A method for generating a single-interface simulation signal scheme based on a guidance process

Abstract

This invention discloses a method for generating a single-intersection simulated signal scheme based on a guided process, comprising the following steps: establishing an intersection road network model; selecting the intersection for which signal timing simulation is required; setting signal controller parameters; confirming the directional positioning of the intersection approach lanes; matching lane numbers; inputting basic data for the signal timing scheme; setting and selecting phases; adjusting the phase sequence as needed; completing the settings and saving. This invention guides users step-by-step through the orderly steps of setting up the signal scheme, improving the systematic nature and completeness of the design. This allows even users with limited knowledge of traffic signal control to easily complete the signal scheme setup, reducing the technical complexity of traffic simulation software operation. Users can flexibly adjust various parameters according to actual needs and traffic conditions, optimizing the phase and lane matching operation and reducing the probability of matching errors.

Description

Technical Field

[0001] This invention belongs to the field of urban traffic control technology, specifically a method for generating a single-intersection simulation signal scheme based on a guidance process. Background Technology

[0002] With the continuous development of modernization, the number of motor vehicles in cities has reached a new high. According to statistics, the number of motor vehicles in China reached 435 million in 2023. This large number of vehicles affects the daily travel of urban residents and increases the incidence of road traffic accidents. Therefore, in order to study traffic behavior and explore the changing patterns of traffic flow over time and space, and thus analyze road traffic conditions more scientifically, microscopic traffic simulation software has been introduced. This software establishes a mathematical model of the traffic operation system, simulating the operational states of traffic participants such as vehicles, pedestrians, and traffic lights. This yields quantitative traffic operation index data, providing scientific data support for decision-making in road network design, traffic scheduling, and signal control schemes, ultimately achieving the goals of optimizing traffic flow, improving road network transportation efficiency, and enhancing road traffic safety.

[0003] To optimize the efficiency of traffic signal control schemes, an increasing number of professionals are using microscopic traffic simulation software to simulate intersection signal control. By inputting data such as road network information, signal timing, traffic flow, and vehicle operation information into the software, the software simulates the movement of vehicles passing through intersections. Indicators such as queue length, queue count, delay time, and intersection clearance time are used to evaluate whether the timing scheme needs optimization. Therefore, rapidly generating simulated intersection signal schemes and providing a simpler and more efficient operational process for evaluating the operation of traffic simulation systems has become an optimization direction for microscopic traffic simulation software.

[0004] In existing technologies, most simulation software requires a strong background in traffic engineering and an understanding of signal timing principles, significantly raising the barrier to entry for software timing operation. The signal timing operation of most mainstream simulation software is relatively complex and involves numerous steps. Users need to switch between multiple areas such as the toolbar, menu bar, pop-ups, and the software interface, and there is a lack of operation guidance, requiring users to spend a significant amount of time learning how to use the software. Summary of the Invention

[0005] The purpose of this invention is to provide a single-intersection simulation signal scheme generation method based on a guidance process, in order to solve the problems mentioned in the background art, such as the simulation software requiring a strong traffic professional background, raising the threshold for software timing operation, and the relatively complex and numerous steps in signal timing operation.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A method for generating a single-interface simulation signal scheme based on a guided process includes the following steps:

[0008] Step S1: Establish the intersection road network model;

[0009] Step S2: Select the intersection where signal timing simulation is required, and establish a signal controller at the intersection; then determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0010] Step S3: Set the signal controller parameters, select the signal control scheme under the controller and determine whether to confirm and save. If yes, proceed to the next step; otherwise, you can make modifications.

[0011] Step S4: Confirm the directional positioning of the intersection entrance lane; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made.

[0012] Step S5: Match lane numbers; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0013] Step S6: Input the basic data of the signal timing scheme; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made.

[0014] Step S7: Set and select the phase, add the required number of phases according to user needs, and confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0015] Step S8: Adjust the phase sequence; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications; complete the settings.

[0016] According to the above technical solution, the specific process of establishing the intersection road network model in the software in step S1 is as follows:

[0017] Users can draw roads in the software by dragging waypoints with the mouse, placing waypoints from one road onto the lanes of another road, and intersections will be formed at the intersections. Users can also modify road attributes to set the number of lanes, lane direction, and entrance channelization.

[0018] According to the above technical solution, the specific process of adding a signal controller at the selected intersection in step S1 is as follows:

[0019] In the software, the user selects the signal controller function module, clicks on the intersection for which timing is required, and a pop-up window for adding a signal controller appears. The user enters the controller name and confirms to proceed to the next step.

[0020] According to the above technical solution, in step S3, selecting the signal control scheme under the controller includes selecting the start and end time of the controller and confirming the light color of the special signal control scheme.

