Urban traffic planning multi-dimensional fusion method and system

Abstract

The invention discloses an urban traffic planning multi-dimensional fusion method and system, and relates to the technical field of urban traffic planning. A data acquisition module of a traffic planning system is utilized to acquire traffic data related to current traffic planning and historical traffic data in real time; a traffic delay second number JY, a delay second number DM and a traffic accident-to-traffic planning comprehensive influence value CH which have correlation influence with one another are sequentially calculated and output, and the trend of the traffic accident-to-traffic planning comprehensive influence value CH in a linear graph is evaluated by using a visual analysis module. Therefore, traffic delay conditions, vehicle delay conditions and traffic accident frequency change trends in different time periods and different areas can be visually seen, an urban traffic planning scheme can be evaluated and optimized more comprehensively, the accuracy and effectiveness of the planning scheme are improved, and powerful support is provided for sustainable development of urban traffic.

Description

Technical Field

[0001] The present invention relates to the technical field of urban traffic planning, and in particular to a multi-dimensional fusion method and system for urban traffic planning. Background Art

[0002] Urban traffic planning refers to the comprehensive, scientific and reasonable arrangement and organization of the planning, design, construction and management of the urban traffic system. Its purpose is to solve urban traffic problems, improve the efficiency of urban traffic operation, meet people's travel needs, and promote urban economic and social development. With the acceleration of urbanization, urban traffic problems have become increasingly prominent. Traffic congestion, frequent accidents and environmental pollution have become important factors restricting urban development. In order to effectively respond to these challenges, urban traffic planning needs to comprehensively consider multiple dimensions to achieve optimization of traffic flow and improvement of safety.

[0003] At present, the existing urban traffic planning methods often only focus on a single dimension, while ignoring the mutual influence and correlation between them. This leads to the lack of comprehensiveness and systematicness of planning schemes, making it difficult to effectively deal with complex urban traffic problems. The data barriers between different departments have led to serious data islands, which makes urban traffic planning lack sufficient data support, which limits the accuracy and effectiveness of planning schemes. In addition, the existing methods are often based on static data for planning and lack dynamic adjustment mechanisms. With the continuous changes in urban traffic conditions, static planning schemes are often difficult to adapt to new traffic needs. In addition, the existing methods often lack intuitive visualization methods, making it difficult for the public to understand and accept the planning schemes. This limits the implementation effect and public participation of the planning schemes. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-dimensional fusion method and system for urban traffic planning, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides a multi-dimensional fusion method for urban traffic planning, and the specific implementation steps are as follows:

[0006] Step I: using the data collection module of the traffic planning system to collect the current traffic planning related traffic data and historical traffic data in real time;

[0007] Step II, using the evaluation calculation module, sequentially calculate and output the traffic delay seconds JY, the delay seconds DM, and the comprehensive impact value CH of the traffic accident on the traffic planning, which have correlation effects with each other;

[0008] Step III: Use the visualization analysis module to evaluate the trend of the comprehensive impact value CH of traffic accidents on traffic planning in the line graph;

[0009] Step III: Based on the trend evaluation of the comprehensive impact value CH of traffic accidents on traffic planning on the linear graph, conduct a comprehensive evaluation of the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC, and a new round of multi-dimensional traffic planning;

[0010] The evaluation and calculation module includes a unit for quantifying the impact of road repair problems on traffic planning, a unit for evaluating the additional impact of population density on traffic, and a unit for quantifying the comprehensive impact of traffic accidents on traffic.

[0011] Optionally, the equipment used by the data acquisition module includes a data acquisition device, the data acquisition device includes a camera, a sensor, and a traffic flow monitor, and the data acquisition module is used to collect traffic data;

[0012] The equipment used by the evaluation and calculation module includes computing equipment, which includes servers and workstations. The evaluation and calculation module is used to run calculations and evaluations;

[0013] The equipment used by the visualization analysis module includes visualization equipment, which includes a large-screen display and a touch screen. The visualization analysis module is used to display line graphs and multi-dimensional traffic planning results.

[0014] Optionally, the calculation formula for quantifying the impact of the road repair problem on traffic planning is as follows:

[0015]

[0016] XP = XC / YT;

[0017] in:

[0018] JY is the traffic delay in seconds;

[0019] XP is the frequency of small-area repairs on roads;

[0020] XC is the number of monthly repairs, YT is the number of days, and YT reflects the total number of days in the month;

[0021] L is the total length of the road;

[0022] S avg The average time for repair in a single day;

[0023] H is the number of working hours per day, which is set to 8 hours.

