Traffic assistance system, traffic assistance method, and program

Abstract

To further improve safety with more appropriate traffic assist.SOLUTION: A traffic assist system comprises: a sensor device that is installed in a monitoring object area and detects an object including a mobile object moving in the monitoring object area; a management unit that manages a situation of the monitoring object area on the basis of a detection result of the sensor device; and a presentation control unit that presents information related to a behavior of the mobile object on an information presentation device installed in the monitoring object area. The mobile object includes: a vehicle moving on a road in the monitoring object area; and a traffic participant who crosses the road by passing a cross walk existing in the road. The information presentation device includes a first light emission unit provided on at least one of opposite sides of a passing direction of the cross walk. The presentation control unit causes the first light emission unit to emit light until the crossing finishes in a case where a congested traffic lane and a traffic lane without congestion are included in the road and there is a traffic participant who crosses the road by passing the cross walk from the congested traffic lane side on the basis of the situation of the monitoring object area.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a traffic assistance system, a traffic assistance method, and a program. [Background technology]

[0002] In recent years, efforts to provide access to sustainable transportation systems that take into consideration vulnerable traffic participants have become more active. To achieve this, efforts are being made to further improve traffic safety and convenience through research and development of safety prevention technologies. In this regard, there is known technology that changes the flashing state or light-emitting color of luminous road studs embedded in stop lines or crosswalks on oncoming traffic lanes when a sensor detects a vehicle or pedestrian entering an intersection (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-172927 Summary of the Invention [Problem to be solved by the invention]

[0004] However, safety prevention technologies have not yet been able to provide more precise lighting control in response to changes in the situation near crosswalks. As a result, there has been a problem in that appropriate traffic assistance is not provided to vehicles passing through the road, and there is a possibility that sufficient safety cannot be ensured.

[0005] In order to solve the above-mentioned problems, one of the objects of the present application is to provide a traffic assistance system, a traffic assistance method, and a program that can further improve safety through more appropriate traffic assistance, thereby further improving traffic safety and contributing to the development of a sustainable transportation system. [Means for solving the problem]

[0006] The traffic assistance system, traffic assistance method, and program according to the present invention employ the following configuration. (1): A traffic assistance system according to one aspect of the present invention includes a sensor device installed in a monitored area that detects objects, including moving objects, moving within the monitored area; a management unit that manages the status of the monitored area based on the detection results of the sensor device; and a presentation control unit that causes an information presentation device installed in the monitored area to present information regarding the behavior of the moving objects based on the status. The moving objects include vehicles moving on roads within the monitored area and traffic participants crossing the road by traversing a crosswalk existing on the road. The information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in the direction of travel. The presentation control unit, based on the status of the monitored area, causes the first light-emitting unit to emit light until the crossing is completed when the road includes a congested lane and an uncongested lane and when a traffic participant is crossing the road by traversing the crosswalk from the congested lane side.

[0007] (2): In the above aspect (1), when there is a traffic participant crossing the road by passing through the crosswalk from the congested lane side, and when there is a vehicle approaching the crosswalk from the non-congested lane, the presentation control unit causes the first light-emitting unit to emit light until the crossing is completed.

[0008] (3): In the above aspect (1), the presentation control unit causes the first light-emitting unit provided on the less congested lane side of the crosswalk to emit light.

[0009] (4) In the above aspect (1), the congested lane includes a lane on which the speed of vehicles traveling on the lane is equal to or lower than a predetermined speed.

[0010] (5): In the above aspect (1), the presentation control unit switches between lighting and blinking the first light-emitting unit based on the distance between the crosswalk and a vehicle in the congested lane.

[0011] (6): In the above aspect (1), the first light emitting unit is provided on a stop line for stopping the vehicle, which is located on at least one of both sides of the crosswalk.

[0012] (7): A traffic assistance system according to another aspect of the present invention includes a sensor device installed in a monitored area and detecting objects, including moving bodies, moving through the monitored area; a management unit that manages the status of the monitored area based on the detection results of the sensor device; and a presentation control unit that causes an information presentation device installed in the monitored area to present information regarding the behavior of the moving bodies based on the status, wherein the moving bodies include vehicles moving on roads within the monitored area and traffic participants crossing the road by passing through a crosswalk present on the road, the information presentation device includes a second light-emitting unit provided at a position corresponding to the crosswalk, and the presentation control unit, based on the status of the monitored area, causes the second light-emitting unit to emit light until the crossing is completed when there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and when there is a vehicle approaching the crosswalk.

[0013] (8): In the above aspect (7), the presentation control unit reduces the amount of light emitted by the second light-emitting unit when it is lit or flashing as the degree of proximity between the vehicle approaching the crosswalk and the crosswalk increases.

[0014] (9): Another aspect of the present invention provides a traffic assistance method, in which a computer manages the situation of a monitored area based on detection results of a sensor device installed in the monitored area and detecting objects, including moving bodies, moving within the monitored area, and causes an information presentation device installed in the monitored area to present information regarding the behavior of the moving bodies based on the situation, wherein the moving bodies include vehicles moving on roads within the monitored area and traffic participants crossing the road by traversing a crosswalk existing on the road, and the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in the direction of travel, and when, based on the situation of the monitored area, the road includes a congested lane and an uncongested lane and there is a traffic participant crossing the road by traversing the crosswalk from the congested lane side, the first light-emitting unit is illuminated until the crossing is completed.

[0015] (10): Another aspect of the present invention provides a traffic assistance method, in which a computer manages the situation of a monitored area based on detection results from a sensor device installed in the monitored area and detecting objects, including moving bodies, moving within the monitored area, and causes an information presentation device installed in the monitored area to present information regarding the behavior of the moving bodies based on the situation, the moving bodies including vehicles moving on roads within the monitored area and traffic participants crossing the road by traversing a crosswalk present on the road, the information presentation device including a second light-emitting unit provided at a position corresponding to the crosswalk, and based on the situation of the monitored area, if there is a traffic participant crossing the road by traversing the crosswalk during a predetermined time period and if there is a vehicle approaching the crosswalk, the second light-emitting unit is illuminated until the crossing is completed.

[0016] (11): Another aspect of the present invention provides a program that causes a computer to manage the situation of a monitored area based on detection results from a sensor device that is installed in the monitored area and detects objects, including moving bodies, moving within the monitored area, and to present information regarding the behavior of the moving bodies based on the situation on an information display device installed in the monitored area, wherein the moving bodies include vehicles moving on roads within the monitored area and traffic participants crossing the road by traversing a crosswalk that exists on the road, and the information display device includes a first light-emitting unit that is installed on at least one of both sides of the crosswalk in the direction of traffic, and when, based on the situation of the monitored area, the road includes congested and uncongested lanes and there is a traffic participant crossing the road by traversing the crosswalk from the congested lane side, the first light-emitting unit is illuminated until the crossing is completed.

[0017] (12): Another aspect of the present invention provides a program that causes a computer to manage the situation of a monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving bodies, moving within the monitored area, and to present information regarding the behavior of the moving bodies based on the situation on an information presentation device installed in the monitored area, wherein the moving bodies include vehicles moving on roads within the monitored area and traffic participants crossing the road by passing through a crosswalk on the road, and the information presentation device includes a second light-emitting unit installed at a position corresponding to the crosswalk, and based on the situation of the monitored area, if there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and if there is a vehicle approaching the crosswalk, the second light-emitting unit is illuminated until the crossing is completed. [Effects of the Invention]

[0018] According to the above aspects (1) to (12), safety can be further improved by more appropriate traffic assistance. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a diagram showing an example of a schematic configuration of a transportation assistance system 1 according to an embodiment. [Figure 2] 1 is a diagram illustrating an example of the configuration of a sensor device 100. FIG. [Figure 3] FIG. 2 is a diagram illustrating an example of the configuration of an information presentation device 200. [Figure 4] FIG. 2 is a diagram illustrating an example of the configuration of a traffic assistance device 300. [Figure 5] 1 is a diagram showing a first example of information presentation in a transportation assistance system 1. FIG. [Figure 6] FIG. 10 is a diagram showing a second example of information presentation in the transportation assistance system 1. [Figure 7] 10 is a flowchart showing an example of a first presentation control process. [Figure 8] 10 is a flowchart showing an example of a second presentation control process. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, with reference to the drawings, embodiments of a traffic assistance system, a traffic assistance method, and a program of the present invention will be described. Note that the mobile body in the traffic assistance system of the embodiment includes all objects (mobile bodies) traveling on roads, such as two-wheeled, three-wheeled, or four-wheeled vehicles, bicycles, and people (pedestrians). The vehicle includes any vehicle that can carry a person (driver) and move on a road surface, including, for example, a single-seater vehicle (micromobility). In the following description, the vehicle will be described as a four-wheeled vehicle. Furthermore, although the following description will be given for a case where laws stipulating left-hand traffic apply, if laws stipulating right-hand traffic apply, the left and right can be reversed.

[0021] [System Configuration] FIG. 1 is a diagram illustrating an example of a schematic configuration of a traffic assistance system 1 according to an embodiment. The traffic assistance system 1 illustrated in FIG. 1 includes, for example, a sensor device 100, an information presentation device 200, and a traffic assistance device 300. These are communicatively connected via, for example, a network NW. The network NW includes, for example, the Internet, a cellular network, a Wi-Fi network, a wide area network (WAN), a local area network (LAN), a provider device, a wireless base station, and the like. At least a portion of the network NW is connected by wire or wirelessly. The traffic assistance system 1 may include one or more of each of the sensor device 100, the information presentation device 200, and the traffic assistance device 300.

[0022] The sensor device 100 is installed in a monitoring area and detects objects (including, for example, moving objects moving within the area) present within the area. The monitoring area is, for example, an area including roads on which moving objects such as vehicles 400 and traffic participants such as pedestrians and bicycles pass. Roads include, for example, crosswalks without traffic lights and roads with stop lines painted on the road surface. When the monitoring area is a road, a plurality of sensor devices 100 may be installed along the road at predetermined intervals. The sensor device 100 may also include an optical sensor and a radio wave sensor. The optical sensor is, for example, a camera device, and specifically, includes a stereo camera, a monocular camera, a fisheye camera, an infrared camera, etc. The radio wave sensor includes a radar device, a LIDER (Light Detection and Ranging) camera, a TOF (Time Of Flight) camera, etc. A radar device emits radio waves such as millimeter waves around the sensor device 100 and detects radio waves reflected by objects (reflected waves) to detect at least the position (distance and direction) of the objects. LIDAR irradiates the area around the sensor device 100 with light (or electromagnetic waves with wavelengths similar to light) and measures the scattered light. LIDAR detects the distance from the sensor device 100 to an object based on the time between emitting and receiving the light. The irradiated light is, for example, pulsed laser light. If the area to be monitored includes a road, the sensor device 100 is installed, for example, to capture an image of the area including the road from above the road. The sensor ranges (field of view (photography range) in the case of a camera device) of the installed multiple sensor devices 100 may or may not overlap at least partially.

[0023] The information presentation device 200 is installed near a monitored area and presents information (e.g., information about the behavior of a moving object) to moving objects (vehicles, pedestrians, bicycles, etc.) passing through the monitored area. Information about the behavior of a moving object includes, for example, information to prompt the moving object to slow down, information to cause the moving object to avoid contact with an object, and information to notify the moving object that there is another moving object nearby. The information presentation device 200 also provides information about the surrounding situation by, for example, controlling the light-emitting state (e.g., lighting, blinking, color, light intensity (amount of light)) of the light-emitting unit. The information presentation device 200 may also be provided with a display and / or speaker in addition to (or instead of) the light-emitting unit to display images and output sounds.

