CN107293132A - Intersections timing design method based on traffic delay - Google Patents
Intersections timing design method based on traffic delay Download PDFInfo
- Publication number
- CN107293132A CN107293132A CN201710693392.8A CN201710693392A CN107293132A CN 107293132 A CN107293132 A CN 107293132A CN 201710693392 A CN201710693392 A CN 201710693392A CN 107293132 A CN107293132 A CN 107293132A
- Authority
- CN
- China
- Prior art keywords
- road network
- gps location
- location data
- intersections
- traffic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a kind of Intersections timing design method based on traffic delay, the step of method in contain：(a) obtain at least includes in the initial data of the road network in defined area, initial data：The physical dimension of each bar road in road network, the main wagon flow flow direction in road network, the wagon flow flow in road network in the VELOCITY DISTRIBUTION of vehicle, road network in each main wagon flow flow direction；(b) Traffic Flow Simulation Models are set up using VISSIM softwares；(c) by adjusting Intersections timing scheme in the input parameter of Traffic Flow Simulation Models, each output parameter under different Intersections timing schemes is obtained；(d) the traffic delay numerical value in output parameter determines optimal Intersections timing scheme.The present invention can analyze optimal Intersections timing scheme, so as at utmost play the traffic capacity of intersection, reduce the loss of regional signal lamp, improve the operational efficiency of intersection vehicles.
Description
Technical field
The present invention relates to a kind of Intersections timing design method based on traffic delay.
Background technology
At present, urban road intersection is traffic important node, and it is to alleviate city that intersection capacity is excavated to greatest extent
One of solution of city's traffic congestion, wherein it is emphasis to optimize Intersections configuration, urban traffic blocking mainly collects
In in function concentrated area, such as important Commercial joint, school and hospital should carry out emphasis solution, present situation letter to this kind of region
Signal lamp controls main application to be the green ripple control of intelligent control and certain road line style of individual node, it is impossible to solve area road letter
Signal lamp entirety timing is optimal.By survey region signal lamp control system, intersection capacity can be at utmost played, is subtracted
Few regional signal lamp loss, improves intersection vehicles operational efficiency.
The content of the invention
The technical problems to be solved by the invention are to overcome the defect of prior art there is provided a kind of friendship based on traffic delay
Prong traffic signal timing design method, it can analyze optimal Intersections timing scheme, so as at utmost send out
The traffic capacity of intersection is waved, the loss of regional signal lamp is reduced, improves the operational efficiency of intersection vehicles.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of intersection signal based on traffic delay
Contain in the step of lamp timing design method, method：
(a) obtain at least includes in the initial data of the road network in defined area, initial data：Each bar in road network
In main wagon flow flow direction, road network in the physical dimension of road and each intersection, road network in the VELOCITY DISTRIBUTION of vehicle, road network
Wagon flow flow in each main wagon flow flow direction；
(b) Traffic Flow Simulation Models are set up using VISSIM softwares, the foundation of simulation model includes three aspects：
(b1) road network in the defined area of simulation is created；
(b2) input parameter is determined：Input parameter includes main wagon flow flow direction, each main wagon flow in road network in road network
Traffic in wagon flow flow, road network in flow direction in VELOCITY DISTRIBUTION, Intersections timing scheme and the road network of vehicle
Constitute；
(b3) output parameter is determined：Output parameter includes the vehicular traffic delay in each main wagon flow flow direction；
(c) by adjusting Intersections timing scheme in the input parameter of Traffic Flow Simulation Models, different friendships are obtained
Each output parameter under prong traffic signal timing scheme；
(d) optimal Intersections timing scheme is determined；Wherein, optimal Intersections timing scheme correspondence
Output parameter in, vehicular traffic delay numerical value it is minimum.