[0024] Optionally, the average repair time per day is S avg The calculation formula is as follows:

[0025] S avg =(S1+S2+S3+......+S xc) / XC;

[0026] Monthly repair times XC reflects the total number of road repairs in the current month;

[0027] S1 is the time for the first road repair in a single day, S2 is the time for the second road repair in a single day, and S3 is the time for the third road repair in a single day. xc Patching roads for the first XC single day.

[0028] Optionally, the calculation formula for evaluating the additional traffic impact unit of population density is as follows:

[0029]

[0030] RM = RL / M;

[0031] CS = M / CM;

[0032] in:

[0033] DM is the delay seconds, which reflects the number of seconds that vehicles are delayed due to population density when the green light just comes on;

[0034] RM is the current population density;

[0035] RL is the current total number of people, which reflects the total number of people waiting to pass on both sides of the traffic light;

[0036] LD is the green light duration;

[0037] M is the total area, which reflects the total area of ​​the current road controlled by traffic lights;

[0038] CS is the maximum vehicle capacity, which reflects the total number of vehicles that can be parked and waiting for traffic lights within the total area M;

[0039] CM is the parking area occupied by a single vehicle. CM reflects the total area occupied by a single vehicle and the front and rear safe distances.

[0040] Optionally, the calculation formula for quantifying the traffic accident frequency on the comprehensive traffic impact unit is as follows:

[0041]

[0042] in:

[0043] CH is the comprehensive impact of traffic accidents on traffic planning;

[0044] HC is the number of traffic accidents per year;

[0045] N is the total number of years the road is in use.

[0046] Optionally, based on the comprehensive impact value CH of the traffic accident on the traffic planning, a trend is presented on a line graph, and the traffic planning is analyzed as follows:

[0047] If the comprehensive impact value of traffic accidents on traffic planning CH continues to rise on the linear graph within the month, it means that the traffic situation is deteriorating. The frequency of small-area road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC should be comprehensively evaluated to carry out a new round of multi-dimensional traffic planning.

[0048] If the comprehensive impact value CH of traffic accidents on traffic planning continues to decline and remain flat on the linear graph within the month, it means that the traffic conditions are improving and tend to remain stable, and the current multi-dimensional traffic planning should be maintained.

[0049] Optionally, based on the continuous increase in the comprehensive impact value CH of traffic accidents on traffic planning in the current month on the linear graph, the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC are evaluated and the multi-dimensional planning based on the evaluation is as follows:

[0050] Frequency of small road area repairs XP

[0051] If the frequency of small-area repairs on the road XP continues to rise on the line graph, it indicates that there is a serious damage problem on the current traffic section, and the traffic planning system should remind to increase the repair efforts to reduce the frequency of small-area repairs on the road XP;

[0052] If the frequency of small-area road repair XP continues to decrease and remain flat on the linear graph, it indicates that the road quality of the current traffic section is good and maintenance of the current road section should be maintained;

[0053] Delay seconds DM

[0054] If the delay seconds DM continues to rise on the line graph, it means that the current population density RM is high and the green light duration LD is short. The traffic planning system should increase the green light duration LD for the current road section.

[0055] If the delay seconds DM continues to decrease and remain flat on the linear graph, it means that the current population density RM and the green light duration LD are in a balanced state, and the traffic planning system should maintain the green light duration LD for the current road section;

[0056] Number of traffic accidents per year HC

[0057] If the number of traffic accidents per year HC continues to rise on the line graph, it indicates that there are serious traffic accident problems on the current traffic section, and the traffic planning system should remind to increase patrols and traffic control to reduce the number of traffic accidents per year HC;

[0058] If the annual number of traffic accidents HC continues to decline and remain flat on the linear graph, it means that there are few traffic accident problems on the current traffic section, and the current patrol and traffic control efforts should be maintained.