[0021] According to the above technical solution, the specific process of setting the basic parameters in the signal control machine in step S3 is as follows:

[0022] Step S301: In the timing interface, the overall layout is a lane direction diagram of the intersection, and the operation area is displayed on the right.

[0023] Step S302: Generate signal control scheme 1 by default;

[0024] Step S303: Enter the start and end times of the scheme and confirm the running time of the scheme; if no input is entered by default, the simulation will be enabled throughout the entire process.

[0025] Step S304: The user can modify the scheme name;

[0026] Step S305: Selection of special control methods, including full red time, flashing light color, etc.;

[0027] Step S306, Confirm, proceed to step S4.

[0028] According to the above technical solution, in step S4, the directional positioning of the selected intersection is confirmed as follows:

[0029] Step S401: When entering the timing interface, the intersections are arranged according to the orientation of north at the top, south at the bottom, west on the left, and east on the right, and the page displays a compass.

[0030] Step S402, the directions of the approach lane are divided into North, Northeast, East, Southeast, South, Southwest, West, and Northwest;

[0031] Step S403: Based on the calibrated direction positioning, mark the direction corresponding to each approach lane of the intersection at the approach lane position;

[0032] Step S404, confirm, proceed to step S5.

[0033] According to the above technical solution, in step S5, the following conditions are confirmed for lane number matching:

[0034] Step S501: Select the lane number matching scheme, starting from the north and rotating clockwise, passing through each road segment in sequence; define the lane number according to the order and lane position information.

[0035] Step S502 requires that the overall sequence be: first the entrance lane, then the exit lane, and finally the pedestrian crossing.

[0036] Step S503, confirm, proceed to step S6.

[0037] According to the above technical solution, the phase is set and selected in step S7 as follows:

[0038] Step S701: Add the required number of phases according to the signal timing scheme;

[0039] Step S702: Select the corresponding direction from the phase information based on the direction of the approach lane where the phase is located and the direction of traffic flow.

[0040] Step S703: Modify the data of the phase according to the green light start time and green light duration of the phase.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] This invention guides users through a structured process to set up signal schemes step-by-step, ensuring no step is overlooked and enhancing the systematic nature and completeness of the design. Clear guidance and feedback mechanisms enable even users with limited knowledge of traffic signal control to easily set up signal schemes, reducing the technical complexity of traffic simulation software operation. Users can flexibly adjust various parameters, such as phase settings and phase sequence adjustments, according to actual needs and traffic conditions, ensuring the generated signal scheme effectively addresses different traffic flow conditions. The invention optimizes the phase and lane matching operation, reducing the probability of matching errors. Through a reasonable signal timing scheme, traffic flow can be effectively optimized, traffic congestion reduced, intersection efficiency improved, and traffic safety ensured. Attached Figure Description

[0043] Figure 1 This is a flowchart of the simulation signal generation method of the present invention;

[0044] Figure 2 This is a schematic diagram of the intersection modeling of the present invention;

[0045] Figure 3 A schematic diagram of the signal control machine is provided for this invention;

[0046] Figure 4 A parameter configuration diagram for the signal controller is provided for this invention;

[0047] Figure 5 This is a diagram showing the intersection direction positioning and lane matching of the present invention;

[0048] Figure 6 This is a phase setting diagram for the present invention;

[0049] Figure 7 This is a diagram showing the intersection direction positioning and lane matching of the present invention. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example 1

[0052] like Figure 1 As shown, a method for generating a single-intersection simulation signal scheme based on a guided process is characterized by the following steps:

[0053] Step S1: Establish the intersection road network model;

[0054] Step S2: Select the intersection where signal timing simulation is required, and establish a signal controller at the intersection; then determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0055] Step S3: Set the signal controller parameters, select the signal control scheme under the controller and determine whether to confirm and save. If yes, proceed to the next step; otherwise, you can make modifications.

[0056] Step S4: Confirm the directional positioning of the intersection entrance lane; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made.

[0057] Step S5: Match lane numbers; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0058] Step S6: Input the basic data of the signal timing scheme; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made.

[0059] Step S7: Set and select the phase, add the required number of phases according to user needs, and confirm and save. If yes, proceed to the next step; otherwise, make modifications.

[0060] Step S8: Adjust the phase sequence; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications; complete the settings.

