CN103456180A - Signal control system and signal control method based on traffic simulation - Google Patents
Signal control system and signal control method based on traffic simulation Download PDFInfo
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Abstract
The invention relates to a signal control system and signal control method based on traffic simulation. The signal control system comprises a data acquisition module, a simulation and forecast merging module, an intelligent traffic signal lamp control module and a traffic guidance module. The data acquired by a last intersection acquisition module are sent to the simulation and forecast merging module, the traffic flow data of a current intersection and the data acquired at the last intersection are sent to the intelligent traffic signal lamp control module to carry out self-adaptation traffic control, accordingly, a detector set at the current intersection is replaced, half detectors in a road section can be replaced and removed, the purchasing and maintaining cost are greatly saved, the intersections of upstream and downstream are corelated, the signal timing dial is uniformly coordinated and adjusted, the intercommunication of a road network is enhanced, a scheme capable of improving the traffic capacity of the road section can be designed, and the problem of traffic jam in cities at present can be relieved.
Description
Technical field
The invention belongs to traffic signals controls and traffic signals simulation technical field, specifically a kind of whistle control system and method based on traffic simulation.
Background technology
Urban traffic signal is controlled the purpose of distributing and induce to reach raising road passage capability, traffic safety and road utilization rate by the adjusting to traffic flow, right of way.Its essence is to improve the quality of traffic flow, better utilizes existing infrastructure, alleviates traffic congestion, improves traffic flow rapidity and comfortableness.
The traffic control system existed at present can be divided into timing controlled, induction is controlled and three kinds of adaptive controls.Wherein adaptive control refers in a main line or a zone, change and automatically adjust the signal controlling parameter according to the dynamic random of traffic flow, make control system automatically adapt to the random variation of traffic flow, this control mode has intelligence, efficient characteristics, has better application future.
The self-adapting traffic signal control system all needs to install in crossing in advance the traffic detecting device, carries out data acquisition, and the detecting device that China is used on a large scale is the Data mining device.At first, because the Data mining device need to be embedded in undergroundly, can record by vehicle number, the speed of a motor vehicle, by some basic datas such as times.The purchase of detecting device and maintenance need to expend a large amount of time and moneys, and the embedding place of detecting device easily causes that road surface is sagging, this is a bottleneck to adaptive traffic control system, is difficult to reach the effect of Based Intelligent Control, and makes the urban transportation cost greatly increase.Secondly, most domestic urban road crossing traffic control at present is substantially all that single-point is controlled, and only self-adapting traffic signal control is carried out in a crossing, seldom considers the relevance between adjacent intersection, when this makes some crossing traffic smoothnesses, but cause the traffic congestion at other crossing.
In addition, along with the development of computer simulation technique, the traffic simulation technology is also increasingly mature, and this just makes the possibility of introducing traffic simulation software in intersection signal is controlled greatly increase.Can reappear the variation of traffic flow space-time by simulation software, for traffic design provides technical basis.
For this reason, China's CN101789182A patent of invention has been announced a kind of traffic signal control system and method based on parallel simulation technique, this system comprises following 5 modules: data acquisition module is responsible for Real-time Collection crossing information of vehicle flowrate, and information is sent to data processing module; Described data acquisition module comprises detecting device and data transmission unit, and wherein detecting device is embedded in the signal cross crossing; Data processing module calculates traffic flow data according to these information, sets up the signalized intersections data dictionary; Apply the method for cluster analysis simultaneously, determine flow section division threshold value; Algorithm adaptability off-line analysis module is carried out Adaptability Analysis for various control algolithms, sets up the control algolithm matching rule base; Algorithm on-line selection module, according to the real-time traffic stream information, is selected suitable signal controlling algorithm according to matching rule base; The teleseme execution module is according to the enforcement of the control algolithm settling signal control program of selecting.Whistle control system provided by the invention, realized the on-line selection of control algolithm, solved the problem of imitation and control derailing, has the characteristics that extensibility is strong simultaneously.