[0059] The present invention provides a multi-dimensional fusion system for urban traffic planning, comprising: a data collection module, an evaluation and calculation module, and a visual analysis module;

[0060] The data collection module is used to collect traffic data;

[0061] The evaluation and calculation module includes a unit for quantifying the impact of road repair problems on traffic planning, a unit for evaluating the additional impact of population density on traffic, and a unit for quantifying the comprehensive impact of traffic accidents on traffic;

[0062] The visualization analysis module is used to evaluate and present the comprehensive impact value CH of traffic accidents on traffic planning, the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC calculated and output by the evaluation and calculation module on a linear graph.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] 1. The present invention realizes a multi-dimensional integrated analysis of urban traffic planning issues by quantifying the impact unit of road repair problems on traffic planning, evaluating the interrelationship and cyclic impact mechanism of population density on additional traffic impact unit, and quantifying the frequency of traffic accidents on comprehensive traffic impact unit. This helps to more comprehensively evaluate and optimize urban traffic planning schemes and improve the accuracy and effectiveness of planning schemes. In addition, the cyclic impact mechanism breaks down the data barriers between different departments and realizes data sharing and integration, which helps to provide sufficient data support for urban traffic planning and improve the scientificity and reliability of planning schemes.

[0065] 2. The present invention achieves dynamic adjustment of planning schemes based on real-time traffic data and historical traffic data, which helps to adapt to the ever-changing urban traffic conditions and improve the adaptability and flexibility of planning schemes.

[0066] 3. The present invention uses a line graph to visualize the evaluation and analysis method to intuitively display the key indicators of the comprehensive impact value CH of traffic accidents on traffic planning, the frequency of small road area repairs XP, the number of delay seconds DM and the number of traffic accidents per year HC, which helps to integrate and improve the planning scheme, thereby improving the implementation effect of the planning scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 A flowchart of the multi-dimensional integration method for urban transportation planning;

[0068] Figure 2This is a schematic diagram of the structure of the evaluation calculation module of the present invention;

[0069] Figure 3 Schematic diagram of the loop feedback structure of the multi-dimensional fusion method for urban transportation planning;

[0070] Figure 4 It is a comprehensive linear diagram of the comprehensive impact value CH of traffic accidents on traffic planning, the frequency XP of small road area repairs, the number of delay seconds DM, and the number of traffic accidents per year HC in the present invention. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] Regarding the multi-dimensional integration method of urban traffic planning, it is different from the existing urban traffic planning methods and systems. The existing urban traffic planning methods ignore the mutual influence and correlation between traffic data and sufficient data support, lack comprehensiveness and systematicness, and lack dynamic adjustment mechanisms and intuitive visualization methods. This algorithm unit uses a line graph to feedback the current multi-dimensional integrated traffic status, and then intuitively sees the traffic delays, vehicle delays and changing trends of traffic accident frequencies in different time periods and regions. Based on this, it can more comprehensively evaluate and optimize urban traffic planning schemes, improve the accuracy and effectiveness of planning schemes, and provide strong support for the sustainable development of urban traffic.

[0073] For example, see Figures 1 to 4 ,This implementation provides a multi-dimensional integration method for urban transportation planning. The specific implementation steps are as follows:

[0074] Step I: using the data collection module of the traffic planning system to collect the current traffic planning related traffic data and historical traffic data in real time;

[0075] Step II, using the evaluation calculation module, sequentially calculate and output the traffic delay seconds JY, the delay seconds DM, and the comprehensive impact value CH of the traffic accident on the traffic planning, which have correlation effects with each other;

[0076] Step III: Use the visualization analysis module to evaluate the trend of the comprehensive impact value CH of traffic accidents on traffic planning in the line graph;

[0077] Step III: Based on the trend evaluation of the comprehensive impact value CH of traffic accidents on traffic planning on the linear graph, conduct a comprehensive evaluation of the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC, and a new round of multi-dimensional traffic planning;

[0078] The evaluation and calculation module includes a unit for quantifying the impact of road repair problems on traffic planning, a unit for evaluating the additional impact of population density on traffic, and a unit for quantifying the comprehensive impact of traffic accidents on traffic.

[0079] The equipment used by the data acquisition module includes data acquisition equipment, which includes cameras, sensors, and traffic flow monitors. The data acquisition module is used to collect traffic data;

[0080] The equipment used by the evaluation computing module includes computing equipment, including servers and workstations, and the evaluation computing module is used to run calculations and evaluations;

[0081] The equipment used by the visualization analysis module includes visualization equipment, which includes a large-screen display and a touch screen. The visualization analysis module is used to display line graphs and multi-dimensional traffic planning results;

[0082] A multi-dimensional fusion system for a multi-dimensional fusion method of urban traffic planning, comprising: a data acquisition module, an evaluation calculation module, and a visualization analysis module;

[0083] The data collection module is used to collect traffic data;

[0084] The evaluation and calculation module is used to run the calculation and evaluation of the unit for quantifying the impact of road repair problems on traffic planning, the unit for evaluating the additional impact of population density on traffic, and the unit for quantifying the impact of traffic accident frequency on comprehensive traffic;

[0085] The visualization analysis module is used to evaluate and present the comprehensive impact value CH of traffic accidents on traffic planning, the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC calculated and output by the evaluation and calculation module on a linear graph.