[0061] This invention guides users through a structured process to set up signal schemes step-by-step, ensuring no step is overlooked and enhancing the systematic nature and completeness of the design. Clear guidance and feedback mechanisms enable even users with limited knowledge of traffic signal control to easily set up signal schemes, reducing the technical complexity of traffic simulation software operation. Users can flexibly adjust various parameters, such as phase settings and phase sequence adjustments, according to actual needs and traffic conditions, ensuring the generated signal scheme effectively addresses different traffic flow conditions. The invention optimizes the phase and lane matching operation, reducing the probability of matching errors. Through a reasonable signal timing scheme, traffic flow can be effectively optimized, traffic congestion reduced, intersection efficiency improved, and traffic safety ensured.

[0062] Example 2

[0063] This embodiment is a further refinement of Embodiment 1.

[0064] Preferably, step S1, the specific process of establishing the intersection road network model in the software, is as follows:

[0065] like Figure 2 As shown, users can draw roads in the software by dragging waypoints with the mouse, placing them on the lanes of another road. Intersections will automatically form at the intersections. Users can modify road attributes such as the number of lanes, lane direction, and entrance channelization.

[0066] Preferably, step S2, the specific process of adding a signal controller at the selected intersection, is as follows:

[0067] like Figure 3 As shown, the user selects the signal controller function module in the software, right-clicks the intersection that needs to be timed, and a pop-up window for adding a signal controller appears. The user enters the controller name and confirms to proceed to the next step.

[0068] Preferably, after completing the settings in step S2, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0069] Preferably, step S3, setting the basic parameters in the selected signal controller, is specifically as follows:

[0070] like Figure 4 As shown in Figure 1, the overall layout of the timing interface is a lane direction map of the intersection, with the operation area displayed on the right.

[0071] 2. Default signal control scheme 1 is generated.

[0072] 3. Enter the start and end times of the scheme to confirm the running time of the scheme; the default is to enable the simulation throughout the entire process if no input is entered.

[0073] 4. Users can modify the scheme name.

[0074] 5. Selection of special control methods, including full red time, flashing light color, etc.

[0075] 6. Confirm and proceed to the next step.

[0076] Preferably, after completing the settings in step S3, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0077] Preferably, in step S4, the directional positioning of the selected intersection is confirmed as follows:

[0078] 1. When entering the timing interface, the intersections are arranged according to the orientation of north at the top, south at the bottom, west on the left, and east on the right, and the page displays a compass.

[0079] 2. According to the People's Republic of China Public Security Industry Standard GA / T1049.2-2013, the directions of the approach lane are divided into North, Northeast, East, Southeast, South, Southwest, West, and Northwest.

[0080] 3. Based on the calibrated direction positioning, the software automatically marks the direction corresponding to each approach lane of the intersection at the approach lane position.

[0081] 4. Confirm and proceed to the next step.

[0082] Preferably, after completing the settings in step S4, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0083] Preferably, in step S5, the lane number matching is confirmed as follows:

[0084] like Figure 5 As shown, 1. Select a lane numbering matching scheme, such as starting from the north and rotating clockwise, passing through each road segment in sequence; define lane numbers based on the order, lane position, and other information.

[0085] 2. The overall layout must follow the order of entrance lanes first, then exit lanes, and finally pedestrian crossings.

[0086] 3. Confirm and proceed to the next step.

[0087] When the matching scheme is to rotate clockwise from north to south, increasing lane numbers from the outside in, the outermost lane of the north entrance is numbered 0, and each lane towards the central divider is incremented by 1; the east entrance continues the numbering of the north entrance, incrementing by 1 each time. Then, the exit lanes and pedestrian crossings are numbered in directional order.

[0088] Preferably, after completing the S5 settings, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0089] Preferably, in step S6, the basic data of the input signal timing scheme are as follows:

[0090] Users input control cycle duration data based on their personal information.

[0091] Preferably, after completing the settings in step S6, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0092] Preferably, in step S7, the phase is set and selected as follows:

[0093] like Figure 6 As shown, 1. Add the required number of phases according to the signal timing scheme.

[0094] 2. Select the appropriate direction from the phase information based on the direction of the approach lane where the phase is located and the direction of traffic flow.

[0095] 3. Modify the data for that phase based on the green light start time and green light duration.

[0096] Preferably, after completing the S7 settings, the user selects whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0097] Preferably, in step S8, the phase sequence is adjusted as needed as follows:

[0098] like Figure 7 As shown, users can adjust the phase sequence as needed based on their known signal timing scheme. Clicking the up and down arrows after a phase increases its order within the signal control scheme.

[0099] Preferably, after completing the settings of S8, the user can choose whether to confirm and save. If yes, proceed to the next step; otherwise, return to the previous step to make modifications.

[0100] Preferably, after the user confirms that all the previous steps have been completed, they can click "Confirm" to save the signal timing scheme and complete the signal timing settings for the intersection.