But due to this invention employing is parallel simulation, need to detecting device be set at each crossing, if this invention is installed in big city, may need up to ten thousand or more detecting device, cause cost huge, so but need a kind of cost-saving whistle control system and the method that can obtain better effect of energy.
Summary of the invention
Thereby technical matters to be solved by this invention is need to detecting device be set at each crossing in prior art to cause cost huge, the problem that efficiency is not high, thus a kind of half and the whistle control system based on traffic simulation and the method that can raise the efficiency of detector number being reduced is provided.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of whistle control system based on traffic simulation comprises:
Data acquisition module, it comprises the traffic detecting device that is disposed on traffic intersection, for capture setting the traffic data at crossing of traffic detecting device, as basic traffic data;
Emulation and prediction Fusion Module, its input end connects the output terminal of described data acquisition module, comprise analytic unit, simulation unit and predicting unit, described analytic unit is connected with described data acquisition module, receive the basic traffic data at a upper crossing of acquisition module collection, the real time data detected is integrated to statistics, obtain the car flow information at a upper crossing; Be provided with realistic model in described simulation unit, the car flow information at upper crossing input realistic model obtained to the emulation traffic data at current crossing; The emulation traffic data that described predicting unit obtains according to described realistic model simulation, assessed the whole traffic at current crossing, and doped corresponding alternative signal timing scheme;
The intelligent traffic lamp control module, its input end is connected with the output terminal of emulation and prediction Fusion Module with described data acquisition module respectively, according to described basic traffic data, emulation traffic data and alternative signal timing scheme, carries out the self-adapting traffic signal processing.
Described simulation unit comprises FLOWSIM software, set in advance the road simulation model at crossing in described FLOWSIM software, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing.
Also comprise the traffic guidance module, its input end connects the output terminal of described intelligent traffic lamp control module.
Also comprise the interface compatible with SCOOT, SCATS, can with its compatibility.
Whistle control system based on traffic simulation moves according to following methods:
A. data acquisition
Gather basic traffic data by the described traffic annular detector that is arranged on crossing;
B. emulation and prediction
Described analytic unit receives the basic traffic data at a upper crossing of acquisition module collection, the real time data detected is integrated to statistics, obtain the car flow information at a upper crossing, described simulation unit obtains the car flow information at a upper crossing input realistic model emulation traffic data at current crossing, the emulation traffic data that described predicting unit obtains according to described realistic model simulation, whole traffic to current crossing is assessed, then dope corresponding alternative signal timing scheme, be sent to the intelligent traffic lamp control module;
C. signal controlling
The real-time basic traffic data of described traffic annular detector collection is inputted described intelligent traffic lamp control module with the emulation traffic data of described emulation and the processing of prediction Fusion Module together with alternative signal timing scheme, and described intelligent traffic lamp control module processes to control each crossroad traffic signal lamp by data are carried out to self-adapting traffic signal.
The process of emulation traffic data that described simulation unit obtains the car flow information at upper crossing input realistic model at current crossing is as follows:
Set in advance the road simulation model at crossing in FLOWSIM software in described simulation unit, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing, and automatically add up the magnitude of traffic flow, speed and queue length parameter and derived data is stored.
Described signal control method also comprises the step of carrying out traffic guidance, the data that described traffic guidance module obtains by described intelligent traffic lamp control module are carried out traffic guidance near crossing vehicle, by wireless station, GSM mobile phone network, the CDMA2000 communication technology, the WCDMA communication technology, the TD-SCDMA communication technology, the WIMAX communication technology, road conditions display screen towards periphery the user send guidance information.
Described intelligent traffic signal control module comprises a kind of emergency mode, when emergency vehicle passes through crossing, controls traffic lights it is passed through as early as possible.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) whistle control system based on traffic simulation of the present invention comprises data acquisition module, emulation and prediction Fusion Module and intelligent traffic lamp control module, the traffic detecting device is disposed on traffic intersection, be sent to emulation and predict that Fusion Module carries out emulation and prediction by the data by a upper crossing detecting device, draw again the Simulation Traffic Flow data at current crossing, cancelled the setting of current crossing detecting device, like this by crossing, spaced traffic detecting device just can obtain the traffic data at whole crossings, can save the detecting device that substitutes in highway section half, purchase and maintenance cost have greatly been saved, and the precision of simulation software can reach more than 90%, even all high than the accuracy of existing detecting device, secondly, simulation software can draw the supplemental characteristics such as some magnitudes of traffic flow, speed and queue length, for the design of traffic control scheme provides abundant data.