[0086] In this embodiment, the traffic planning system realizes the multi-dimensional integration and holistic evaluation of urban traffic planning through the collaborative work of data collection, calculation, and visualization modules and units. By feeding back the current traffic status through line graphs, the traffic planning system can promptly discover and solve potential problems in traffic planning, thereby improving the efficiency and safety of urban traffic.

[0087] In this embodiment, the system forms a complete multi-dimensional fusion system for urban traffic planning through the cooperation of three algorithm units. Combining the three operation results of JY, ​​DM and CH, it is helpful to realize the intelligence, efficiency and safety of urban traffic. JY is the number of seconds of traffic delay, which can accurately calculate the traffic delay time caused by small-area road repairs. This quantification process is very important because it is directly related to the smoothness and efficiency of urban traffic. DM is the number of seconds of delay, which can more accurately evaluate the delay time of vehicles at traffic lights, and provide data support for optimizing traffic light configuration and adjusting signal control strategies, thereby reducing vehicle delays. The CH is the comprehensive impact of traffic accidents on traffic planning, which can comprehensively evaluate the impact of traffic accident frequency on traffic planning, thereby providing a scientific basis to guide the optimization of traffic planning, reduce traffic accidents, and improve traffic efficiency and safety. At the same time, CH also takes into account the adjustment of the impact of road repairs and traffic light delays on traffic accident frequency, thereby ensuring the accuracy and reliability of the evaluation results. In addition, according to the trend of small-area road repair frequency XP, delay seconds DM, annual number of traffic accidents HC, and comprehensive impact value of traffic accidents on traffic planning CH on the linear graph, the traffic planning system can adjust traffic planning more accurately and in multiple dimensions.

[0088] See also Figures 1 to 4 , the calculation formula for quantifying the impact of road repair problems on traffic planning units is as follows:

[0089]

[0090] XP = XC / YT;

[0091] in:

[0092] JY is the traffic delay in seconds;

[0093] XP is the frequency of small-area repairs on roads;

[0094] XC is the number of monthly repairs, YT is the number of days, and YT reflects the total number of days in the month;

[0095] L is the total length of the road;

[0096] S avg The average time for repair in a single day;

[0097] H is the number of working hours per day, which is set to 8 hours;

[0098] Average repair time per day S avg The calculation formula is as follows:

[0099] S avg =(S1+S2+S3+......+S xc ) / XC;

[0100] Monthly repair times XC reflects the total number of road repairs in the current month;

[0101] S1 is the time for the first road repair in a single day, S2 is the time for the second road repair in a single day, and S3 is the time for the third road repair in a single day. xc Patching roads for the first XC single day.

[0102] In this embodiment: First, in this algorithm unit The calculation part calculates the frequency of small-area repairs on the total length of road L. The calculation is calculated by dividing the small-area repair frequency XP by the square root of the total length of road L, which helps to evaluate the local impact of repair work on traffic delays. This calculation part is a key factor in quantifying the impact of road repair problems on traffic planning units, and is related to the average repair time per day S avg and the number of working hours per day H, that is, Together, the calculations determine the traffic delays caused by small road repairs;

[0103] This algorithm unit comprehensively introduces the total length of the road L, the frequency of small-area repair of the road XP, and the average repair time per day S avg and the number of working hours per day H, so that the unit for quantifying the impact of road repair problems on traffic planning can accurately calculate the traffic delays caused by small-area road repairs, thereby providing accurate delay data, which not only helps to understand the current traffic conditions, but also provides a predictive basis for future traffic planning;

[0104] Based on the evaluation results of the impact of road repair problems on traffic planning units, the repair strategy can be adjusted more scientifically. The repair time and the frequency of small-area road repairs can be reasonably arranged according to road conditions and traffic flow factors to reduce interference with traffic. At the same time, these data can also provide guidance for the allocation of repair resources to ensure the efficient implementation of repair work.