Further, on the one hand in order to have individual benchmark when adjusting Intersections timing scheme, so that when reducing adjustment
Between, on the other hand adjusted on the spot in order to convenient after optimal Intersections timing scheme is obtained, in described step
(a) in, also include in the initial data of acquisition：Present situation Intersections timing scheme；Between step (b) and step (c)
Also include：The Traffic Flow Simulation Models set up by step (b), regard present situation Intersections timing scheme as intersection signal
Lamp timing scheme is inputted, and obtains the present situation vehicular traffic delay in each main wagon flow flow direction；In step (c), in present situation intersection
Intersections timing scheme is adjusted on the basis of traffic signal timing scheme.
Further, there is the split of each intersection in present situation Intersections timing scheme, intersection signal is adjusted
The thinking of lamp timing scheme is：On the basis of the split of each intersection in present situation Intersections timing scheme, extremely
The split of a corresponding intersection is improved less.
Further provide a kind of side of the VELOCITY DISTRIBUTION of vehicle in main wagon flow flow direction obtained in road network and road network
The method of the VELOCITY DISTRIBUTION of vehicle is in main wagon flow flow direction and road network in method, acquisition road network：Obtain the master in road network
The method of the VELOCITY DISTRIBUTION of vehicle is in wagon flow flow direction and road network：The GPS location data by vehicle in defined area are collected,
The VELOCITY DISTRIBUTION of vehicle in main wagon flow flow direction and the road network in road network is obtained by GPS location data.
Further, the specific step of the method for the VELOCITY DISTRIBUTION of vehicle in main wagon flow flow direction and the road network in road network is obtained
It is rapid as follows：
Step one：The collection of GPS location data and GPS basic databases are created：
(1) collection of GPS location data：GPS location data when being moved using cellphone GPS position indicator collection vehicle, GPS
Location data includes the travel time, receives satellite number, positioning longitude, positioning latitude and speed；Wherein, positioning longitude and positioning
Latitude, travel time are used to judge the location of vehicle, receive the positioning precision that satellite number is used to judge GPS location data,
Speed is used for the state for judging vehicle driving；
(2) GPS basic databases are created：After data acquisition terminates, GPS location data are imported in computer, and according to
The GPS location data collected are carried out classification storage by Customs Assigned Number, acquisition data time sequencing, form the basic numbers of GPS
Analyzed and handled according to storehouse；
Step 2：Data prediction：
(1) rejecting of abnormal GPS location data：Deletion receives satellite number less than 4 and/or instantaneous velocity changing value is big
In the GPS location data of 25km/h user；
(2) repairing of the GPS location data of missing：30 seconds track centers points before GPS location shortage of data are calculated with GPS to determine
The distance of 30 seconds track centers points after the shortage of data of position, if apart from less than 800 meters, using the two track centers points as end points,
To lack a length of number during GPS location data, uniformly tracing point is repaired according to the longitude and latitude difference between two end points；Wherein,
The GPS location data duration of missing is in seconds.
Further, in the gatherer process of GPS location data, user should open for 2-3 minutes before being away from home and setting out within one day
Cellphone GPS position indicator is preheated, and ensures that cellphone GPS position indicator is in opening all the time during going on a journey, 2-3 minutes after going home
Closing hand phone GPS location instrument afterwards.
Further, in the gatherer process of GPS location data, the acquisition time of GPS location data was at intervals of 1 second.
Employ after above-mentioned technical proposal, GPS location data that this method is gathered by cellphone GPS position indicator are obtained
The VELOCITY DISTRIBUTION of vehicle in main wagon flow flow direction and road network in road network, and Traffic Flow Simulation Models are set up by VISSIM softwares,
And different Intersections timing schemes are inputted in Traffic Flow Simulation Models, obtain the car in different each main wagon flow flow directions
Traffic delay, the parameter evaluation scheme such as is delayed good and bad, and propose prioritization scheme, the selection of prioritization scheme by vehicular traffic
In, select the wherein minimum corresponding Intersections timing scheme of vehicular traffic delay numerical value to be used as optimal timing side
Case, other input parameters can be inputted according to actual conditions, very convenient, so as to analyze optimal intersection signal
Lamp timing scheme, at utmost plays the traffic capacity of intersection, reduces the loss of regional signal lamp, improves the fortune of intersection vehicles
Line efficiency.
