CN112466113A - Signal self-adaptive control method based on variable lane - Google Patents
Signal self-adaptive control method based on variable lane Download PDFInfo
- Publication number
- CN112466113A CN112466113A CN202011277171.0A CN202011277171A CN112466113A CN 112466113 A CN112466113 A CN 112466113A CN 202011277171 A CN202011277171 A CN 202011277171A CN 112466113 A CN112466113 A CN 112466113A
- Authority
- CN
- China
- Prior art keywords
- entering
- intersection
- overflow
- vehicles
- lane
- 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
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a signal self-adaptive control method based on a variable lane, which comprises the following steps: 1) collecting intersection data in real time; 2) identifying the overflow state of the intersection and judging whether to execute overflow emergency treatment; if not, entering the step 3); if yes, entering an overflow emergency disposal mode, generating an emergency timing scheme, and entering step 6); 3) recognizing lane-variable states and judging whether to execute variable lane control; if yes, entering a step 4); if not, entering the step 5); 4) executing variable channel control, and entering step 5); 5) entering a self-adaptive control mode, updating the lane attribute of the intersection and generating a self-adaptive timing scheme; 6) and executing the generated adaptive timing scheme. The invention enhances the adaptability of the intersection to the sudden change of the traffic flow, improves the utilization rate of space-time resources at the intersection, reduces the delay of the intersection and relieves the traffic jam of the road.
Description
Technical Field
The invention belongs to the technical field of traffic control, and particularly relates to a signal self-adaptive control method based on a variable lane.
Background
With the rapid development of national economy and the continuous acceleration of urbanization process, urban traffic jam in China is increasingly serious. The intersection is an important component of an urban traffic system, and is a node of a traffic network and a bottleneck of urban traffic.
Urban traffic flow is unbalanced in time and space, the fluctuation range of the flow direction of the intersection is large, and left-turn lanes and straight lanes cannot be fully and evenly utilized. How to reasonably utilize limited intersection space-time resources under the existing road supply condition is always a hot point for studying by scholars at home and abroad. And the traffic organization mode of the variable lanes is arranged at the intersection, so that the adjustment of the lane steering function can be realized according to the unstable condition of the flow of each steering vehicle, and the defect of insufficient utilization rate of left-turn or straight-going lanes caused by the fixed steering lanes at the intersection is overcome.
At present, the variable lane control mainly adopts a fixed scheme, namely, a control scheme is formed through manual investigation or experience, and different control schemes only operate in corresponding time intervals. The related equipment is controlled by the signal machine at regular time, the related equipment cannot be automatically controlled in real time according to traffic flow conditions, the aim of dynamically adjusting the lane function according to traffic supply and demand changes is achieved, and real-time cooperative optimization of the lane function of the variable guide lane and a signal control scheme is not achieved. Meanwhile, as the travel motorized demand is rapidly increased, a plurality of cities are in weak balance of traffic supply and demand, the defect of the fixed signal control scheme is very obvious, the locking and overflowing states can still occur at any time in the peak period, and the variable lane control of the fixed scheme can not deal with the sudden change of the traffic volume.
The defects of the prior art are summarized as follows:
(1) at present, two control modes of the existing variable lane control and signal self-adaptive control basically operate independently, and a unified traffic control strategy is not designed from the view point of integral control of the intersection, so that the intersection traffic efficiency cannot be improved to the maximum extent.
(2) In the existing variable lane control, whether the lane guide attribute is switched is analyzed and judged basically through the traffic state of the inlet flow direction, and the traffic state of the outlet is not comprehensively considered.
(3) Most of the intersection traffic flow data acquisition adopts a single detection data source, and the traffic running states of an entrance and an exit of an intersection cannot be comprehensively monitored; meanwhile, the detector has the maximum detection range, so that the traffic state beyond the detection range cannot be acquired.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a signal self-adaptive control method based on a variable lane, which acquires the passing states of an inlet and an outlet of a road junction in real time through the acquisition and analysis of multivariate detection data; the overflow emergency disposal, the variable lane control and the signal self-adaptive control are fused and applied, space resources and time resources are utilized to the maximum extent, the traffic flow of the intersection is released as required, and the vehicle passing efficiency is improved. .