[0105] By reducing traffic delays caused by repairs, quantifying the impact of road repair issues on traffic planning can help improve the overall efficiency of urban traffic and reduce congestion.

[0106] See also Figures 1 to 4 , the calculation formula for evaluating the additional impact unit of population density on traffic is as follows:

[0107]

[0108] RM = RL / M;

[0109] CS = M / CM;

[0110] in:

[0111] DM is the delay seconds, which reflects the number of seconds that vehicles are delayed due to population density when the green light just comes on;

[0112] RM is the current population density;

[0113] RL is the current total number of people, which reflects the total number of people waiting to pass on both sides of the traffic light;

[0114] LD is the green light duration;

[0115] M is the total area, which reflects the total area of ​​the current road controlled by traffic lights;

[0116] CS is the maximum vehicle capacity, which reflects the total number of vehicles that can be parked and waiting for traffic lights within the total area M;

[0117] CM is the parking area occupied by a single vehicle. CM reflects the total area occupied by a single vehicle and the front and rear safe distances.

[0118] In this embodiment, first The calculation part considers the impact of the current population density RM and the maximum vehicle capacity CS at the traffic light on the vehicle delay when the green light just comes on. The larger the current population density RM, the longer the vehicle needs to wait. The smaller the maximum vehicle capacity CS, the fewer vehicles can pass immediately when the green light comes on, which will also lead to an increase in delay time. This part is multiplied by the traffic delay seconds JY of the unit that quantifies the impact of road repair problems on traffic planning, and is used to calculate the delay seconds DM caused by the population density and vehicle capacity at the traffic light.

[0119] The calculation part is extracted from the unit of quantifying the impact of road repair problems on traffic planning, and is used to reduce repeated calculations caused by repairs. It represents the delay time per kilometer of road per hour caused by repairs, which is the same as the calculation logic in the unit of quantifying the impact of road repair problems on traffic planning, but is used here as an adjustment item to be subtracted from the total delay time;

[0120] This algorithm unit evaluates the additional impact of population density on traffic. It not only introduces the population density RM and green light duration LD at the traffic light, but also introduces the total area M of the traffic light control area, the maximum vehicle capacity CS, and the additional delay adjustment item caused by road repair. This comprehensive consideration makes the evaluation result more accurate and reliable.

[0121] The evaluation results of the additional impact units of population density on traffic are conducive to scientifically adjusting the configuration of traffic lights and signal control strategies. Specifically, the traffic planning system reduces vehicle delay time and improves traffic smoothness by increasing the green light duration LD, optimizing the traffic light spacing, and improving traffic signal control strategies.

[0122] See also Figures 1 to 4 ,The calculation formula for quantifying the traffic accident frequency on the comprehensive traffic impact unit is as follows:

[0123]

[0124] in:

[0125] CH is the comprehensive impact of traffic accidents on traffic planning;

[0126] HC is the number of traffic accidents per year;

[0127] N is the total number of years the road is in use.

[0128] In this embodiment, the algorithm unit is first based on The calculation part is to add the delay seconds DM of the additional traffic impact unit of the current population density RM and the annual number of traffic accidents HC divided by the total road use years N to calculate the total impact caused by traffic light delays and traffic accidents, and to measure the comprehensive impact of traffic accidents and traffic light delays on traffic planning. The calculation part takes into account the proportion of all-day delays caused by road repairs. Since repair work is usually carried out during the day and takes a certain amount of time, it will cause traffic delays throughout the day. It represents the ratio of the total day delay time caused by repair to the delay time caused by each repair, making it more in line with the actual situation, and multiplying it by Get the combined impact after taking into account the full-day delay caused by repairs;

[0129] This algorithm unit comprehensively considers the annual number of traffic accidents HC, the total number of years of road use N, the delay caused by road repairs, and the delay time of traffic lights by quantifying the frequency of traffic accidents on the comprehensive traffic impact unit, providing a comprehensive evaluation basis for urban traffic planning, which helps to more comprehensively understand the effects and problems of traffic planning;

[0130] The evaluation results based on the quantified traffic accident frequency on the comprehensive traffic impact unit can help identify the weak links and potential risk points in traffic planning, including accident-prone sections and traffic congestion areas. These data provide a scientific basis and decision-making support for planning adjustments and optimizations. By optimizing traffic planning and reducing traffic accidents and traffic congestion, quantifying the traffic accident frequency on the comprehensive traffic impact unit can help improve the efficiency and safety of urban transportation and promote the sustainable development of cities.