[0101] In this invention, the generation of simulated intersection signal schemes based on a guided process reduces the possibility of missed or incorrect operations. The user interface for the simulated intersection signal schemes is optimized, improving operational efficiency. A default intersection direction is defined, and phase settings can be directly selected based on the approach lane direction and traffic flow direction. This reduces the possibility of lane and phase mismatches and further improves operational efficiency.

[0102] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0103] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for generating a single-interface simulation signal scheme based on a guided process, characterized in that: Includes the following steps: Step S1: Establish the intersection road network model; the specific process for establishing the intersection road network model is as follows: Users can draw roads by dragging waypoints from one road onto the lanes of another road, and intersections will be automatically formed at the intersections. Users can also modify road attributes, such as the number of lanes, lane direction, and entrance channelization settings. Step S2: Select the intersection where signal timing simulation is required, and establish a signal controller at the intersection; then determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications. Step S3: Set the signal controller parameters, select the signal control scheme under the controller and determine whether to confirm and save. If yes, proceed to the next step; otherwise, you can make modifications. Step S4: Confirm the directional positioning of the intersection entrance lane; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made. The confirmed directional positioning of the selected intersection is as follows: Step S401: When entering the timing interface, the intersections are arranged according to the orientation of north at the top, south at the bottom, west on the left, and east on the right, and the page displays a compass. Step S402, the directions of the approach lane are divided into North, Northeast, East, Southeast, South, Southwest, West, and Northwest; Step S403: Based on the calibrated direction positioning, mark the direction corresponding to each approach lane of the intersection at the approach lane position; Step S404, confirm, proceed to step S5; Step S5: Match lane numbers; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications. The confirmation of lane number matching is as follows: Step S501: Select a lane numbering matching scheme, starting from the north and rotating clockwise, passing through each road segment in sequence; define lane numbers according to the order and lane position information; when the matching scheme is clockwise rotation from the north and increasing lane numbers from the outside to the inside, the outermost lane number of the north entrance lane is 0, and each lane towards the central divider is incremented by 1; the east entrance lane continues the numbering of the north entrance lane, incrementing by 1 each time, and then numbering the exit lanes and pedestrian crossings according to the direction order; Step S502: The overall sequence must be: first the entrance lane, then the exit lane, and finally the pedestrian crossing. Step S503, confirm, proceed to step S6; Step S6: Input the basic data of the signal timing scheme; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, modifications can be made. Step S7: Set and select the phase. Add the required number of phases according to user needs and confirm and save. If yes, proceed to the next step; otherwise, modifications can be made. The process of setting and selecting the phase in step S7 is as follows: Step S701: Add the required number of phases according to the signal timing scheme; Step S702: Select the corresponding direction from the phase information based on the direction of the approach lane where the phase is located and the direction of traffic flow. Step S703: Modify the data of the phase according to the green light start time and green light duration of the phase; Step S8: Adjust the phase sequence; and determine whether to confirm and save. If yes, proceed to the next step; otherwise, make modifications; complete the settings.

2. The method for generating a single-interface simulation signal scheme based on a guided process according to claim 1, characterized in that: In step S1, the specific process of building the intersection road network model in the software is as follows: Users can draw roads in the software by dragging waypoints with the mouse, placing waypoints from one road onto the lanes of another road, and intersections will be formed at the intersections. Users can also modify road attributes to set the number of lanes, lane direction, and entrance channelization.

3. The method for generating a single-interface simulation signal scheme based on a guided process according to claim 1, characterized in that: In step S1, the specific process of adding a signal controller at the selected intersection is as follows: In the software, the user selects the signal controller function module, clicks on the intersection for which timing is required, and a pop-up window for adding a signal controller appears. The user enters the controller name and confirms to proceed to the next step.

4. The method for generating a single-interface simulation signal scheme based on a guidance process according to claim 1, characterized in that: In step S3, selecting the signal control scheme under the controller includes selecting the start and end times of the controller and confirming the light color of the special signal control scheme.

5. The method for generating a single-interface simulation signal scheme based on a guidance process according to claim 4, characterized in that: In step S3, the specific process of setting the basic parameters in the signal control machine is as follows: Step S301: In the timing interface, the overall layout is a lane direction diagram of the intersection, and the operation area is displayed on the right. Step S302: Generate signal control scheme 1 by default; Step S303: Enter the start and end times of the scheme and confirm the running time of the scheme; if no input is entered by default, the simulation will be enabled throughout the entire process. Step S304: The user can modify the scheme name; Step S305: Selection of special control methods, including full red time, flashing light color, etc.; Step S306, Confirm, proceed to step S4.

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