Embodiment
In order that present disclosure is easier to be clearly understood, below according to specific embodiment, the present invention is made into
One step is described in detail.
Contain in the step of a kind of Intersections timing design method based on traffic delay, method：
(a) obtain at least includes in the initial data of the road network in defined area, initial data：Each bar in road network
In main wagon flow flow direction, road network in the physical dimension of road and each intersection, road network in the VELOCITY DISTRIBUTION of vehicle, road network
Wagon flow flow in each main wagon flow flow direction；
(b) Traffic Flow Simulation Models are set up using VISSIM softwares, the foundation of simulation model includes three aspects：
(b1) road network in the defined area of simulation is created；
(b2) input parameter is determined：Input parameter includes main wagon flow flow direction, each main wagon flow in road network in road network
Traffic in wagon flow flow, road network in flow direction in VELOCITY DISTRIBUTION, Intersections timing scheme and the road network of vehicle
Constitute；
(b3) output parameter is determined：Output parameter includes the vehicular traffic delay in each main wagon flow flow direction；
(c) by adjusting Intersections timing scheme in the input parameter of Traffic Flow Simulation Models, different friendships are obtained
Each output parameter under prong traffic signal timing scheme；
(d) optimal Intersections timing scheme is determined；Wherein, optimal Intersections timing scheme correspondence
Output parameter in, vehicular traffic delay numerical value it is minimum.
In described step (a), also include in the initial data of acquisition：Present situation Intersections timing scheme；
Also include between step (b) and step (c)：The Traffic Flow Simulation Models set up by step (b), present situation Intersections are matched somebody with somebody
When scheme inputted as Intersections timing scheme, obtain the present situation vehicular traffic delay in each main wagon flow flow direction；In step
Suddenly in (c), Intersections timing scheme is adjusted on the basis of present situation Intersections timing scheme.
There is the split of each intersection, adjustment Intersections timing side in present situation Intersections timing scheme
The thinking of case is：On the basis of the split of each intersection in present situation Intersections timing scheme, one is at least improved
The split of individual corresponding intersection.
The method of the VELOCITY DISTRIBUTION of vehicle is in main wagon flow flow direction and road network in acquisition road network：Obtain in road network
Main wagon flow flow direction and road network in the method for VELOCITY DISTRIBUTION of vehicle be：Collect the GPS location by vehicle in defined area
Data, the VELOCITY DISTRIBUTION of vehicle in main wagon flow flow direction and the road network in road network, specific steps are obtained by GPS location data
It is as follows：
Step one：The collection of GPS location data and GPS basic databases are created：
(1) collection of GPS location data：GPS location data when being moved using cellphone GPS position indicator collection vehicle, GPS
Location data includes the travel time, receives satellite number, positioning longitude, positioning latitude and speed；Wherein, positioning longitude and positioning
Latitude, travel time are used to judge the location of vehicle, so as to obtain the driving trace of vehicle, receiving satellite number is used to judge
The positioning precision of GPS location data, speed is used for the state for judging vehicle driving；
(2) GPS basic databases are created：After data acquisition terminates, GPS location data are imported in computer, and according to
The GPS location data collected are carried out classification storage by Customs Assigned Number, acquisition data time sequencing, form the basic numbers of GPS
Analyzed and handled according to storehouse；
Step 2：Data prediction：
(1) rejecting of abnormal GPS location data：Deletion receives satellite number less than 4 and/or instantaneous velocity changing value is big
In the GPS location data of 25km/h user；When being blocked due to urban canyon effect and building, cellphone GPS signal can be weaker,
Under weaker condition, larger position skew often occurs for GPS tracing point, and 4 visible satellites are the premises being accurately positioned
Condition；
(2) repairing of the GPS location data of missing：Due to user indoors or it is overhead lower mobile when, cellphone GPS positioning
Instrument signal can by building defilade, cause can not data acquisition, GPS track point will appear from lacking section, calculates GPS location data and lack
The distance of 30 seconds track centers points after preceding 30 seconds track centers point and GPS location shortage of data is lost, if apart from less than 800 meters,
Using the two track centers points as end points, to lack a length of number during GPS location data, uniformly according to the warp between two end points
Latitude difference repairs tracing point；Wherein, the GPS location data duration of missing is in seconds；
In the gatherer process of GPS location data, user should open cellphone GPS in 2-3 minutes before being away from home and setting out within one day
Position indicator is preheated, and ensures that cellphone GPS position indicator is in opening all the time during going on a journey, and closes after going home after 2-3 minutes
Cellphone GPS position indicator.