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention discloses a signal self-adaptive control method based on a variable lane, which comprises the following steps:
1) collecting intersection data in real time;
2) identifying the overflow state of the intersection and judging whether to execute overflow emergency treatment; if not, entering the step 3); if yes, entering an overflow emergency disposal mode, generating an emergency timing scheme, and entering step 6);
3) recognizing lane-variable states and judging whether to execute variable lane control; if yes, entering a step 4); if not, entering the step 5);
4) executing variable channel control, and entering step 5);
5) entering a self-adaptive control mode, updating the lane attribute of the intersection, generating a self-adaptive timing scheme, and entering step 6);
6) and executing the generated timing scheme.
Further, the step 1) specifically includes: acquiring forward radar detector data and geomagnetic detector data in real time; the forward radar data includes: cross section passing, queuing length, number of vehicles in an area, head time distance and average speed; the geomagnetic detector data includes: vehicle flow and lane occupancy.
Further, the step 2) specifically includes: the method comprises the following steps of detecting an outlet area of each direction of the intersection by utilizing a forward radar, judging the overflow state of the outlet channel by analyzing the number of vehicles and the average speed of the vehicles in the outlet channel detection area, and grading the overflow degree, wherein the overflow state is divided into: severe overflow, slight overflow and smooth; the number of vehicles in the area is more than 3, the average speed of the vehicles is less than 10 km/h, and the serious overflow is defined as the duration time of more than 10 seconds; the number of vehicles in the area is more than 3, the average speed of the vehicles is more than 10 km/h and less than 20 km/h, and the duration time of more than 10 seconds is defined as slight overflow; the other condition is smooth;
and when the intersection is in a serious overflow state, immediately entering an overflow emergency disposal mode to generate an emergency timing scheme.
Further, the emergency timing scheme is as follows: the scheme generated in the overflow emergency disposal mode is used for accelerating and dredging the overstocked vehicles in the overflow direction and slowing down the vehicles in other directions from entering the intersection so as to avoid the vehicles in all directions from being interwoven in the middle of the intersection.
Further, the step 3) specifically includes: analyzing the queuing length of the vehicle to obtain the vehicle passing requirement of the flow direction; the outlet channel corresponding to the flow direction is used for analyzing whether an overflow state exists or not, and judging whether vehicles need to be added to the outlet to be released or not; and meanwhile, the minimum interval of the guidance attribute switching is limited, namely after the guidance attribute is switched to the variable lane, the state needs to be kept for the minimum interval time, and the guidance attribute is allowed to be changed again.
And when the passing requirement of the vehicles flowing from the inlet meets the switching requirement, the outlet channel does not have an overflow state, and the variable lane meets the switching minimum interval requirement, executing variable lane control and switching the guide attribute of the variable lane.
Further, the step 5) specifically includes: entering into self-adaptive control mode, updating the lane attribute of the intersection, carrying out traffic flow data statistical analysis according to the changed lane attribute, calculating the period phase duration, and generating a self-adaptive timing scheme.
Further, the adaptive timing scheme is as follows: the scheme generated under the self-adaptive control mode is used for commanding vehicles in all directions of the intersection to pass in sequence.
The invention has the beneficial effects that:
according to the invention, by analyzing the time and space difference of the traffic flow in the road network distribution, the time resource and the space resource of the intersection can be integrated, the traffic organization mode and the signal control scheme can be adjusted in real time, the emergency treatment of intersection overflow, the variable lane control and the self-adaptive control of traffic signals are realized, the adaptive capacity of the intersection for dealing with the sudden change of the traffic flow is enhanced, the utilization rate of the time and space resource of the intersection is improved, the intersection delay is reduced, and the road traffic jam is relieved.
Drawings
FIG. 1 is a schematic view of the installation of the crossing detector of the present invention
FIG. 2 is a schematic diagram of the method of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Referring to fig. 1, traffic flow information is acquired at an intersection in a form of a combination of a forward radar detector and a geomagnetic detector, and traffic flows of an entrance road and an exit road of the intersection are monitored by the forward radar detector, wherein the traffic flows include flow, queuing length, number of vehicles in an area, speed of the vehicles and the like; and for the area beyond the forward radar monitoring range, a geomagnetic detector is used to prolong the monitoring range of the traffic flow at the intersection.