(2) whistle control system and the method based on traffic simulation of the present invention, by FLOWSIM software emulation software, that the upstream and downstream crossing is interrelated, by the unified adjustment signal timing dial of coordinating of intelligent traffic lamp control module, increased the connectedness of road network, the scheme that the highway section of sening as an envoy to has the higher traffic capacity can be designed, the traffic jam issue in present city can be alleviated.
(3) data that described in whistle control system based on traffic simulation of the present invention and method, the traffic guidance module obtains by described intelligent traffic lamp control module are carried out traffic guidance near crossing vehicle, can by wireless station, GSM mobile phone network, the CDMA2000 communication technology, the WCDMA communication technology, the TD-SCDMA communication technology, the WIMAX communication technology, road conditions display screen towards periphery the user send guidance information, more in real time efficiently towards periphery the user send transport information, coordination road conditions that can be whole, avoid the generation of road congestion.
(4) whistle control system and the method based on traffic simulation of the present invention, described intelligent traffic signal control module comprises a kind of emergency mode, when emergency vehicle passes through crossing, controlling traffic lights passes through it as early as possible, when running into emergency case and need to promptly pass through as ambulance, police car, national important vehicle or some other important vehicles, this emergency mode can well be tackled, and avoids important vehicle to be blocked up, and causes heavy losses or injures and deaths.
The accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein;
Fig. 1 is whistle control system based on traffic simulation of the present invention and the process flow diagram of method;
Fig. 2 is whistle control system based on traffic simulation of the present invention and the circuit diagram of the intelligent transportation lamp control module in method.
Embodiment
Whistle control system based on traffic simulation of the present invention and the embodiment of method below are provided.
embodiment 1
Whistle control system and method based on traffic simulation of the present invention comprises data acquisition module, emulation and prediction Fusion Module, intelligent traffic lamp control module, as shown in Figure 1; Data acquisition module comprises the traffic detecting device that is disposed on traffic intersection, for capture setting the traffic data at crossing of traffic detecting device, as basic traffic data; Emulation and prediction Fusion Module: comprise analytic unit, simulation unit and predicting unit, described analytic unit is connected with described data acquisition module, receive the basic traffic data at a upper crossing of acquisition module collection, the real time data detected is integrated to statistics, in order to obtain the car flow information at a upper crossing; Be provided with realistic model in described simulation unit, the car flow information at upper crossing input realistic model obtained to the emulation traffic data at current crossing; Described predicting unit, according to described realistic model simulation gained emulation traffic data, is assessed the whole traffic at current crossing, and is doped corresponding alternative signal timing scheme, is sent to the intelligent traffic lamp control module.
The intelligent traffic lamp control module, its circuit diagram as shown in Figure 2: according to described basic traffic data, emulation traffic data and alternative signal timing scheme, carry out self-adapting traffic signal and process to control traffic lights.
The present invention replaces the detecting device at current crossing by the data of predicting current crossing, can save the detecting device that substitutes in highway section half, greatly saved purchase and maintenance cost, and the precision of simulation software can reach more than 90%, even all high than the accuracy of existing detecting device.
embodiment 2
On the basis of enforcement 1, described simulation unit preferably includes the FLOWSIM simulation softward, set in advance the road simulation model at crossing in described FLOWSIM software, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing.
The English full name of described FLOWSIM simulation softward is: Fuzzy Logic based Road Way Traffic Simulation Model, its theoretical foundation a set of Microscopic Traffic Simulation Mathematic Model that to be the Southampton University of Southampton transportation institute set up based on fuzzy mathematics theory, model He Bing road, the car-following model ,Huan road model that it utilizes fuzzy mathematics theory to set up to embody the intrinsic driving behavior of various drivers.At present this team has moved to Beijing, and the FLOWSIM model is at Chinese software, and exploitation is to 3.0 versions.And this software completed model calibration and verification in China, be the data module that unique a road condition data based on China is set up, be more suitable for the traffic environment of China, than be more suitable for the needs in each city of China with some simulation softwares abroad.