[0131] For example 2, please refer to Figures 1 to 4 , based on the comprehensive impact value CH of traffic accidents on traffic planning, the trend is presented on the line chart, and the analysis of traffic planning is as follows:

[0132] If the comprehensive impact value of traffic accidents on traffic planning CH continues to rise on the linear graph within the month, it means that the traffic situation is deteriorating. The frequency of small-area road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC should be comprehensively evaluated to carry out a new round of multi-dimensional traffic planning.

[0133] If the comprehensive impact value CH of traffic accidents on traffic planning continues to decline and remain flat on the linear graph within the month, it means that the traffic situation is improving and tends to remain stable, and the current multi-dimensional traffic planning should be maintained;

[0134] Based on the continuous increase in the comprehensive impact value CH of traffic accidents on traffic planning in the month on the linear graph, the frequency of small road repairs XP, the number of delay seconds DM and the number of traffic accidents per year HC are evaluated and the multi-dimensional planning is as follows:

[0135] Frequency of small road area repairs XP

[0136] If the frequency of small-area repairs on the road XP continues to rise on the line graph, it indicates that there is a serious damage problem on the current traffic section, and the traffic planning system should remind to increase the repair efforts to reduce the frequency of small-area repairs on the road XP;

[0137] If the frequency of small-area road repair XP continues to decrease and remain flat on the linear graph, it indicates that the road quality of the current traffic section is good and maintenance of the current road section should be maintained;

[0138] Delay seconds DM

[0139] If the delay seconds DM continues to rise on the line graph, it means that the current population density RM is high and the green light duration LD is short. The traffic planning system should increase the green light duration LD for the current road section.

[0140] If the delay seconds DM continues to decrease and remain flat on the linear graph, it means that the current population density RM and the green light duration LD are in a balanced state, and the traffic planning system should maintain the green light duration LD for the current road section;

[0141] Number of traffic accidents per year HC

[0142] If the number of traffic accidents per year HC continues to rise on the line graph, it indicates that there are serious traffic accident problems on the current traffic section, and the traffic planning system should remind to increase patrols and traffic control to reduce the number of traffic accidents per year HC;

[0143] If the annual number of traffic accidents HC continues to decline and remain flat on the linear graph, it means that there are few traffic accident problems on the current traffic section, and the current patrol and traffic control efforts should be maintained.

[0144] In this embodiment, in the previous description, the quantification of the traffic accident frequency on the traffic comprehensive impact unit The item considers the adjustment of the impact of the frequency of small-area road repairs XP on the frequency of traffic accidents. This actually implies the feedback of the quantified traffic accident frequency on the comprehensive traffic impact unit to the quantified road repair problem on the traffic planning impact unit. However, this feedback is indirect and is not directly reflected in the update and adjustment of the quantified road repair problem on the traffic planning impact unit. The following is a more intuitive reflection of this feedback. In practical applications, after calculating the comprehensive impact value CH of traffic accidents on traffic planning through the quantified traffic accident frequency on the comprehensive traffic impact unit, the effect of the current traffic planning can be evaluated based on the changing trend of the comprehensive impact value CH of traffic accidents on traffic planning on the linear graph.

[0145] Specifically, the comprehensive impact value CH of traffic accidents on traffic planning continues to rise, which means that the traffic situation is deteriorating. At this time, it is necessary to further analyze the reasons for the increase in the comprehensive impact value CH of traffic accidents on traffic planning. Since the comprehensive impact value CH of traffic accidents on traffic planning is jointly determined by the factors of small area repair frequency XP of roads, delay seconds DM and the number of traffic accidents per year HC, the root cause of the problem can be found by examining the changes of these factors respectively.

[0146] In particular, if the delay seconds DM rises sharply within a month, it indicates that the population density at the traffic light is too high and the green light duration LD is set unreasonably. In order to alleviate this situation, the traffic planning system can consider adjusting the timing of the traffic lights, specifically increasing the green light duration LD and reducing the red light duration to better adapt to the changes in traffic flow. At the same time, it can also consider adjusting the pedestrian crossing time accordingly to ensure the traffic efficiency of pedestrians and vehicles.

[0147] In addition, if the frequency of small-area road repairs XP rises sharply within a month, it means that there are many problems with the current road and the damage is serious. At this time, the traffic planning system needs to strengthen the inspection and maintenance of the road, and promptly discover and repair the damaged parts of the road to reduce delays and impacts on traffic;

[0148] It is worth noting that the application of linear graphs is to more intuitively reflect the effects and changing trends of traffic planning. Through linear graphs, the changing trends of indicators such as the comprehensive impact of traffic accidents on traffic planning CH, the frequency of small road repairs XP, the number of delays DM, and the number of traffic accidents per year HC are displayed. The traffic planning system can more intuitively understand the effects and existing problems of traffic planning, and formulate corresponding improvement measures and adjustment plans accordingly.

[0149] In addition, the loop feedback mechanism of this embodiment allows the traffic planning system to dynamically adjust the traffic planning according to real-time data. Specifically, when it is found that the delay seconds DM value increases, the traffic planning system can timely adjust the timing plan of the traffic lights to adapt to the changes in traffic flow. Similarly, when the road small area repair frequency XP value increases, the traffic planning system can strengthen the inspection and maintenance of the road, and timely discover and repair the damaged parts of the road. Through the loop feedback mechanism, the traffic planning system can more reasonably allocate traffic management resources. At the same time, the traffic planning system can also optimize the layout and configuration of traffic facilities according to the changes in traffic flow, improve the traffic capacity and safety of the road, and the loop feedback mechanism makes traffic planning more flexible and efficient. By real-time monitoring and analyzing the changing trends of key indicators, the traffic planning system can timely discover and correct deficiencies and deviations in the planning, which not only helps to improve the scientificity and rationality of traffic planning, but also effectively reduce the economic losses and social impacts caused by traffic congestion and traffic accidents.

[0150] In summary, the comprehensive evaluation and loop feedback mechanism and the method of using line graphs for feedback have significant beneficial effects in transportation planning. They not only help the transportation planning system to accurately locate the root causes of problems, dynamically adjust transportation planning, optimize resource allocation and improve transportation planning efficiency, but also can intuitively reflect changing trends, support decision-making and enhance public participation. Therefore, in transportation planning practice, the transportation planning system should make full use of these methods and tools to continuously improve the scientificity and rationality of multi-dimensional integrated transportation planning.

[0151] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-dimensional fusion method for urban traffic planning, characterized in that: The specific implementation steps are as follows: Step I: using the data collection module of the traffic planning system to collect the current traffic planning related traffic data and historical traffic data in real time; Step II, using the evaluation calculation module, sequentially calculate and output the traffic delay seconds JY, the delay seconds DM, and the comprehensive impact value CH of the traffic accident on the traffic planning, which have correlation effects with each other; Step III: Use the visualization analysis module to evaluate the trend of the comprehensive impact value CH of traffic accidents on traffic planning in the line graph; Step III: Based on the trend evaluation of the comprehensive impact value CH of traffic accidents on traffic planning on the linear graph, conduct a comprehensive evaluation of the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC, and a new round of multi-dimensional traffic planning; The evaluation and calculation module includes a unit for quantifying the impact of road repair problems on traffic planning, a unit for evaluating the additional impact of population density on traffic, and a unit for quantifying the comprehensive impact of traffic accidents on traffic.

2. The multi-dimensional fusion method for urban traffic planning according to claim 1 is characterized in that: The equipment used by the data acquisition module includes a data acquisition device, which includes a camera, a sensor, and a traffic flow monitor. The data acquisition module is used to collect traffic data; The equipment used by the evaluation and calculation module includes computing equipment, which includes servers and workstations. The evaluation and calculation module is used to run calculations and evaluations; The equipment used by the visualization analysis module includes visualization equipment, which includes a large-screen display and a touch screen. The visualization analysis module is used to display line graphs and multi-dimensional traffic planning results.

3. The multi-dimensional fusion method for urban traffic planning according to claim 2 is characterized by: The calculation formula for quantifying the impact of road repair problems on traffic planning is as follows: XP = XC / YT; in: JY is the traffic delay in seconds; XP is the frequency of small-area repairs on roads; XC is the number of monthly repairs, YT is the number of days, and YT reflects the total number of days in the month; L is the total length of the road; S avg The average time for repair in a single day; H is the number of working hours per day, which is set to 8 hours.