[0024] Traffic assistance device 300 monitors the situation in a monitoring target area based on information obtained from sensor device 100 via network NW, and causes information presentation device 200 to output information based on the monitoring results. Traffic assistance device 300 may be realized, for example, as a server device or storage device incorporated in a cloud computing system. In this case, the functions of traffic assistance device 300 may be realized by multiple server devices and storage devices in the cloud computing system.

[0025] Next, the functional configurations of the sensor device 100, the information presentation device 200, and the traffic assistance device 300 will be specifically described.

[0026] [Sensor device] Fig. 2 is a diagram illustrating an example of the configuration of the sensor device 100. Note that the example in Fig. 2 illustrates a configuration in which the sensor device 100 is a camera device. The sensor device 100 includes, for example, a communication unit 110, an imaging unit 120, and a control unit 130.

[0027] Communication unit 110 communicates with traffic assistance device 300 and other external devices via network NW. For example, communication unit 110 transmits image data captured by imaging unit 120 to the traffic assistance device. Communication unit 110 may also transmit information received from traffic assistance device 300 to nearby information presentation devices 200 or surrounding vehicles.

[0028] The imaging unit 120 is, for example, a digital camera that uses a solid-state imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The imaging unit 120 repeatedly captures images of an area including a monitoring target area at a predetermined cycle or at a predetermined timing. The angle of view (image capture area) of the imaging unit 120 is fixed. The imaging unit 120 may be a stereo camera, a monocular camera, a fisheye camera, an infrared camera, or the like.

[0029] If the sensor device 100 is a radio wave sensor, a radar device, a LIDAR, a TOF camera, or the like may be provided instead of (or in addition to) the imaging unit 120. The sensor device 100 may also be provided with a microphone that picks up ambient sounds.

[0030] The control unit 130 controls the overall components of the sensor device 100. For example, the control unit 130 transmits sensor data including an image captured by the imaging unit 120 (hereinafter referred to as a camera image), image capture date and time information, and identification information (e.g., a sensor ID) for identifying the sensor device 100, to the traffic assistance device via the network NW. In addition to (or instead of) the camera image, the sensor data may include information obtained by various sensors such as a radar device, a LIDAR, a microphone, etc.

[0031] [Information presentation device] 3 is a diagram showing an example of the configuration of the information display device 200. The information display device 200 includes, for example, a communication unit 210, a light-emitting unit 220, and a control unit 230.

[0032] Communication unit 210 communicates with traffic assistance device 300 and other external devices via network NW. For example, communication unit 210 receives various types of information transmitted from traffic assistance device 300.

[0033] The light-emitting unit 220 is provided at a position corresponding to road markings such as stop lines and crosswalks on roads in the monitored area. For example, the light-emitting unit 220 may be provided at least in part of the stop line or crosswalk, or on at least one of both sides of the crosswalk in the direction of traffic (the direction of crossing the road), or in a position near (within a predetermined distance from) the stop line or crosswalk. The light-emitting unit 220 lights up or flashes, for example, using one or more light-emitting elements. The light-emitting elements are, for example, light-emitting diodes (LEDs), but are not limited to these, and may be any light-emitting elements that can light up or flash based on a control signal. The light-emitting unit 220 may emit light in a predetermined color or in a color instructed by the control unit 230.

[0034] The control unit 230 controls the overall components of the information presentation device 200. For example, the control unit 230 controls the lighting, blinking, color, intensity (amount of light), etc. of the light-emitting unit 220 based on instructions (control information) from the traffic assistance device 300. If a display or speaker is provided in addition to (or instead of) the light-emitting unit 220, the control unit 230 may control the output of each of them based on instructions from the traffic assistance device 300.

[0035] [Traffic support device] FIG. 4 is a diagram illustrating an example of the configuration of traffic assistance device 300. Traffic assistance device 300 includes, for example, a communication unit 310, an acquisition unit 320, an analysis unit 330, a management unit 340, a presentation control unit 350, and a storage unit 360. Acquisition unit 320, analysis unit 330, management unit 340, and presentation control unit 350 are realized by, for example, a hardware processor such as a central processing unit (CPU) executing a program (software). Some or all of these components may be realized by hardware (including circuitry) such as a large-scale integration (LSI), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a graphics processing unit (GPU), or may be realized by a combination of software and hardware. The program may be stored in a storage device in advance, or may be stored on a removable storage medium (non-transitory storage medium) such as a DVD or CD-ROM, and installed in the storage device by inserting the storage medium into a drive device.

[0036] The storage unit 360 may be realized by the various storage devices described above, or an SSD, an EEPROM, a ROM, a RAM, etc. The storage unit 360 stores, for example, infrastructure facility information 362, programs, and various other information.

[0037] In the infrastructure facility information 362, for example, the sensor ID of the sensor device 100 or the identification information (information presentation device ID) of the information presentation device 200 is associated with the installation location, the installation orientation (angle of view (photography range), display surface direction), and type information. For example, in the case of the sensor device 100, the type information includes identification information for identifying a stereo camera, a monocular camera, a fisheye camera, an infrared camera, a TOF camera, a radar device, a LIDAR, a microphone, etc. In addition, in the case of the information presentation device 200, the type information includes identification information for identifying a light-emitting unit, a display, a speaker, etc.

[0038] Under the control of the server-side communication control unit 520, the communication unit 310 communicates with the sensor device 100, the information presentation device 200, and other external devices (including mobile objects such as vehicles) via the network NW.

[0039] The acquisition unit 320 acquires information from the sensor device 100 or other external devices. For example, the acquisition unit 320 acquires sensor data from the sensor device 100. The acquisition unit 320 may also acquire information about the weather, season, etc. of the area to be monitored from the external device, etc. The acquired data may be stored in the storage unit 360.

[0040] The analysis unit 330 analyzes the sensor data acquired by the acquisition unit 320. For example, when the sensor data includes image data, the analysis unit 330 analyzes the image data. For example, the analysis unit 330 converts the image data into a bird's-eye view coordinate system, and performs image recognition processing using well-known methods (such as binarization processing, contour extraction processing, image enhancement processing, feature extraction processing, and pattern matching processing) based on the converted coordinate system to recognize the surrounding situation of the sensor device 100. Alternatively, the analysis unit 330 may perform the above-described image analysis processing without performing coordinate conversion.

[0041] For example, the analysis unit 330 identifies an object included in the image data based on a matching result (degree of match) between feature information obtained by analyzing the image data and feature information predetermined for each object. The degree of match may be derived, for example, based on how many of the multiple feature elements included in the feature information match, or based on the similarity of each feature element or the entire feature information. The degree of match may also be derived, for example, based on the sum of the differences for each element. The degree of match may also be derived from the two pieces of information being compared using AI (artificial intelligence) functions such as machine learning (neural networks) and deep learning, or may be derived using other methods.

[0042] The analysis unit 330 may also recognize the position, type, speed, etc. of objects within the monitored area. Examples of objects include moving bodies such as the vehicle 400, pedestrians, and bicycles. The objects may also include road structures, etc. Examples of road structures include road signs, traffic signals, curbs, medians, guardrails, fences, walls, railroad crossings, crosswalks drawn on the road surface, and stop lines (stop lines). The objects may also include obstacles that hinder the travel of the host vehicle M.

[0043] The analysis unit 330 also recognizes the position (relative position), speed, acceleration, and other conditions of moving objects present within the monitored area. The position of an object is recognized, for example, as a position in an absolute coordinate system with a representative point of the moving object (such as the center of gravity or the center of a drive shaft) as the origin. The "condition" of an object may include, for example, the acceleration or jerk of the moving object, or its "behavioral state" (for example, whether or not the moving object is crossing a pedestrian crossing or about to cross a pedestrian crossing). The analysis unit 330 may also analyze characteristic information such as shape to identify moving objects present in the monitored area. The analysis unit 330 may also measure the traveling time of the moving object in a specified section.

[0044] Furthermore, the analysis unit 330 identifies the moving objects included in the sensor data acquired from the multiple sensor devices 100 based on the degree of match between feature information such as the shape of the moving objects. The feature information may include, in addition to shape, patterns (including externally visible symbols, numbers, etc.), colors, etc. For example, the analysis unit 330 identifies moving objects whose degree of match is equal to or greater than a threshold as the same object, assigns common identification information to the moving objects, and assigns unique identification information to moving objects whose degree of match is less than the threshold. This allows the management unit 340 to manage the movement status of each moving object based on the assigned identification information.

[0045] The management unit 340 manages the status of the area to be monitored (for example, the movement status of moving objects) based on the analysis results of the analysis unit 330. For example, the management unit 340 determines whether there are traffic participants (pedestrians or bicycles) crossing (or about to cross) a road at a crosswalk present in the area, and whether there are vehicles approaching the crosswalk. The management unit 340 also manages the congestion status (presence or absence of traffic jams, etc.), weather, etc. in the area to be monitored.

[0046] The presentation control unit 350 provides information to a moving object moving in the monitored area via the information presentation device 200 installed in the area based on the situation in the monitored area. The provided information includes, for example, information notifying a vehicle that there is a traffic participant crossing the crosswalk, and information notifying a traffic participant crossing the crosswalk that a vehicle is approaching, by controlling the light emission state, such as lighting, blinking, or light intensity, of the light emitter of the information presentation device 200. The provided information may also include image and audio information.

[0047] [Example of information presentation] Next, an example of information presentation in the transportation assistance system 1 will be specifically described.

[0048] <First Example> Figure 5 is a diagram showing a first example of information presentation in traffic assistance system 1. The example in Figure 5 shows sensor devices 100-1 and 100-2 capable of capturing images using cameras or the like of an area including road RD1, which has one lane in each direction (lanes L1 and L2) and allows two-way traffic, as well as a crosswalk CW1 drawn on the road surface of road RD1 and stop lines SL1 and SL2 placed a predetermined distance before crosswalk CW1 in the direction of travel of lanes L1 and L2 of road RD1. In the example in Figure 5, no traffic signals are installed near crosswalk CW1.

[0049] 5, light-emitting units 220-1 and 220-2 of information display device 200 are provided on at least a portion of each of stop lines SL1 and SL2. Light-emitting units 220-1 and 220-2 are an example of a "first light-emitting unit" provided on at least one of both sides of crosswalk CW in the traffic direction (both in the example of FIG. 5). Light-emitting unit 220 may be embedded in the rendering area of ​​stop lines SL1 and SL2 so that its light emission is visible, or may be provided near (within a predetermined distance from) stop lines SL1 and SL2. In the example of FIG. 5, vehicle 400-1 is traveling on lane L1 toward crosswalk CW1, and vehicles 400-2 to 400-4 are on lane L2.

[0050] Sensor device 100-1 captures an image of an area (monitoring area) that includes at least crosswalk CW1, stop line SL1, and lane L1 that is a predetermined distance away from crosswalk CW1. Sensor device 100-2 captures an image of an area that includes at least crosswalk CW1, stop line SL2, and lane L2 that is a predetermined distance away from crosswalk CW1. The installation locations and sensor ranges of sensor devices 100-1 and 100-2 are stored in advance in infrastructure information 362 of traffic assistance device 300 and are managed by management unit 340.

[0051] In the example of FIG. 5 , sensor devices 100-1 and 100-2 capture images of a fixed imaging range at a predetermined interval or at a predetermined timing, and transmit sensor data including the captured image data to traffic assistance device 300. Traffic assistance device 300 causes analysis unit 330 to analyze the sensor data acquired by acquisition unit 320. Based on the analysis results of the sensor data captured by sensor devices 100-1 and 100-2, management unit 340 recognizes that pedestrian P1 is crossing road RD1 by passing through crosswalk CW1, from the relationship between the position, movement direction, and speed of pedestrian P1 and the position of crosswalk CW1. In this case, management unit 340 causes presentation control unit 350 to execute light emission control of light-emitting units 220-1 and 220-2 according to the surrounding conditions of crosswalk CW1.