FLOWSIM inside is mainly the fuzzy mathematics algorithm, by realizing the processing of measured data is obtained the membership function of fuzzy model.Mainly contain two interfaces of upstream and downstream, the car number that the upper crossing detecting device of Upstream Interface input records, the speed of a motor vehicle and vehicle time of arrival; Downstream interface is to this intersection annunciator rack output work queue's length or lane occupancy ratio, all by wire transmission.The geometric model at this crossing needs in FLOWSIM, to build up in advance, and trigger model after the Upstream Interface access data starts analogue simulation, and exports result to downstream interface.
Described intelligent traffic lamp control module is preferably selected to realize by embedded system, as shown in Figure 2, this module preferably comprises that microcontroller, input switch matrix, serial communication interface, mobile communication interface, real-time clock 1307, clock circuit, relay drive ULN2003, LED interface circuit etc. to its circuit diagram; The miniature control chip AT89c51 of take realizes CONTROLLER DESIGN as example, and core is microcontroller chip AT89c51, adopts extra port to be connected external signal with multiplexer, in addition, adopts RAM and ROM storage system program and application program.Emulation and prediction Fusion Module output data are as the input signal of input switching circuit, input signal need change digital signal pattern into, mean the arrival of vehicle or leave away, and as the control inputs of microcontroller, judge the vehicle queue length in each track for microcontroller according to input, with this, input to pass judgment on the optimization signal timing dial.In order to reach the stand-by period minimum, microcontroller will calculate belisha beacon and open and close the time, and drive for relay, and the relay driver output will be for the red, green, yellow LED lamp holder at each crossing.IC 24C61 is for the I2C interface, and each teleseme arranges a LCD display, and the LCD screen is only prototype pattern, and it is also how long surplus that LCD display becomes green time by displaing lamp; Microcontroller can adopt assembly language to realize, importation, relay driving, LCD demonstration, mobile communication interface etc. write chip as stand-alone program; All procedure sets are formed in the system main logic, and this will determine the timing interval at each crossing.
embodiment 3
Also comprise the traffic guidance module on the basis of embodiment 1, the data that described traffic guidance module obtains by described intelligent traffic lamp control module are carried out traffic guidance near crossing vehicle, preferred employing GSM mobile phone network user towards periphery sends guidance information, more in real time efficiently towards periphery the user send transport information, coordination road conditions that can be whole, avoid the generation of road congestion.
The embodiment that can convert as other, described traffic guidance module can also send guidance information to the user by wireless station, the CDMA2000 communication technology, the WCDMA communication technology, the TD-SCDMA communication technology, the WIMAX communication technology, road conditions display screen.
embodiment 4
Whistle control system based on traffic simulation of the present invention also comprises the interface compatible with SCOOT, SCATS, can with its compatibility; SCOOT (Split, Cycle and Offset Optimization Technique) results from the Britain of the seventies, a kind of real-time adaptive control system by Britain's transportation with road research institute (TRRL) development; SCATS: Sydney self-adaptation traffic control system (Sydney Coordinated Adaptive Traffic System), by New South Wales,Australia road traffic office (RTA) research and development, it is one of city signal traffic control system of current rare several advanced persons in the world; These two kinds of softwares are widely used in each big city of China, so when the urban road to adopting SCOOT, SCATS is improved, the compatibility interface that the present invention adopts can be saved the material that much repeats to install waste, can on more original infrastructure, be reequiped, environmental protection uses manpower and material resources sparingly again.
embodiment 5
Signal control method based on traffic simulation of the present invention moves according to following methods:
A. data acquisition
Gather basic traffic data by the described traffic annular detector that is arranged on crossing;
B. emulation and prediction
Described analytic unit receives the described basic traffic data at a upper crossing of acquisition module collection, and the real time data detected is integrated to statistics, obtains the car flow information at a upper crossing, set in advance the road simulation model at crossing in described FLOWSIM software in described simulation unit, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing, and automatically add up the magnitude of traffic flow, speed and queue length parameter derived data are stored, for the design of traffic control scheme provides abundant data, the emulation traffic data that described predicting unit obtains according to described realistic model simulation, assessed the whole traffic at current crossing, then dopes corresponding alternative signal timing scheme, is sent to the intelligent traffic lamp control module,
C. signal controlling
The emulation traffic data that the real-time basic traffic data of described traffic annular detector collection, described emulation and prediction Fusion Module are processed is inputted described intelligent traffic lamp control module together with alternative signal timing scheme, and described intelligent traffic lamp control module processes to control each crossroad traffic signal lamp by data are carried out to self-adapting traffic signal.
In emulation and prediction steps, can also by the virtual detector that arranges in FLOWSIM software to highway section in next position, crossing detected, virtual detector is to carry function in software, can simulate the coil checker on real road, according to a upper crossing traffic information, emulation is carried out in this crossing and next crossing, then by the virtual detecting device that is arranged on next crossing, the traffic conditions in simulation process is detected and image data.So just can access speed, data on flows in simulated scenario, afterwards these data are sent to next crossing.
embodiment 6
Described signal control method also comprises the process of carrying out traffic guidance, the data that described traffic guidance module obtains by described intelligent traffic lamp control module are carried out traffic guidance near crossing vehicle, by wireless station, GSM mobile phone network, the CDMA2000 communication technology, the WCDMA communication technology, the TD-SCDMA communication technology, the WIMAX communication technology, road conditions display screen towards periphery the user send guidance information.
Described intelligent traffic signal control module comprises a kind of emergency mode, when emergency vehicle passes through crossing, controlling traffic lights passes through it as early as possible, when running into emergency case and need to promptly pass through as ambulance, police car, national important vehicle or some other important vehicles, described intelligent traffic signal control module starts this emergency mode, control is green light along road traffic lights belisha beacon when emergency vehicle passes through each crossing, guarantee that emergency vehicle passes through as soon as possible, avoid important vehicle to be blocked up, avoid causing heavy losses or injures and deaths.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (8)
1. the whistle control system based on traffic simulation, is characterized in that, comprising:
Data acquisition module, it comprises the traffic detecting device that is disposed on traffic intersection, for capture setting the traffic data at crossing of traffic detecting device, as basic traffic data;
Emulation and prediction Fusion Module, its input end connects the output terminal of described data acquisition module, comprise analytic unit, simulation unit and predicting unit, described analytic unit is connected with described data acquisition module, receive the basic traffic data at a upper crossing of acquisition module collection, the real time data detected is integrated to statistics, obtain the car flow information at a upper crossing; Be provided with realistic model in described simulation unit, the car flow information at upper crossing input realistic model obtained to the emulation traffic data at current crossing; The emulation traffic data that described predicting unit obtains according to described realistic model simulation, assessed the whole traffic at current crossing, and doped corresponding alternative signal timing scheme;
The intelligent traffic lamp control module, its input end is connected with the output terminal of emulation and prediction Fusion Module with described data acquisition module respectively, according to described basic traffic data, emulation traffic data and alternative signal timing scheme, carries out the self-adapting traffic signal processing.
2. the whistle control system based on traffic simulation according to claim 1, it is characterized in that: described simulation unit comprises FLOWSIM software, set in advance the road simulation model at crossing in described FLOWSIM software, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing.
3. the whistle control system based on traffic simulation according to claim 1 and 2, it is characterized in that: also comprise the traffic guidance module, its input end connects the output terminal of described intelligent traffic lamp control module.
4. according to claim 1 or the 2 or 3 described whistle control systems based on traffic simulation, it is characterized in that: also comprise the interface compatible with SCOOT, SCATS, can with its compatibility.