In the gatherer process of GPS location data, the acquisition time of GPS location data was at intervals of 1 second；If interval time
The error of the information such as long main wagon flow flow direction, the VELOCITY DISTRIBUTION that can increase in road network identification.
The operation principle of the present invention is as follows：
The GPS location data that this method is gathered by cellphone GPS position indicator come obtain the main wagon flow in road network flow direction and
The VELOCITY DISTRIBUTION of vehicle in road network, and Traffic Flow Simulation Models are set up by VISSIM softwares, and it is defeated in Traffic Flow Simulation Models
Enter different Intersections timing schemes, obtain the vehicular traffic delay in different each main wagon flow flow directions, pass through vehicle
The parameter evaluation such as traffic delay scheme is good and bad, and proposes prioritization scheme, in the selection of prioritization scheme, selects wherein minimum vehicle
The corresponding Intersections timing scheme of traffic delay numerical value is as optimal timing scheme, and other input parameters can be according to reality
Border situation is inputted, very convenient, so as to analyze optimal Intersections timing scheme, is at utmost played
The traffic capacity of intersection, reduces the loss of regional signal lamp, improves the operational efficiency of intersection vehicles.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in this hair
Within bright protection domain.
Claims (7)
1. a kind of Intersections timing design method based on traffic delay, it is characterised in that：Contain in the step of method：
(a) obtain at least includes in the initial data of the road network in defined area, initial data：Each bar road in road network
Each master in main wagon flow flow direction, road network in physical dimension, road network with each intersection in the VELOCITY DISTRIBUTION of vehicle, road network
Wagon flow flow in wagon flow flow direction；
(b) Traffic Flow Simulation Models are set up using VISSIM softwares, the foundation of simulation model includes three aspects：
(b1) road network in the defined area of simulation is created；
(b2) input parameter is determined：Input parameter includes the main wagon flow flow direction in road network, each main wagon flow flow direction in road network
On wagon flow flow, the traffic components in road network in VELOCITY DISTRIBUTION, Intersections timing scheme and the road network of vehicle；
(b3) output parameter is determined：Output parameter includes the vehicular traffic delay in each main wagon flow flow direction；
(c) by adjusting Intersections timing scheme in the input parameter of Traffic Flow Simulation Models, different intersections are obtained
Each output parameter under traffic signal timing scheme；
(d) optimal Intersections timing scheme is determined；Wherein, optimal Intersections timing scheme is corresponding defeated
Go out in parameter, vehicular traffic delay numerical value is minimum.
2. the Intersections timing design method according to claim 1 based on traffic delay, it is characterised in that：
In described step (a), also include in the initial data of acquisition：Present situation Intersections timing scheme；In step (b) and step
Suddenly also include between (c)：By step (b) set up Traffic Flow Simulation Models, using present situation Intersections timing scheme as
Intersections timing scheme is inputted, and obtains the present situation vehicular traffic delay in each main wagon flow flow direction；In step (c),
Intersections timing scheme is adjusted on the basis of present situation Intersections timing scheme.
3. the Intersections timing design method according to claim 2 based on traffic delay, it is characterised in that：It is existing
There is the split of each intersection in shape Intersections timing scheme, the thinking of Intersections timing scheme is adjusted
For：On the basis of the split of each intersection in present situation Intersections timing scheme, one is at least improved accordingly
The split of intersection.