The annunciator is accessed into the detector data, the intersection traffic running state is identified through data analysis, the execution condition of signal control is judged, and according to different conditions, overflow emergency disposal, variable lane control and self-adaptive control can be executed.
Referring to fig. 2, the adaptive control method for a variable lane based signal according to the present invention includes the following steps:
1) collecting intersection data in real time;
acquiring forward radar detector data and geomagnetic detector data in real time; the forward radar data includes: cross section passing, queuing length, number of vehicles in an area, head time distance and average speed; the geomagnetic detector data includes: vehicle flow and lane occupancy.
2) Identifying the overflow state of the intersection and judging whether to execute overflow emergency treatment; if not, entering the step 3); if yes, entering an overflow emergency disposal mode, generating an emergency timing scheme, and entering step 6);
the method comprises the following steps of detecting an outlet area of each direction of the intersection by utilizing a forward radar, judging the overflow state of the outlet channel by analyzing the number of vehicles and the average speed of the vehicles in the outlet channel detection area, and grading the overflow degree, wherein the overflow state is divided into: severe overflow, slight overflow and smooth; the number of vehicles in the area is more than 3, the average speed of the vehicles is less than 10 km/h, and the serious overflow is defined as the duration time of more than 10 seconds; the number of vehicles in the area is more than 3, the average speed of the vehicles is more than 10 km/h and less than 20 km/h, and the duration time of more than 10 seconds is defined as slight overflow; the other condition is smooth; the specific method is as follows in the following table 1:
TABLE 1
And when the intersection is in a serious overflow state, immediately entering an overflow emergency disposal mode to generate an emergency timing scheme.
The emergency timing scheme is as follows: the scheme generated in the overflow emergency disposal mode is used for accelerating and dredging the overstocked vehicles in the overflow direction and slowing down the vehicles in other directions from entering the intersection so as to avoid the vehicles in all directions from being interwoven in the middle of the intersection.
3) Recognizing lane-variable states and judging whether to execute variable lane control; if yes, entering a step 4); if not, entering the step 5);
analyzing the queuing length of the vehicle to obtain the vehicle passing requirement of the flow direction; the outlet channel corresponding to the flow direction is used for analyzing whether an overflow state exists or not, and judging whether vehicles need to be added to the outlet to be released or not; and meanwhile, the minimum interval of the guidance attribute switching is limited, namely after the guidance attribute is switched to the variable lane, the state needs to be kept for the minimum interval time, and the guidance attribute is allowed to be changed again.
And when the passing requirement of the vehicles flowing from the inlet meets the switching requirement, the outlet channel does not have an overflow state, and the variable lane meets the switching minimum interval requirement, executing variable lane control and switching the guide attribute of the variable lane.
4) Executing variable channel control, and entering step 5);
5) entering a self-adaptive control mode, updating the lane attribute of the intersection, generating a self-adaptive timing scheme, and entering step 6);
entering into self-adaptive control mode, updating the lane attribute of the intersection, carrying out traffic flow data statistical analysis according to the changed lane attribute, calculating the period phase duration, and generating a self-adaptive timing scheme.
The self-adaptive timing scheme is as follows: the scheme generated under the self-adaptive control mode is used for commanding vehicles in all directions of the intersection to pass in sequence.
6) And executing the generated timing scheme.
While the invention has been described in terms of its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A signal self-adaptive control method based on a variable lane is characterized by comprising the following steps:
1) collecting intersection data in real time;
2) identifying the overflow state of the intersection and judging whether to execute overflow emergency treatment; if not, entering the step 3); if yes, entering an overflow emergency disposal mode, generating an emergency timing scheme, and entering step 6);
3) recognizing lane-variable states and judging whether to execute variable lane control; if yes, entering a step 4); if not, entering the step 5);
4) executing variable channel control, and entering step 5);
5) entering a self-adaptive control mode, updating the lane attribute of the intersection, generating a self-adaptive timing scheme, and entering step 6);
6) and executing the generated timing scheme.
2. The adaptive control method for variable lane based signals according to claim 1, wherein the step 1) specifically comprises: acquiring forward radar detector data and geomagnetic detector data in real time; the forward radar data includes: cross section passing, queuing length, number of vehicles in an area, head time distance and average speed; the geomagnetic detector data includes: vehicle flow and lane occupancy.
