CN108269400A - A kind of trunk roads signalized crossing delay evaluation method and device - Google Patents
A kind of trunk roads signalized crossing delay evaluation method and device Download PDFInfo
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- CN108269400A CN108269400A CN201810072424.7A CN201810072424A CN108269400A CN 108269400 A CN108269400 A CN 108269400A CN 201810072424 A CN201810072424 A CN 201810072424A CN 108269400 A CN108269400 A CN 108269400A
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- 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
Abstract
The invention discloses a kind of trunk roads signalized crossing delay evaluation methods and device, this method to include：Receive and store the bayonet data that each tollgate devices upload；It will be grouped in the intersection in bayonet data by vehicle according to the clearance phase of intersection and direction of traffic；The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group, and vehicle in each group is grouped again according to the signal period；Average travel time by intersection under vehicle green light in the time of intersection and group is passed through according to vehicle in the group after every grouping again and again, estimates the intersection vehicles delay time at stop.This hair is solved using existing tollgate devices, obtains the vehicle delay of intersection all directions, easy to operate, accuracy rate is high.
Description
Technical field
The invention belongs to the technical fields of urban highway traffic, are related to a kind of trunk roads signalized crossing delay estimation
Method and device, more particularly, to a kind of trunk roads signalized crossing delay evaluation method and dress based on bayonet data
It puts.
Background technology
Intersection delay is the important indicator for evaluating intersection degree of congestion and service level, is usually used in evaluating intersection
The reasonability of design and signal time distributing conception, and intersection delay is excellent in single-point intersection signal timing dial and Arterial Coordination Control
There is important purposes in change.
In the prior art, Chinese patent literature CN104750963A discloses a kind of intersection delay duration method of estimation
And device, by car-mounted terminal either hand-held mobile terminal or trackside detection device detect each car enter the intersection and from
It opens the time point of intersection, calculates duration of each vehicle by the intersection, the duration which is passed through according to the vehicle
With vehicle under free stream velocity by the intersection duration, calculate the vehicle in the delay duration for crying intersection.
Chinese patent literature CN106652454A discloses a kind of intersection delay evaluation method based on floating car data,
The GPS data that Floating Car uploads in real time with intersection map is matched, records what vehicle reduced speed now in entrance driveway respectively
Position, moment and vehicle accelerate to position, the moment for the speed that passes unimpeded in exit ramp, and calculate respectively used in two states when
Between, calculate delay of the vehicle in intersection.
Chinese patent literature CN105096597A discloses a kind of intersection delay determination method, by entrance driveway to intersection
Identification is turned to, calculates steering angle, intersection turning delay penalty is called, is turned to according to road type and intersection identification
Assignment is carried out to it and penalty is delayed according to intersection turning carrying out intersection delay judgement.
Chinese patent literature CN101783073A discloses a kind of signalized intersections delay based on double sections detector and surveys
Determine method, two groups of detectors are set respectively at the intersection and far from intersection section, after a signal period, from stopping
The first car within this period is obtained at fare in detection data to sail at the time of intersection is stopped and during green light from stop line
From information of vehicles, at the time of passing through stop line according to first car cut-off time and last vehicle, free flow running time,
Calculate substantially moment of this two cars Jing Guo entrance driveway upstream detector, then using the two moment as the end of a time interval
Point, filters out the vehicle information data in this time interval range from detection data, and conjunction is selected according to track and vehicle information
The vehicle pairing that the data of reason were sailed out of as this period by distal end detection sectional plane at the time of.Each car is in two sections
The difference of running time and free flow running time is delay of the vehicle in intersection.
However, above-mentioned prior art has the following disadvantages：
First, the position that vehicle waits for parking at the intersection is unfixed, and detection vehicle based on equipment enters friendship
Prong time point is inaccurate；
Second, floating car data is few there are sample data, and positioning is inaccurate, there are problems that deviateing with map match；
The problem of third, the detection method of dual detector is high there are cost, and relevance grade is not high；
4th, the delay algorithm based on model is complicated, is not easy to put into practice.
In conclusion the vehicle delay time at stop of how simple in the prior art, accurate estimation intersection all directions asks
Topic, still lacks effective solution.
Invention content
For the deficiencies in the prior art, how simple, accurate estimation intersection each side in the prior art is solved
To the vehicle delay time at stop the problem of, the present invention proposes a kind of trunk roads signalized crossing delay evaluation method and dress
It puts, applicable elements are disturbed smaller signalized crossing for section vehicle.The present invention is set using the existing bayonet in intersection
It is standby, based on bayonet data, the vehicle delay time at stop of intersection all directions is obtained, there is the advantages of easy to operate, accuracy rate is high.
The first object of the present invention is to provide a kind of trunk roads signalized crossing delay evaluation method.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of trunk roads signalized crossing is delayed evaluation method, and this method includes：
Receive and store the bayonet data that each tollgate devices upload；
It will be grouped in the intersection in bayonet data by vehicle according to the clearance phase of intersection and direction of traffic；
The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group, by each group
Interior vehicle is grouped again according to the signal period；
According to vehicle in the group after every grouping again and again by passing through intersection under vehicle green light in the time of intersection and group
Average travel time, estimate the intersection vehicles delay time at stop.