4. the Intersections timing design method according to claim 1 based on traffic delay, it is characterised in that：Obtain
The method of the VELOCITY DISTRIBUTION of vehicle is by way of in the main wagon flow flow direction and road network in road network：Collect by vehicle in defined area
GPS location data, the speed point of vehicle in main wagon flow flow direction and the road network in road network is obtained by GPS location data
Cloth.
5. the Intersections timing design method according to claim 4 based on traffic delay, it is characterised in that：Obtain
The method of the VELOCITY DISTRIBUTION of vehicle comprises the following steps that by way of in the main wagon flow flow direction and road network in road network：
Step one：The collection of GPS location data and GPS basic databases are created：
(1) collection of GPS location data：GPS location data when being moved using cellphone GPS position indicator collection vehicle, GPS location
Data include the travel time, receive satellite number, positioning longitude, positioning latitude and speed；Wherein, positioning longitude and positioning latitude
Degree, travel time are used to judge the location of vehicle, receive the positioning precision that satellite number is used to judge GPS location data, speed
Spend the state for judging vehicle driving；
(2) GPS basic databases are created：After data acquisition terminates, GPS location data are imported in computer, and according to user
The GPS location data collected are carried out classification storage by numbering, acquisition data time sequencing, form GPS basic databases
Analyzed and handled；
Step 2：Data prediction：
(1) rejecting of abnormal GPS location data：Deletion receives satellite number less than 4 and/or instantaneous velocity changing value is more than
The GPS location data of 25km/h user；
(2) repairing of the GPS location data of missing：Calculate 30 seconds track centers points and GPS location number before GPS location shortage of data
According to the distance of 30 seconds track centers points after missing, if apart from less than 800 meters, using the two track centers points as end points, to lack
A length of number during the GPS location data of mistake, uniformly repairs tracing point according to the longitude and latitude difference between two end points；Wherein, lack
The GPS location data duration of mistake is in seconds.
6. the Intersections timing design method according to claim 5 based on traffic delay, it is characterised in that：
In the gatherer process of GPS location data, user should open the preheating of cellphone GPS position indicator in 2-3 minutes before being away from home and setting out within one day,
And cellphone GPS position indicator is in opening, closing hand phone GPS location after 2-3 minutes after going home all the time during ensuring trip
Instrument.
7. the Intersections timing design method according to claim 5 based on traffic delay, it is characterised in that：
In the gatherer process of GPS location data, the acquisition time of GPS location data was at intervals of 1 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693392.8A CN107293132A (en) | 2017-08-14 | 2017-08-14 | Intersections timing design method based on traffic delay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693392.8A CN107293132A (en) | 2017-08-14 | 2017-08-14 | Intersections timing design method based on traffic delay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107293132A true CN107293132A (en) | 2017-10-24 |
Family
ID=60106039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710693392.8A Pending CN107293132A (en) | 2017-08-14 | 2017-08-14 | Intersections timing design method based on traffic delay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107293132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110209068A (en) * | 2019-06-11 | 2019-09-06 | 滁州学院 | A kind of traffic lights timing designing and simulation method |
| CN113330496A (en) * | 2018-11-19 | 2021-08-31 | 福传交通系统有限公司 | System and method for managing traffic flow using connected vehicle data |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844580A (en) * | 2006-03-21 | 2006-10-11 | 东南大学 | Method for determining best distance between urban one-way traffic pairing roads |
| CN102156790A (en) * | 2011-04-27 | 2011-08-17 | 天津市市政工程设计研究院 | Method for designing main road multifunctional lane of express way based on delay and traffic capacity |
| CN103593535A (en) * | 2013-11-22 | 2014-02-19 | 南京洛普股份有限公司 | Urban traffic complex self-adaptive network parallel simulation system and method based on multi-scale integration |