3. The adaptive control method for variable lane based signals according to claim 1, wherein the step 2) specifically comprises: the method comprises the following steps of detecting an outlet area of each direction of the intersection by utilizing a forward radar, judging the overflow state of the outlet channel by analyzing the number of vehicles and the average speed of the vehicles in the outlet channel detection area, and grading the overflow degree, wherein the overflow state is divided into: severe overflow, slight overflow and smooth; the number of vehicles in the area is more than 3, the average speed of the vehicles is less than 10 km/h, and the serious overflow is defined as the duration time of more than 10 seconds; the number of vehicles in the area is more than 3, the average speed of the vehicles is more than 10 km/h and less than 20 km/h, and the duration time of more than 10 seconds is defined as slight overflow; the other condition is smooth;
and when the intersection is in a serious overflow state, immediately entering an overflow emergency disposal mode to generate an emergency timing scheme.
4. The adaptive control method for variable lane based signals according to claim 3, wherein the emergency timing scheme: the scheme generated in the overflow emergency disposal mode is used for accelerating and dredging the overstocked vehicles in the overflow direction, slowing down the vehicles in other directions from entering the intersection and avoiding the vehicles in all directions from being interwoven in the middle of the intersection.
5. The adaptive control method for variable lane based signals according to claim 1, wherein the step 3) specifically comprises: analyzing the queuing length of the vehicle to obtain the vehicle passing requirement of the flow direction; the outlet channel corresponding to the flow direction is used for analyzing whether an overflow state exists or not, and judging whether vehicles need to be added to the outlet to be released or not; and meanwhile, the minimum interval of the guidance attribute switching is limited, namely after the guidance attribute is switched to the variable lane, the state needs to be kept for the minimum interval time, and the guidance attribute is allowed to be changed again.
6. The adaptive control method for variable lane based signals according to claim 1, wherein the step 5) specifically comprises: entering into self-adaptive control mode, updating the lane attribute of the intersection, carrying out traffic flow data statistical analysis according to the changed lane attribute, calculating the period phase duration, and generating a self-adaptive timing scheme.
7. The variable lane-based signal adaptive control method according to claim 6, wherein the adaptive timing scheme is: the scheme generated under the self-adaptive control mode is used for commanding vehicles in all directions of the intersection to pass in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277171.0A CN112466113A (en) | 2020-11-16 | 2020-11-16 | Signal self-adaptive control method based on variable lane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277171.0A CN112466113A (en) | 2020-11-16 | 2020-11-16 | Signal self-adaptive control method based on variable lane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112466113A true CN112466113A (en) | 2021-03-09 |
Family
ID=74837558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011277171.0A Pending CN112466113A (en) | 2020-11-16 | 2020-11-16 | Signal self-adaptive control method based on variable lane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112466113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022120022A (en) * | 2021-06-22 | 2022-08-17 | 阿波▲羅▼智▲聯▼（北京）科技有限公司 | Control method for variable lane, device, apparatus, and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867423A (en) * | 2012-09-24 | 2013-01-09 | 东南大学 | Cooperative control method for variable lanes of city artery |
| CN104036645A (en) * | 2014-06-03 | 2014-09-10 | 东南大学 | Reversible-lane-based intersection signal control method |
| CN106297326A (en) * | 2016-10-27 | 2017-01-04 | 深圳榕亨实业集团有限公司 | Based on holographic road network tide flow stream Lane use control method |
| CN108765989A (en) * | 2018-06-04 | 2018-11-06 | 沈阳建筑大学 | A kind of guided vehicle road signal control method that intersection straight and turning left is variable |
| CN109003444A (en) * | 2018-07-02 | 2018-12-14 | 北方工业大学 | Urban intersection overflow control method based on wide area radar microwave detector |
| CN110364002A (en) * | 2019-05-22 | 2019-10-22 | 江苏科创交通安全产业研究院有限公司 | A kind of vehicle three-level Induction Control method and system in Traffic Net |