4. The multi-dimensional fusion method for urban traffic planning according to claim 3 is characterized by: The average repair time per day S avg The calculation formula is as follows: S avg =(S1+S2+S3+......+S xc ) / XC; Monthly repair times XC reflects the total number of road repairs in the current month; S1 is the time for the first road repair in a single day, S2 is the time for the second road repair in a single day, and S3 is the time for the third road repair in a single day. xc Patching roads for the first XC single day.

5. The multi-dimensional fusion method for urban traffic planning according to claim 4 is characterized by: The calculation formula for evaluating the additional impact unit of population density on traffic is as follows: RM = RL / M; CS = M / CM; in: DM is the delay seconds, which reflects the number of seconds that vehicles are delayed due to population density when the green light just comes on; RM is the current population density; RL is the current total number of people, which reflects the total number of people waiting to pass on both sides of the traffic light; LD is the green light duration; M is the total area, which reflects the total area of ​​the current road controlled by traffic lights; CS is the maximum vehicle capacity, which reflects the total number of vehicles that can be parked and waiting for traffic lights within the total area M; CM is the parking area occupied by a single vehicle. CM reflects the total area occupied by a single vehicle and the front and rear safe distances.

6. The multi-dimensional fusion method for urban traffic planning according to claim 5 is characterized by: The calculation formula for quantifying the traffic accident frequency on the comprehensive traffic impact unit is as follows: in: CH is the comprehensive impact of traffic accidents on traffic planning; HC is the number of traffic accidents per year; N is the total number of years the road is in use.

7. The multi-dimensional fusion method for urban traffic planning according to claim 6 is characterized by: Based on the comprehensive impact value CH of the traffic accident on traffic planning, the trend is presented on the line chart, and the analysis of traffic planning is as follows: If the comprehensive impact value of traffic accidents on traffic planning CH continues to rise on the linear graph within the month, it means that the traffic situation is deteriorating. The frequency of small-area road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC should be comprehensively evaluated to carry out a new round of multi-dimensional traffic planning. If the comprehensive impact value CH of traffic accidents on traffic planning continues to decline and remain flat on the linear graph within the month, it means that the traffic conditions are improving and tend to remain stable, and the current multi-dimensional traffic planning should be maintained.

8. The multi-dimensional fusion method for urban traffic planning according to claim 7 is characterized by: Based on the continuous increase in the comprehensive impact value CH of traffic accidents on traffic planning in the month on the linear graph, the frequency of small road repairs XP, the number of delay seconds DM and the number of traffic accidents per year HC are evaluated and the multi-dimensional planning based on this is as follows: Frequency of small road area repairs XP If the frequency of small-area repairs on the road XP continues to rise on the line graph, it indicates that there is a serious damage problem on the current traffic section, and the traffic planning system should remind to increase the repair efforts to reduce the frequency of small-area repairs on the road XP; If the frequency of small-area road repair XP continues to decrease and remain flat on the linear graph, it indicates that the road quality of the current traffic section is good and maintenance of the current road section should be maintained; Delay seconds DM If the delay seconds DM continues to rise on the line graph, it means that the current population density RM is high and the green light duration LD is short. The traffic planning system should increase the green light duration LD for the current road section. If the delay seconds DM continues to decrease and remain flat on the linear graph, it means that the current population density RM and the green light duration LD are in a balanced state, and the traffic planning system should maintain the green light duration LD for the current road section; Number of traffic accidents per year HC If the number of traffic accidents per year HC continues to rise on the line graph, it indicates that there are serious traffic accident problems on the current traffic section, and the traffic planning system should remind to increase patrols and traffic control to reduce the number of traffic accidents per year HC; If the annual number of traffic accidents HC continues to decline and remain flat on the linear graph, it means that there are few traffic accident problems on the current traffic section, and the current patrol and traffic control efforts should be maintained.

9. A multidimensional fusion system for implementing the multidimensional fusion method for urban traffic planning as claimed in claim 1, characterized in that: Including data acquisition module, evaluation calculation module, and visual analysis module; The data collection module is used to collect traffic data; The evaluation and calculation module includes a unit for quantifying the impact of road repair problems on traffic planning, a unit for evaluating the additional impact of population density on traffic, and a unit for quantifying the comprehensive impact of traffic accidents on traffic; The visualization analysis module is used to evaluate and present the comprehensive impact value CH of traffic accidents on traffic planning, the frequency of small road repairs XP, the number of delay seconds DM, and the number of traffic accidents per year HC calculated and output by the evaluation and calculation module on a linear graph.

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