[0052] For example, management unit 340 monitors the congestion state of lane L2 from the speed and relative positions of vehicles 400-1 to 400-4 obtained as analysis results by analysis unit 330. For example, if the speed of vehicles 400-1 to 400-4 (average speed of vehicles traveling in the same lane) is below a predetermined speed (e.g., approximately 20 kph or less), management unit 340 determines that the lane is congested. "Congested" may include, for example, congestion on the road, as well as a state where on-street parking makes it difficult to pass through, or where blind spots are likely to form near crosswalks.

[0053] In addition to determining based on speed, management unit 340 may determine that lane L1 is congested when the average inter-vehicle distance (which may exclude pedestrian crossing sections) between vehicles 400-2 to 400-4 is less than a predetermined distance. Management unit 340 may also derive the degree of congestion according to the above-mentioned vehicle speed and average inter-vehicle distance, and determine that lane L2 is congested when the degree of congestion is equal to or greater than a threshold. In this case, the smaller the speed and inter-vehicle distance, the greater the degree of congestion. In the example of FIG. 5, management unit 340 determines that lane L1 is not congested and lane L2 is congested.

[0054] For example, when lane L2 is congested and pedestrian P1 is crossing road RD1 from lane L2 through crosswalk CW1, the presentation control unit 350 controls the information presentation device 200 to keep the light emitting unit 220 emitting light until pedestrian P1 finishes crossing. In this case, the presentation control unit 350 turns on or blinks the light emitting unit 220-1, of the light emitting units 220-1 and 220-2, which is provided at a position corresponding to uncongested lane L1 (on the lane L1 side). Furthermore, when there is pedestrian P1 crossing the road through the crosswalk CW1 from the congested lane L2 side and there is a vehicle 400-1 approaching the crosswalk CW1 (located at a predetermined distance from the crosswalk CW1) from the uncongested lane L1, the presentation control unit 350 may turn on or blink the light emitting unit 220-1. This allows the attention of surrounding moving bodies to be drawn at a more appropriate time, making it easier to avoid collisions between moving bodies.

[0055] The presentation control unit 350 may adjust the light-emitting state of the light-emitting unit 220-1 based on the state of a vehicle 400-3 (a vehicle in a traffic jam) that is located in a position that is likely to create a blind spot of the crosswalk CW1 when viewed from the vehicle 400-1. For example, the presentation control unit 350 switches between lighting and blinking of the light-emitting unit 220-1 based on the distance between the crosswalk and the vehicle 400-3. In this case, the presentation control unit 350 controls the light-emitting unit 220-1 to blink when the vehicle 400-3 is near the crosswalk CW1 (within a predetermined distance), and controls the light-emitting unit 220-1 to light up when the vehicle 400-3 is not near the crosswalk CW1. The predetermined distance may be a fixed distance or a variable distance that is adjusted depending on the road shape, congestion level, the shape of the vehicle 400-3 (large vehicle, standard car), weather, time of day, etc.

[0056] The presentation control unit 350 may also adjust the blinking cycle, the color of the emitted light, or the amount of light depending on the distance between the vehicle 400-3 near the crosswalk CW1 and the crosswalk CW1. In this case, the presentation control unit 350 may speed up the blinking cycle, use a more emphasized color, or increase the amount of light (brighter) so that the display is more emphasized as the distance becomes shorter. The presentation control unit 350 may also adjust the blinking cycle, color, or amount of light depending on the weather, time of day (daytime, nighttime), etc., to make the crosswalk more visible to the occupants of the vehicle 400-1.

[0057] In this way, when there is a traffic participant crossing road RD1 via crosswalk CW1, vehicle M can notify vehicle 400-1 approaching crosswalk CW1 of the presence of a traffic participant (pedestrian P1) crossing crosswalk CW1 by illuminating the stop line SL1 in the lane on the less congested side (lane L1 in the figure). Therefore, even if vehicle 400-1 cannot see pedestrian P1 because of vehicle 400-3 existing between the position of crossing pedestrian P1 and the position of vehicle 400-1, the occupant of vehicle 400-1 can recognize pedestrian P1 at an early stage due to the illumination of stop line SL1 and can perform driving operations such as slowing down or stopping vehicle 400-1. Furthermore, the flashing stop line SL1 allows pedestrian P1 to recognize the presence of vehicle 400-1 (a vehicle approaching the crosswalk) that he or she cannot see, which can prompt the pedestrian to pay attention early and make it easier to take action such as avoiding contact.

[0058] In the first embodiment, the presentation control unit 350 may, in addition to blinking the light emitting unit 220-1 provided at the stop line SL1, also cause the light emitting unit 220-2 provided at the stop line SL2 on the congested lane L2 side to emit light when the surroundings are dark, depending on the time of day, weather, etc. In this case, the presentation control unit 350 may control the light emitting unit 220-2 to emit light in a less conspicuous state than the light emitting state of the light emitting unit 220-1 (for example, by reducing the light intensity or slowing down the blinking cycle).

[0059] <Second Example> FIG. 6 is a diagram illustrating a second example of information presentation in the traffic assistance system 1. The example in FIG. 6 illustrates a scene in which, on the same road RD1 as in FIG. 5, a vehicle 400-5 is traveling in lane L1 at a speed V1 toward a crosswalk CW1, and a vehicle 400-6 is traveling in lane L2 at a speed V2 toward the crosswalk CW1. In the example in FIG. 6, in addition to light-emitting units 220-1 and 220-2, light-emitting units 220-3 and 220-4 of the information presentation device 200 are provided in at least a portion of the crosswalk CW1 (for example, in the lateral direction of the road (a line drawn along the Y-axis direction in the figure)). The light-emitting units 220-3 and 220-4 are an example of a "second light-emitting unit" provided at a position associated with the crosswalk CW1. Note that, in the second example, the light-emitting units 220-1 and 220-2 do not necessarily have to be provided.