5. the signal control method based on traffic simulation, it is characterized in that: claim 1 or 2 or the 3 or 4 described whistle control systems based on traffic simulation move according to following methods:
A. data acquisition
Gather basic traffic data by the described traffic annular detector that is arranged on crossing;
B. emulation and prediction
Described analytic unit receives the basic traffic data at a upper crossing of acquisition module collection; the real time data detected is integrated to statistics; obtain the car flow information at a upper crossing; described simulation unit obtains the car flow information at a upper crossing input realistic model emulation traffic data at current crossing; the emulation traffic data that described predicting unit obtains according to described realistic model simulation; whole traffic to current crossing is assessed; then dope corresponding alternative signal timing scheme, be sent to the intelligent traffic lamp control module;
C. signal controlling
The real-time basic traffic data of described traffic annular detector collection is inputted described intelligent traffic lamp control module with the emulation traffic data of described emulation and the processing of prediction Fusion Module together with alternative signal timing scheme, and described intelligent traffic lamp control module processes to control each crossroad traffic signal lamp by data are carried out to self-adapting traffic signal.
6. want the 5 described signal control methods based on traffic simulation according to right, it is characterized in that: the process of emulation traffic data that described simulation unit obtains the car flow information at upper crossing input realistic model at current crossing is as follows:
Set in advance the road simulation model at crossing in FLOWSIM software in described simulation unit, and according to the car flow information at the upper crossing obtained as the wagon flow parameter in described road simulation model, then analog simulation Vehicular behavior, set up vehicle follow gallop model He Huan road model based on principles of fuzzy mathematics, simulating reality crossing motor vehicle ruuning situation in computing machine, obtain the emulation traffic data at current crossing, and automatically add up the magnitude of traffic flow, speed and queue length parameter and derived data is stored.
7. want the 5 described signal control methods based on traffic simulation according to right, it is characterized in that: described signal control method also comprises the step of carrying out traffic guidance, the data that described traffic guidance module obtains by described intelligent traffic lamp control module are carried out traffic guidance near crossing vehicle, by wireless station, GSM mobile phone network, the CDMA2000 communication technology, the WCDMA communication technology, the TD-SCDMA communication technology, the WIMAX communication technology, road conditions display screen towards periphery the user send guidance information.
8. want the 5 or 6 described signal control methods based on traffic simulation according to right, it is characterized in that: described intelligent traffic signal control module comprises a kind of emergency mode, when emergency vehicle passes through crossing, controls traffic lights it is passed through as early as possible.
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| CN110349407B (en) * | 2019-07-08 | 2021-08-13 | 长安大学 | Regional traffic signal lamp control system and method based on deep learning |
| CN110349407A (en) * | 2019-07-08 | 2019-10-18 | 长安大学 | A kind of compartmentalization traffic light control system and method based on deep learning |
| CN111047889A (en) * | 2019-12-31 | 2020-04-21 | 蒋宗霞 | High portable traffic signal lamp of stability |
| CN111047889B (en) * | 2019-12-31 | 2021-06-01 | 江苏天煌照明集团有限公司 | High portable traffic signal lamp of stability |
| CN111553043A (en) * | 2020-05-19 | 2020-08-18 | 北京百度网讯科技有限公司 | Traffic index calculation model test method, traffic simulation method and device |
| CN111553043B (en) * | 2020-05-19 | 2023-09-26 | 北京百度网讯科技有限公司 | Traffic index calculation model test method, traffic simulation method and device |
| CN111710167A (en) * | 2020-08-24 | 2020-09-25 | 深圳市城市交通规划设计研究中心股份有限公司 | Single-point optimization control method and device based on online traffic simulation |
| CN112185112A (en) * | 2020-09-24 | 2021-01-05 | 雷皓然 | Traffic management method, equipment and system based on artificial intelligence |
| CN114141013A (en) * | 2021-11-25 | 2022-03-04 | 东南大学 | Intersection signal timing method based on low-permeability network connection track data |
| CN114141013B (en) * | 2021-11-25 | 2022-12-13 | 东南大学 | Intersection signal timing method based on low-permeability network connection track data |
| CN114419896A (en) * | 2022-03-29 | 2022-04-29 | 海尔数字科技(青岛)有限公司 | Traffic signal lamp control method, device, equipment and medium based on digital twins |
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