| CN110648536A (en) * | 2019-09-27 | 2020-01-03 | 连云港杰瑞电子有限公司 | Variable lane signal control method based on multiple traffic indexes |
| CN111145564A (en) * | 2020-01-03 | 2020-05-12 | 山东大学 | Self-adaptive variable lane control method and system for signal control intersection |
| CN111260938A (en) * | 2019-12-30 | 2020-06-09 | 浙江浙大中控信息技术有限公司 | Variable lane self-adaptive control method based on traffic demand |
-
2020
- 2020-11-16 CN CN202011277171.0A patent/CN112466113A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867423A (en) * | 2012-09-24 | 2013-01-09 | 东南大学 | Cooperative control method for variable lanes of city artery |
| CN104036645A (en) * | 2014-06-03 | 2014-09-10 | 东南大学 | Reversible-lane-based intersection signal control method |
| CN106297326A (en) * | 2016-10-27 | 2017-01-04 | 深圳榕亨实业集团有限公司 | Based on holographic road network tide flow stream Lane use control method |
| CN108765989A (en) * | 2018-06-04 | 2018-11-06 | 沈阳建筑大学 | A kind of guided vehicle road signal control method that intersection straight and turning left is variable |
| CN109003444A (en) * | 2018-07-02 | 2018-12-14 | 北方工业大学 | Urban intersection overflow control method based on wide area radar microwave detector |
| CN110364002A (en) * | 2019-05-22 | 2019-10-22 | 江苏科创交通安全产业研究院有限公司 | A kind of vehicle three-level Induction Control method and system in Traffic Net |
| CN110648536A (en) * | 2019-09-27 | 2020-01-03 | 连云港杰瑞电子有限公司 | Variable lane signal control method based on multiple traffic indexes |
| CN111260938A (en) * | 2019-12-30 | 2020-06-09 | 浙江浙大中控信息技术有限公司 | Variable lane self-adaptive control method based on traffic demand |
| CN111145564A (en) * | 2020-01-03 | 2020-05-12 | 山东大学 | Self-adaptive variable lane control method and system for signal control intersection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022120022A (en) * | 2021-06-22 | 2022-08-17 | 阿波▲羅▼智▲聯▼（北京）科技有限公司 | Control method for variable lane, device, apparatus, and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105206070A (en) | Real-time road traffic signal coordination optimization control method and control system thereof | |
| CN101308604B (en) | Traffic coordinating and controlling method with strategy of big range | |
| CN108665715B (en) | Intelligent traffic studying and judging and signal optimizing method for intersection | |
| CN105679032B (en) | A kind of traffic control sub-area division method under urban traffic flow hypersaturated state | |
| CN103700251B (en) | Variable speed-limit and ramp metering rate coordinating and optimizing control method on a kind of through street | |
| CN104680785B (en) | Method and device for determining traffic condition of road section | |
| CN107248299B (en) | Special-lane bus priority trunk line coordination control method based on standing time | |
| CN112738959B (en) | Urban road street lamp energy saving and emission reduction control system based on smart city | |
| CN112509328B (en) | Method for analyzing conflict behavior of intersection right-turning motor vehicle and electric bicycle | |
| CN106469507A (en) | Dynamic green wave system and method automatically adjusted based on Real-Time Traffic Volume data | |
| CN112466113A (en) | Signal self-adaptive control method based on variable lane | |
| CN111599193A (en) | Dynamic self-adaptive green wave method based on vehicle-road cooperation | |
| CN112102627A (en) | Variable lane control method based on vehicle-road cooperation | |
| CN115206115A (en) | Road network congestion area control method based on multi-source data edge calculation in intelligent networking environment | |
| CN106205118A (en) | A kind of intelligent traffic control system and method | |
| CN110033627B (en) | Highway speed limit control method based on time stability | |
| CN113823102B (en) | Self-adaptive signal timing method under software-defined vehicle-mounted network environment | |
| CN112071095A (en) | Signal timing method for emergency vehicle passing intersection based on V2X technology | |
| CN109859475B (en) | Intersection signal control method, device and system based on DBSCAN density clustering | |
| CN112884194B (en) | Variable lane switching and signal timing method based on signal intersection operation condition | |
| CN112133116B (en) | Lane management and control system based on traffic prediction | |
| CN111754790A (en) | Ramp entrance traffic control system and method based on radar | |
| CN109345825B (en) | Signal intersection one-way traffic flow control system and method under cooperative vehicle and road environment | |
| Gao et al. | Coordinated control method of intersection traffic light in one-way road based on V2X | |
| CN112669628B (en) | Intersection signal design method based on demand-supply dual fluctuation |
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: 20210309 |