[0060] In the second example, when there is a traffic participant (pedestrian P1) crossing road RD1 via crosswalk CW1 during a predetermined time period and when there is a vehicle 400 approaching crosswalk CW1, the presentation control unit 350 controls the light emission states of the light emitters 220-3 and 220-4 according to the distance between the vehicle 400 and the crosswalk CW1. The predetermined time period is, for example, a time period when it is dark around the crosswalk CW1 (for example, nighttime), and may be a fixed time period or a variable time period set according to the season or weather.

[0061] For example, the presentation control unit 350 reduces the light intensity of the lit or flashing light-emitting units 220-3 and 220-4 as the degree of proximity between the vehicle 400 approaching the crosswalk CW1 and the crosswalk CW1 increases. For example, the degree of proximity increases as the distance D1 between the vehicle 400-5 and the crosswalk CW1 decreases. For example, when the distance D1 becomes less than a predetermined distance (in other words, when the degree of proximity becomes equal to or greater than a threshold), the presentation control unit 350 starts light-emitting control to turn on or flash the light-emitting units 220-3 and 220-4 at a predetermined light intensity. Thereafter, as the vehicle 400-5 approaches the crosswalk CW1 (as the distance D1 decreases), the presentation control unit 350 performs light-emitting control to gradually reduce the light intensity (dimming). Then, when the pedestrian P1 (traffic participant) has finished crossing the crosswalk or when the vehicle 400-5 has stopped, the presentation control unit 350 stops the light-emitting units 220-3 and 220-4 from emitting light.

[0062] The presentation control unit 350 may control the light emission state so that the blinking cycle becomes slower as the distance D1 becomes smaller (the closer the vehicle 400-5 is), or the blinking cycle becomes faster as the speed V1 of the vehicle 400-5 becomes faster. This allows the vehicle 400-5 and the pedestrian P1 to be more appropriately alerted depending on the situation of the surrounding vehicles. In particular, since crosswalks without traffic signals are difficult to see at night, the light emitted by the light-emitting unit 220 can notify the occupants of the vehicle 400-5 of the presence of the crosswalk CW1 and the pedestrian P1. The pedestrian P1 can also more accurately know that the vehicle 400-5 is approaching in a situation where it is difficult to see the surrounding situation at night.

[0063] 6, when there are multiple vehicles 400-5 and 400-6 approaching crosswalk CW1 from different lanes, the presentation control unit 350 may control the light-emitting states of the light-emitting units 220-3 and 220-4 based on the longer of the distance D1 between the vehicle 400-5 and the crosswalk CW1 and the distance D2 between the vehicle 400-6 and the crosswalk CW1 (distance D1 in the example of FIG. 6). The presentation control unit 350 may also derive the time required for the vehicle 400-5 to reach the crosswalk CW1 based on the distance D1 and the speed V1 of the vehicle 400-5, and derive the time required for the vehicle 400-6 to reach the crosswalk CW1 based on the distance D2 and the speed V2 of the vehicle 400-6, compare the respective times, and control the light-emitting states of the light-emitting units 220-3 and 220-4 based on the vehicle corresponding to the longer time.

[0064] The presentation control unit 350 may also perform light emission control on the light-emitting unit 220-3 located closer to vehicle 400-5 based on distance D1, and may perform light emission control on the light-emitting unit 220-4 located closer to vehicle 400-6 based on distance D2. This allows the pedestrian P1 to more accurately grasp the direction and extent of an approaching vehicle from the light-emitting states of the light-emitting units 220-3 and 220-4. The presentation control unit 350 may also cause the light-emitting unit 220-1 located at the stop line SL1 and the light-emitting unit 220-2 located at the stop line SL2 to emit light according to the light-emitting states of the light-emitting units 220-3 and 220-4. The presentation control unit 350 may also adjust the color of light emitted by the light-emitting unit 220 depending on the time of day, weather, surrounding conditions, etc. This allows the light-emitting state of the light-emitting unit 220 to be more appropriately controlled according to the surrounding conditions.

[0065] In the above-described embodiment, an example using sensor data from a plurality of sensor devices 100-1 and 100-2 has been described. However, similar processing may be performed using sensor data from a single sensor device 100 with a wider sensor range. Also, in the examples of FIGS. 5 and 6, lanes L1 and L2 are oncoming lanes. However, similar processing to that described above may be performed on a road with two or more lanes that allow traffic to travel in the same direction. Furthermore, the first and second embodiments may be performed simultaneously. Furthermore, the presentation control unit 350 may output a sound (such as a warning sound) from the speaker of the information presentation device 200 or display an image on the display of the information presentation device 200 according to the light-emitting states of the light-emitting units 220-1 to 220-4.

[0066] [Processing flow] Next, a description will be given of the flow of processing executed by the traffic assistance system 1 of the embodiment. Note that the following description will mainly focus on the presentation control (light emission control) processing by the light emitting unit among the processing executed by the traffic assistance system 1. Furthermore, each processing described below may be repeatedly executed at a predetermined cycle or at a predetermined timing.

[0067] Fig. 7 is a flowchart showing an example of the first presentation control process. In the example of Fig. 7, the presentation control unit 350 determines whether or not there is a pedestrian crossing from the congested lane (an example of a traffic participant crossing a road) (step S100). If it is determined that there is a pedestrian crossing, the presentation control unit 350 determines whether or not there is a vehicle approaching the crosswalk where the pedestrian is crossing (step S102). This vehicle is, for example, a vehicle (oncoming vehicle) traveling in the opposite lane of the congested lane.