| CN104616509A (en) * | 2015-02-03 | 2015-05-13 | 上海交通大学 | Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system |
| CN106056906A (en) * | 2016-06-27 | 2016-10-26 | 南京航空航天大学 | Signal intersection left turn waiting zone setting module under arterial coordination control condition and work method thereof |
| CN106600960A (en) * | 2016-12-22 | 2017-04-26 | 西南交通大学 | Traffic travel origin and destination identification method based on space-time clustering analysis algorithm |
-
2017
- 2017-08-14 CN CN201710693392.8A patent/CN107293132A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844580A (en) * | 2006-03-21 | 2006-10-11 | 东南大学 | Method for determining best distance between urban one-way traffic pairing roads |
| CN102156790A (en) * | 2011-04-27 | 2011-08-17 | 天津市市政工程设计研究院 | Method for designing main road multifunctional lane of express way based on delay and traffic capacity |
| CN103593535A (en) * | 2013-11-22 | 2014-02-19 | 南京洛普股份有限公司 | Urban traffic complex self-adaptive network parallel simulation system and method based on multi-scale integration |
| CN104616509A (en) * | 2015-02-03 | 2015-05-13 | 上海交通大学 | Traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system |
| CN106056906A (en) * | 2016-06-27 | 2016-10-26 | 南京航空航天大学 | Signal intersection left turn waiting zone setting module under arterial coordination control condition and work method thereof |
| CN106600960A (en) * | 2016-12-22 | 2017-04-26 | 西南交通大学 | Traffic travel origin and destination identification method based on space-time clustering analysis algorithm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113330496A (en) * | 2018-11-19 | 2021-08-31 | 福传交通系统有限公司 | System and method for managing traffic flow using connected vehicle data |
| CN110209068A (en) * | 2019-06-11 | 2019-09-06 | 滁州学院 | A kind of traffic lights timing designing and simulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109215347A (en) | A kind of traffic data quality control method based on crowdsourcing track data | |
| CN105588576B (en) | A kind of lane grade navigation methods and systems | |
| CN101789182B (en) | Traffic signal control system and method based on parallel simulation technique | |
| CN104021671B (en) | The determination methods of the road real-time road that a kind of svm combines with fuzzy Judgment | |
| CN108447256B (en) | Arterial road vehicle track reconstruction method based on data fusion of electric police and fixed point detector | |
| CN109686091B (en) | Traffic flow filling algorithm based on multi-source data fusion | |
| CN100452109C (en) | Method for obtaining everage speed of city road section traffic flow | |
| CN104520912B (en) | Blocking prediction means, blocking prognoses system, blocking Forecasting Methodology and program | |
| CN105389987B (en) | A kind of road traffic condition Forecasting Methodology and device | |
| CN103403496B (en) | Utilize detection data to determine and verify the method that navigation right of priority is arranged | |
| CN112512020B (en) | Traffic state weak signal perception studying and judging method based on multi-source data fusion | |
| CN106323321A (en) | Vehicle navigation real-time correction method and vehicle navigation real-time correction system | |
| CN105241465B (en) | A kind of method of road renewal | |
| CN104835335A (en) | Road network traffic optimization control system and method | |
| US10475336B2 (en) | System for forecasting traffic condition pattern by analysis of traffic data and forecasting method thereof | |
| CN102346042B (en) | Real time road condition based route planning method and service equipment thereof | |
| CN102542801A (en) | Traffic condition prediction system fused with various traffic data and method | |
| Ban et al. | Bottleneck identification and calibration for corridor management planning | |
| CN109712401B (en) | Composite road network bottleneck point identification method based on floating car track data | |
| CN108171967A (en) | A kind of traffic control method and device | |
| CN106558221A (en) | Real-time distributed traffic information processing system | |
| CN107293132A (en) | Intersections timing design method based on traffic delay | |
| CN108877244A (en) | A kind of public transit vehicle intersection operation bottleneck method of discrimination based on dynamic data | |
| CN108122408A (en) | A kind of road condition monitoring method, apparatus and its system for monitoring road conditions | |
| CN105096590A (en) | Traffic information generation method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |