Expressway reconstruction and extension operation area traffic safety risk management and control system

Abstract

The utility model discloses a traffic safety risk management and control system for an expressway reconstruction and extension operation area, which comprises the reconstruction and extension operation area, a warning area, a management and control mechanism, at least one display mechanism, and at least one radar video vehicle detector and a meteorological station arranged in the reconstruction and extension operation area, the display mechanism is arranged in the warning area; the at least one display mechanism, the at least one radar video vehicle detector arranged in the reconstruction and extension operation area and the meteorological station are all in communication connection with the management and control mechanism. A radar video vehicle detector is arranged to realize real-time monitoring of the traffic operation state of the reconstruction and extension operation area, a meteorological station is arranged to realize real-time monitoring of various weather state indexes such as visibility, rainfall and air temperature of the reconstruction and extension operation area, and a management and control mechanism can perform real-time risk assessment according to the real-time traffic operation state and the weather state. And the safety risk level of the reconstruction and extension operation area is mastered in time, and speed limiting and risk prompting measures are taken to realize risk avoidance.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and in particular to a traffic safety risk management and control system for a highway reconstruction and expansion operation area. Background Art

[0002] In recent years, many highways built in the early stage of China have shown phenomena such as declining traffic levels and insufficient service levels, which has led to a great demand for highway reconstruction and expansion. The reconstruction and expansion construction usually adopts the traffic organization method of construction and traffic opening at the same time. During the construction process, it is often necessary to temporarily occupy the outer lane or close half of the lane and use half of the lane for two-way traffic, resulting in a reduction in the number of lanes or narrowing of lanes, a reduction in the traffic capacity of the road section, and changes in driving conditions. Vehicles need to complete a series of actions such as merging, converging, and diverting to pass through the construction area, which makes the traffic flow in the working section chaotic, the speed difference is large, and the driving danger increases.

[0003] Speed ​​limits and safety risk warnings for highway reconstruction and expansion work areas are effective means to ensure traffic safety in the work areas, but the existing speed limit methods usually set fixed and unified speed limits for reconstruction and expansion work areas according to the design speed in accordance with laws and regulations. However, the speed limit value of the work area is related to the size of the traffic safety risk in the work area. Unfavorable traffic conditions such as chaotic and saturated traffic flow during peak hours, mixed truck traffic and large speed differences between large and small vehicles, low visibility in rainy and foggy weather, slippery roads due to rainfall, and icy roads in low temperature weather will increase traffic risks. The existing fixed and unified maximum speed limit cannot be adaptively adjusted according to the real-time traffic operation status and weather conditions, which makes it easy for traffic accidents to occur in unfavorable traffic operation conditions and bad weather conditions. As traffic and weather conditions change, the safety risk warning information of the work area also needs to be adjusted in real time.

[0004] Existing road safety control systems related to variable speed limits usually adjust speed limits only based on real-time visibility monitoring, rarely collect rainfall and temperature data, and rarely adjust speed limits based on both visibility monitoring and real-time traffic operation status. For highway reconstruction and expansion work areas with heavy traffic volume, a large number of trucks mixed in traffic, complex driving environment in the work area, and chaotic traffic flow, real-time monitoring of traffic operation status is very important. During the construction of highway reconstruction and expansion, a sudden and drastic reduction in speed limit when entering the construction section from the unconstructed section is likely to cause traffic accidents. For the real-time speed limit management of the reconstruction and expansion work area, it is also very important to limit the speed of the work area step by step or repeatedly prompt the speed limit. Utility Model Content

[0005] The technical problem to be solved by the utility model is: for a highway reconstruction and expansion operation area with heavy traffic, a large number of trucks mixed in the traffic, a complex driving environment in the operation area, chaotic traffic flow, and a large speed limit difference before and after the construction section, it is very important to monitor the traffic operation status and weather conditions in real time, and to limit the speed of the operation area step by step or repeatedly prompt the speed limit.

[0006] The utility model is realized by the following technical solutions:

[0007] A traffic safety risk control system for a highway reconstruction and expansion operation area, wherein the reconstruction and expansion operation area includes a warning area, and the control system includes a control mechanism, at least one display mechanism, and at least one radar video vehicle detector and a meteorological observation station set up in the reconstruction and expansion operation area, wherein the display mechanism is set in the warning area; the at least one display mechanism and the at least one radar video vehicle detector and a meteorological observation station set up in the reconstruction and expansion operation area are all communicatively connected to the control mechanism.

[0008] As a possible design, the reconstruction and expansion operation area also includes an upstream transition zone, a longitudinal buffer zone, a working zone, a downstream transition zone and a termination zone arranged in sequence along the driving direction, and the warning zone is arranged upstream of the upstream transition zone.

[0009] As a possible design, at least one of the radar video vehicle detectors is disposed in the upstream transition zone and / or the working zone.

[0010] As a possible design, the meteorological observation station is set in the upstream transition zone.

[0011] As a possible design, the control mechanism includes a data receiving module, a data storage module, a traffic safety risk assessment module and a traffic safety risk control module; the data receiving module is communicatively connected to the radar video vehicle inspection device and the meteorological observation station, and the traffic safety risk assessment module processes the data from the data receiving module and the data storage module.

[0012] As a possible design, when the number of the display mechanisms is greater than or equal to 2, the multiple display mechanisms are arranged along the driving direction and the speed limit is gradually reduced or the speed limit is repeatedly prompted, and corresponding safety risk prompts are given at different locations.

[0013] As a possible design, the number of the display mechanisms is 4.

[0014] As a possible design, the number of the radar video vehicle detectors is 2.

[0015] As a possible design, a radar video vehicle detector is arranged at the upstream end of the working area in the driving direction.

[0016] As a possible design, one of the radar video vehicle detectors is disposed in the upstream transition zone.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] The utility model of the traffic safety risk control system for the reconstruction and expansion operation area of ​​the expressway realizes real-time monitoring of the traffic operation status of the reconstruction and expansion operation area by setting up a radar video vehicle inspection device, and realizes real-time monitoring of multiple weather status indicators such as visibility, rainfall, temperature, etc. in the reconstruction and expansion operation area by setting up a meteorological observation station, so that the control agency can conduct real-time risk assessment according to the real-time traffic operation status and weather status, timely grasp the safety risk level of the reconstruction and expansion operation area, and take speed limit and risk warning measures to achieve risk avoidance; by setting up multiple display mechanisms at intervals upstream of the operation area, the control agency can continuously and step by step limit the speed of the upstream of the operation area according to the target speed limit value of the operation area, or repeatedly prompt the speed limit, and make corresponding safety risk prompts at different locations, so as to ensure the driving safety of the driver, reduce traffic accidents in the operation area, and thus ensure the construction progress of the reconstruction and expansion project. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the on-site deployment of the traffic safety control system in the highway reconstruction and expansion operation area in the embodiment of the utility model;

[0021] Figure 2 This is a control principle diagram of the traffic safety control system in the highway reconstruction and expansion operation area in the embodiment of the utility model;

[0022] Figure 3 This is an example of the upstream first portable LED display screen display in the embodiment of the utility model;

[0023] Figure 4 This is an example of the display of the upstream second portable LED display screen in the embodiment of the utility model;

[0024] Figure 5 This is an example of the display of the upstream third portable LED display screen in the embodiment of the utility model;

[0025] Figure 6 This is an example of the upstream fourth portable LED display screen display in the embodiment of the present utility model.

[0026] Marks and corresponding parts names in the attached drawings:

[0027] 1- warning area, 2- upstream transition area, 3- buffer area, 4- operation area, 5- downstream transition area, 6- termination area, 7- radar video vehicle inspection device, 8- meteorological observation station, 9- first portable LED display screen, 10- second portable LED display screen, 11- third portable LED display screen, 12- fourth portable LED display screen. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the utility model and their descriptions are only used to explain the utility model and are not intended to limit the utility model.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] For highway reconstruction and expansion work areas with heavy traffic, a large number of trucks mixed in, complex driving environment in the work area, and chaotic traffic flow, the method of adjusting the speed limit by simply monitoring visibility is very limited and is not suitable for vehicle traffic instructions in the highway reconstruction and expansion work areas.

[0034] In response to the above problems, Figure 1 As shown, the utility model provides a traffic safety risk management system for a highway reconstruction and expansion operation area 4, wherein the highway reconstruction and expansion operation area 4 refers to a traffic control area set up for the reconstruction and expansion construction, and a warning area 1, an upstream transition area 2, a longitudinal buffer area 3, a working area, a downstream transition area 5 and a termination area 6 are arranged in sequence along the driving direction.

[0035] Traffic safety risk management and control system includes management and control agencies ( Figure 1 (not shown), at least one display mechanism and at least one radar video vehicle inspection device 7 and a meteorological observation station 8 set up in the renovation and expansion operation area 4, and the display mechanism is set in the warning area; the at least one display mechanism and at least one radar video vehicle inspection device 7 and a meteorological observation station 8 set up in the renovation and expansion operation area 4 are all communicatively connected with the control mechanism.

[0036] The radar video vehicle detector 7 uploads the collected traffic flow of different types of vehicles and average speed of different types of vehicles in the operation area 4 to the control agency.

[0037] The meteorological observation station 8 is characterized in collecting multiple meteorological data such as real-time rainfall, visibility, temperature, etc., and the collected data are uploaded to the control agency through the wireless communication module.

[0038] The display mechanism is used to display the speed limit value and risk warning information.

[0039] The control mechanism includes a data receiving module, a data storage module, a traffic safety risk assessment module, and a traffic safety risk control module, wherein: the data receiving module is used to receive and analyze the traffic flow of different types of vehicles, the average speed of different types of vehicles collected and uploaded by the radar video vehicle inspection device 7, and the rainfall, visibility, and temperature data collected and uploaded by the meteorological observation station 8; the data storage module is used to store the data analyzed by the data receiving module, and the data storage module also pre-stores the historical annual average accident rate of the reconstruction and expansion operation section; the traffic safety risk assessment module processes various types of data, and classifies and grades the accident risk, traffic operation status risk, weather status risk, and comprehensive risk of the operation area 4; the traffic safety risk control module includes a risk classification and grading control countermeasure library, and selects the corresponding target speed limit value and risk warning information of the operation area 4 from the risk classification and grading control countermeasure library according to the various risk levels and comprehensive risk levels obtained by the traffic risk assessment module, and controls the speed limit value and risk warning information displayed on multiple portable LED display screens in the operation area 4 through the wireless communication module.

[0040] Example

[0041] There are two radar video vehicle detectors 7, which are respectively arranged in the working area 4 and the upstream transition area 2. Figure 1 As shown, the two radar video vehicle detectors 7 are used to collect the traffic flow and average driving speed of different types of vehicles in the working area and the upstream transition area 2 in real time, respectively, to provide data support for evaluating the traffic operation status risk of the working area 4.

[0042] It should be pointed out in particular that Figure 1 The installation positions of the two radar video vehicle detectors 7 shown are for illustration only. In actual application, the installation positions should be determined according to the conditions of the construction site. During installation, it should be ensured that the radar video vehicle detector 7 can shoot or detect the traffic flow in the lane without obstruction.

[0043] like Figure 1 As shown, the meteorological observation station 8 is installed within the working area 4 and is used to collect the visibility, rainfall and temperature of the working section in real time, so as to provide data support for assessing the weather condition risk of the working area 4.

[0044] It should be pointed out in particular that Figure 1 The installation position of the meteorological observation station 8 shown is for illustration only. In actual application, the installation position should be determined according to the conditions of the construction site.

[0045] like Figure 1As shown, at least one display mechanism is continuously installed along the driving direction in the warning area 1 of the renovation and expansion operation. The display mechanism can be a portable LED display commonly used in the art, and the portable LED display is mainly used to display prompt information. The display mechanism is connected to the control mechanism for outputting information obtained by calculation in the control mechanism.

[0046] Example

[0047] The number of portable LED display screens is 4, which are used to provide drivers with step-by-step speed limit values ​​and safety risk warning information in the operation area 4 to ensure traffic safety in the operation area 4. The installation location of the portable LED display screen shall comply with the provisions of the Highway Maintenance Safety Operation Regulations (JTGH30), and the continuous installation interval shall not be less than 200m.

[0048] like Figure 2 As shown, Figure 1 The two radar video vehicle inspection devices 7 and the meteorological observation station 8 shown in the figure upload the collected traffic operation status data and meteorological data to the control agency through the wireless communication module. The control agency conducts risk assessment of the operation area 4 based on the collected traffic operation status, meteorological data and the pre-stored annual average accident rate and road section feature data of the operation area 4, determines the target speed limit value and risk warning information of the operation area 4 according to the risk classification and grading decision library, and then sends the wireless communication module to the control agency. Figure 1 The 4 portable LED display screens shown issue instructions to adjust the information displayed on the portable LED display screens.

[0049] Taking the highway with a design speed of 100km / h as an example, the reconstruction and expansion operation area 4 of the embodiment is determined to be an accident-prone section based on the historical average annual accident rate; the current rainfall is observed to be 1mm / h, visibility is 150m, and the temperature is 18°C. The section is currently in rainy and foggy weather with low visibility; the current traffic density of the section is measured to be 1800pcu / (h*ln), the speed difference between large and small vehicles is 20km / h, and the current traffic state is unstable. After risk classification assessment, the traffic safety management and control model determines the target speed limit and risk warning of the operation area 4, and transmits instructions to the portable LED display screen through the wireless communication module to control the first portable LED display screen 9, the second portable LED display screen 10, the third portable LED display screen 11 and the fourth portable LED display screen 12 upstream of the operation area 4 to display Figure 3 , Figure 4 , Figure 5 , Figure 6 The words shown.

[0050] It is worth noting that the first portable LED display screen 9 is the first portable LED display screen in the working area 4 along the driving direction, indicating the construction risk ahead, and the fourth portable LED display screen 12 downstream along the driving direction will enter the transition zone, indicating the risk of fewer lanes.

[0051] The above embodiments have the following technical effects: The traffic safety management system of the highway reconstruction and expansion operation area 4 of the utility model can observe the real-time weather conditions, traffic flow and running speed of different types of vehicles in the operation area 4, provide effective data support for the real-time and comprehensive assessment of the traffic safety risks of the reconstruction and expansion operation area 4, and provide decision support for the real-time speed limit and targeted risk prompts in the operation area 4. Through the continuous arrangement of multiple portable LED display screens, the driver is issued with step-by-step speed limit information and targeted driving risk prompts, which helps the driver to slow down and predict risks in advance, effectively ensuring the driving safety of the operation area 4 and reducing the traffic accident rate.

[0052] It should be noted that the operations involved in the control mechanism in the present invention are all conventional operations in the field or conventional operations can be obtained through simple transformation, and will not be elaborated here.

[0053] The above description is only an embodiment of the present invention in a typical closed outer lane operation scenario and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes in reconstruction and expansion construction operation scenarios including but not limited to occupying the emergency lane, closing the inner lane, and using the opposite lane for traffic.

[0054] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A traffic safety risk management and control system for highway reconstruction and expansion operation areas. It is characterized in that The renovation and expansion work area includes a warning area, and the management and control system includes a management and control mechanism, at least one display mechanism, and at least one radar video vehicle inspection device and a meteorological observation station set up in the renovation and expansion work area, and the display mechanism is set in the warning area; the at least one display mechanism and the at least one radar video vehicle inspection device and a meteorological observation station set up in the renovation and expansion work area are all communicatively connected with the management and control mechanism.

2. According to the highway reconstruction and expansion operation area traffic safety risk management and control system described in claim 1, It is characterized in that The reconstruction and expansion operation area also includes an upstream transition area, a longitudinal buffer area, a working area, a downstream transition area and a termination area arranged in sequence along the driving direction, and the warning area is arranged upstream of the upstream transition area.

3. According to claim 2, a highway reconstruction and expansion operation area traffic safety risk management and control system, It is characterized in that At least one of the radar video vehicle detectors is arranged in the upstream transition area and / or the working area.

4. According to claim 2, a highway reconstruction and expansion operation area traffic safety risk management and control system, It is characterized in that The meteorological observation station is arranged in the upstream transition zone.

5. According to the highway reconstruction and expansion operation area traffic safety risk management and control system described in claim 1, It is characterized in that The control mechanism includes a data receiving module, a data storage module, a traffic safety risk assessment module and a traffic safety risk control module; the data receiving module is communicatively connected to the radar video vehicle inspection device and the meteorological observation station, and the traffic safety risk assessment module processes the data from the data receiving module and the data storage module.

6. According to claim 1, a highway reconstruction and expansion operation area traffic safety risk management and control system, It is characterized in that When the number of the display mechanisms is greater than or equal to 2, the plurality of display mechanisms are arranged along the driving direction and the speed limit is gradually reduced or the speed limit is repeatedly prompted, and corresponding safety risk prompts are given at different positions.

7. According to claim 1, a highway reconstruction and expansion operation area traffic safety risk management and control system, It is characterized in that The number of the display mechanisms is 4.

8. According to the highway reconstruction and expansion operation area traffic safety risk management and control system described in claim 1, It is characterized in that The number of the radar video vehicle detectors is 2.

9. According to claim 2, a highway reconstruction and expansion operation area traffic safety risk management and control system, It is characterized in that A radar video vehicle detector is arranged at the upstream end of the working area in the driving direction.

10. According to claim 2, a traffic safety risk management and control system for highway reconstruction and expansion operation areas, It is characterized in that A radar video vehicle detector is disposed in the upstream transition zone.

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