[0068] If it is determined that a vehicle is approaching the crosswalk, the presentation control unit 350 determines whether or not a vehicle in the congested lane is present near the crosswalk (step S104). If it is determined that a vehicle in the congested lane is present near the crosswalk, the presentation control unit 350 performs control to start flashing the light emitting unit 220 provided at the stop line of the travel lane of the vehicle approaching the crosswalk (the stop line before the crosswalk) (step S106). If it is determined that a vehicle in the congested lane is not present near the crosswalk, the presentation control unit 350 performs control to start lighting the light emitting unit 220 provided at the stop line of the travel lane of the vehicle approaching the crosswalk (step S108).

[0069] After the process of step S106 or step S108, the presentation control unit 350 determines whether the crossing pedestrian has finished crossing the road (step S110). If it is determined that the crossing has not finished, the process returns to step S104. If it is determined that the crossing has finished, the presentation control unit 350 stops lighting or blinking the light-emitting unit 220 (step S112), and the process of this flowchart ends.

[0070] Furthermore, if it is determined in the processing of step S100 that there are no pedestrians crossing from the congested lane side, or if it is determined in the processing of step S102 that there are no vehicles approaching the crosswalk, the processing of this flowchart ends.

[0071] FIG. 8 is a flowchart showing an example of the second presentation control process. In the example of FIG. 8, the presentation control unit 350 determines whether or not there is a pedestrian crossing the road at night (a pedestrian crossing at night) passing through the crosswalk (step S120). If it is determined that there is a pedestrian crossing at night, the presentation control unit 350 determines whether or not there is a vehicle approaching the crosswalk (step S122). If it is determined that there is a vehicle approaching the crosswalk, the presentation control unit 350 controls the light-emitting unit 220 provided at the crosswalk to emit light in stages according to the distance between the vehicle and the crosswalk (step S124). Next, the management unit 340 determines whether or not the pedestrian crossing the road has finished crossing or whether or not the approaching vehicle has stopped (step S126). If it is determined that the pedestrian crossing the road has not finished crossing and the approaching vehicle has not stopped, the process returns to step S124. Furthermore, if it is determined that the vehicle has finished crossing the road or that the approaching vehicle has stopped, the presentation control unit 350 causes the light emitting unit 220 to stop emitting light (step S128), thereby ending the processing of this flowchart.

[0072] Furthermore, if it is determined in step S120 that there are no pedestrians crossing the road at night, or if it is determined in step S122 that there are no vehicles approaching the road, the process of this flowchart ends. Note that the first and second lighting controls described above may be executed simultaneously.

[0073] <Modification> At least a portion of the configuration of the traffic assistance device 300 described above may be provided in the sensor device 100 or the information presentation device 200. Furthermore, at least a portion of the configuration of the sensor device 100 or the information presentation device 200 may be included in the traffic assistance device 300. For example, when the sensor device 100 and the information presentation device 200 are included in the traffic assistance device 300, the presentation control unit 350 has the functions of the control units 130 and 230.

[0074] According to the embodiment described above, the traffic assistance system 1 includes a sensor device 100 that is installed in a monitored area and that detects objects, including moving objects, moving within the monitored area; a management unit 340 that manages the situation in the monitored area based on the detection results of the sensor device 100; and a presentation control unit 350 that causes an information presentation device 200 installed in the monitored area to present information related to the behavior of the moving objects. The moving objects include vehicles moving on roads within the monitored area and traffic participants crossing the road at a crosswalk. The information presentation device 200 includes a first light-emitting unit that is installed on at least one side of the crosswalk in the direction of travel (for example, a stop line in front of the crosswalk for stopping vehicles). Based on the situation in the monitored area, if the road includes congested and uncongested lanes and there is a traffic participant crossing the road at the crosswalk from the congested lane side, the presentation control unit 350 causes the first light-emitting unit to emit light until the crossing is completed, thereby enabling more appropriate traffic assistance and further improving safety.

[0075] Furthermore, according to an embodiment, the information presentation device 200 includes the above-described sensor device 100, management unit 340, and presentation control unit 350, and includes a second light-emitting unit provided at the crosswalk. Based on the situation in the monitored area, if there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and if there is a vehicle approaching the crosswalk, the presentation control unit 350 causes the second light-emitting unit to emit light until the crossing is completed, thereby further improving safety through more appropriate traffic assistance. This can therefore further improve traffic safety and contribute to the development of a sustainable transportation system.

[0076] For example, according to the embodiment, it is possible to more accurately track moving objects and grasp the situation by coordinating multiple sensor devices 100 installed in a monitoring area. Also, according to the embodiment, it is possible to provide an infrastructure-cooperative traffic support system by effectively utilizing infrastructure facilities such as cameras installed in a predetermined area.

[0077] The above-described embodiment can be expressed as follows. a storage medium for storing computer-readable instructions; a processor connected to the storage medium; The processor executes the computer-readable instructions to: managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through a crosswalk that exists on the road, the first light-emitting unit is illuminated until the crossing is completed. Traffic assistance system.

[0078] The above-described embodiment can be expressed as follows. a storage medium for storing computer-readable instructions; a processor connected to the storage medium; The processor executes the computer-readable instructions to: managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a second light-emitting unit provided at a position associated with the crosswalk, based on the situation in the monitored area, if there is a traffic participant crossing the road by passing through a crosswalk that exists on the road during a predetermined time period and if there is a vehicle approaching the crosswalk, causing the second light-emitting unit to emit light until the crossing is completed; Traffic assistance system.

[0079] The above describes the form for carrying out the present invention using an embodiment, but the present invention is not limited to such an embodiment, and various modifications and substitutions can be made within the scope that does not deviate from the gist of the present invention. [Explanation of symbols]

[0080] 1. Traffic Support System 100 Sensor Device 110, 210, 310 Communications Department 120 Imaging unit 130, 230 control unit 200 Information presentation device 220 Light-emitting part 300 Traffic support equipment 320 Acquisition Department 330 Analysis Department 340 Management Department 350 Presentation control unit 360 Memory Department

Claims

1. a sensor device that is installed in a monitoring area and detects objects, including moving objects, moving in the monitoring area; a management unit that manages the situation of the monitoring target area based on the detection results of the sensor device; a presentation control unit that causes an information presentation device installed in the monitoring area to present information about the behavior of the moving object based on the situation, The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, the presentation control unit, based on the situation of the monitored area, when the road includes a congested lane and an uncongested lane and when there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, causes the first light-emitting unit to emit light until the crossing is completed; the presentation control unit causes the first light-emitting unit provided on the less congested lane side of both sides of the crosswalk in a traffic direction to emit light. Traffic assistance system.

2. a sensor device that is installed in a monitoring area and detects objects, including moving objects, moving in the monitoring area; a management unit that manages the situation of the monitoring target area based on the detection results of the sensor device; a presentation control unit that causes an information presentation device installed in the monitoring area to present information about the behavior of the moving object based on the situation, The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, the presentation control unit, based on the situation of the monitored area, when the road includes a congested lane and an uncongested lane and when there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, causes the first light-emitting unit to emit light until the crossing is completed; the presentation control unit switches between lighting and blinking of the first light-emitting unit based on a distance between the crosswalk and a vehicle in the congested lane. Traffic assistance system.

3. a sensor device that is installed in a monitoring area and detects objects, including moving objects, moving in the monitoring area; a management unit that manages the situation of the monitoring target area based on the detection results of the sensor device; a presentation control unit that causes an information presentation device installed in the monitoring area to present information about the behavior of the moving object based on the situation, The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, the presentation control unit, based on the situation of the monitored area, when the road includes a congested lane and an uncongested lane and when there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, causes the first light-emitting unit to emit light until the crossing is completed; The first light-emitting unit is provided on a stop line for stopping the vehicle that is located on at least one of both sides of the crosswalk. Traffic assistance system.

4. the presentation control unit causes the first light-emitting unit to emit light until the crossing is completed when there is a traffic participant crossing the road by passing through the crosswalk from the congested lane side and when there is a vehicle approaching the crosswalk from the non-congested lane. A traffic assistance system according to any one of claims 1 to 3.

5. The congested lane includes a lane in which the speed of vehicles traveling on the lane is equal to or lower than a predetermined speed. A traffic assistance system according to any one of claims 1 to 3.

6. a sensor device that is installed in a monitoring area and detects objects, including moving objects, moving in the monitoring area; a management unit that manages the situation of the monitoring target area based on the detection results of the sensor device; a presentation control unit that causes an information presentation device installed in the monitoring area to present information about the behavior of the moving object based on the situation, The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a second light-emitting unit provided at a position associated with the crosswalk, the presentation control unit, based on the situation of the monitored area, causes the second light-emitting unit to emit light until the crossing is completed when there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and when there is a vehicle approaching the crosswalk; the presentation control unit reduces the amount of light when lit or flashing by the second light-emitting unit as the degree of proximity between the vehicle approaching the crosswalk and the crosswalk increases, Traffic assistance system.

7. The computer managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; causing the first light-emitting unit provided on the less congested lane side of both sides of the crosswalk in the traffic direction to emit light; Transportation support methods.

8. The computer managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; switching between lighting and blinking of the first light-emitting unit based on the distance between the crosswalk and a vehicle in the congested lane; Transportation support methods.

9. The computer managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; The first light-emitting unit is provided on a stop line for stopping the vehicle that is located on at least one of both sides of the crosswalk. Transportation support methods.

10. The computer managing the situation of the monitored area based on the detection results of a sensor device that is installed in the monitored area and detects objects, including moving objects, moving in the monitored area; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a second light-emitting unit provided at a position associated with the crosswalk, based on the situation in the monitored area, if there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and if there is a vehicle approaching the crosswalk, causing the second light-emitting unit to emit light until the crossing is completed; the amount of light emitted by the second light-emitting unit when lit or flashing decreases as the degree of proximity between the vehicle approaching the crosswalk and the crosswalk increases, Transportation support methods.

11. On the computer, managing the situation of the area to be monitored based on the detection results of a sensor device that is installed in the area to be monitored and detects objects, including moving objects, moving in the area to be monitored; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; causing the first light-emitting unit provided on the less congested lane side of both sides of the crosswalk in the traffic direction to emit light; program.

12. On the computer, managing the situation of the area to be monitored based on the detection results of a sensor device that is installed in the area to be monitored and detects objects, including moving objects, moving in the area to be monitored; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; switching between lighting and blinking of the first light-emitting unit based on the distance between the crosswalk and a vehicle in the congested lane; program.

13. On the computer, managing the situation of the area to be monitored based on the detection results of a sensor device that is installed in the area to be monitored and detects objects, including moving objects, moving in the area to be monitored; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a first light-emitting unit provided on at least one of both sides of the crosswalk in a traffic direction, If the road includes a congested lane and an uncongested lane based on the situation in the monitored area, and if there is a traffic participant crossing the road from the congested lane side by passing through the crosswalk, the first light-emitting unit emits light until the crossing is completed; The first light-emitting unit is provided on a stop line for stopping the vehicle that is located on at least one of both sides of the crosswalk. program.

14. On the computer, managing the situation of the area to be monitored based on the detection results of a sensor device that is installed in the area to be monitored and detects objects, including moving objects, moving in the area to be monitored; displaying information about the behavior of the moving object on an information display device installed in the area to be monitored based on the situation; The moving objects include vehicles moving on roads within the monitoring area and traffic participants crossing the roads by passing through crosswalks present on the roads; the information presentation device includes a second light-emitting unit provided at a position associated with the crosswalk, based on the situation in the monitored area, if there is a traffic participant crossing the road by passing through the crosswalk during a predetermined time period and if there is a vehicle approaching the crosswalk, causing the second light-emitting unit to emit light until the crossing is completed; the amount of light emitted by the second light-emitting unit when lit or flashing decreases as the degree of proximity between the vehicle approaching the crosswalk and the crosswalk increases, program.

Images