Scheme as a further preference, in the method, by bayonet data middle and lower reaches intersection by vehicle according to
The clearance phase and direction of traffic of the intersection are grouped, the clearance phase after each corresponding point of direction of traffic of grouping.
In the method, vehicle in after grouping each group is intersected according to by downstream for scheme as a further preference
The sequencing of mouth is ranked up.
Scheme as a further preference, in the method, the record time that downstream intersection is passed through according to vehicle in group
The difference of record time that a upper vehicle adjacent thereto passes through downstream intersection calculates the time headway of vehicle in the group.
Scheme as a further preference, in the method, according to the red light in the time headway of vehicle in group and the group
The relationship of time judge the vehicle whether be two signal periods separation.
Scheme as a further preference, after vehicle is grouped again according to the signal period in by each group, to each
Vehicle is resequenced according to by the sequencing of upstream intersection in group after being grouped again.
Vehicle in group after every grouping again and again is divided into queuing by scheme as a further preference according to Link Travel Time
Under vehicle and green light directly by non-queuing vehicle.
Scheme as a further preference, in described group under vehicle green light by the average travel time of intersection in group
Under all green lights directly by non-queuing vehicle pass through downstream intersection record the time average value.
The second object of the present invention is to provide a kind of computer readable storage medium.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of computer readable storage medium, wherein being stored with a plurality of instruction, described instruction is suitable for by terminal device equipment
Processor load and perform following processing：
Receive and store the bayonet data that each tollgate devices upload；
It will be grouped in the intersection in bayonet data by vehicle according to the clearance phase of intersection and direction of traffic；
The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group, by each group
Interior vehicle is grouped again according to the signal period；
According to vehicle in the group after every grouping again and again by passing through intersection under vehicle green light in the time of intersection and group
Average travel time, estimate the intersection vehicles delay time at stop.
The third object of the present invention is to provide a kind of terminal device.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of terminal device, including processor and computer readable storage medium, processor is used to implement each instruction；It calculates
For storing a plurality of instruction, described instruction is suitable for being loaded by processor and performing following processing machine readable storage medium storing program for executing：
Receive and store the bayonet data that each tollgate devices upload；
It will be grouped in the intersection in bayonet data by vehicle according to the clearance phase of intersection and direction of traffic；
The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group, by each group
Interior vehicle is grouped again according to the signal period；
According to vehicle in the group after every grouping again and again by passing through intersection under vehicle green light in the time of intersection and group
Average travel time, estimate the intersection vehicles delay time at stop.
Beneficial effects of the present invention：
A kind of trunk roads signalized crossing delay evaluation method and device of the present invention, it is existing using intersection
Bayonet data will be grouped in intersection by vehicle according to signal phase and direction of traffic, and vehicle is with time headway in group
Vehicle in group as signal period separation and being grouped by interval again according to the signal period, during by vehicle in group according to link travel
Between be divided into green light directly by vehicle and be lined up through vehicle, and then obtain the vehicle delay time at stop；This method can utilize existing
Tollgate devices, obtain the vehicle delay of intersection all directions, there is easy to operate, the advantages of accuracy rate is high.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not form the improper restriction to the application for explaining the application.
The trunk roads signalized crossing based on bayonet data that Fig. 1 is the present invention is delayed evaluation method flow chart；
Fig. 2 is the specific method flow chart of the embodiment of the present invention 1.
Specific embodiment：
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms that the present embodiment uses have and the application person of an ordinary skill in the technical field
Normally understood identical meanings.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that the flow chart and block diagram in attached drawing show method according to various embodiments of the present disclosure and
Architectural framework in the cards, function and the operation of system.It should be noted that each box in flow chart or block diagram can represent
A part for one module, program segment or code, the module, program segment or a part of of code can include one or more
A executable instruction for being used to implement the logic function of defined in each embodiment.It should also be noted that at some alternately
Realization in, the function that is marked in box can also occur according to the sequence different from being marked in attached drawing.For example, two connect
The box even represented can essentially perform substantially in parallel or they can also be performed in a reverse order sometimes,
This depends on involved function.It should also be noted that each box and flow chart in flow chart and/or block diagram
And/or the combination of the box in block diagram, it can be come using the dedicated hardware based system of functions or operations as defined in execution
It realizes or can be realized using the combination of specialized hardware and computer instruction.
Bayonet system, also known as Vehicular intelligent monitoring and recording system, with high coverage rate, the characteristics of high rate of precision, to city
The current vehicle of city boundary road and Important Sections carries out detection automatically, record and Car license recognition.By bayonet data application to city
In city's traffic administration, another feasible solution is provided to solve urban transport problems.
In the absence of conflict, the feature in the embodiment and embodiment in the application can be combined with each other with reference to
The invention will be further described with embodiment for attached drawing.
Embodiment 1：
The purpose of the present embodiment 1 is to provide a kind of trunk roads signalized crossing delay estimation side based on bayonet data
Method.
To achieve these goals, the present invention is using a kind of following technical solution：
As shown in Figure 1,
A kind of trunk roads signalized crossing delay evaluation method based on bayonet data, this method include：
Step (1)：Receive and store the bayonet data that each tollgate devices upload；
Step (2)：Vehicle will be passed through in the intersection in bayonet data according to the clearance phase of intersection and direction of traffic
Grouping；
Step (3)：The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group,
Vehicle in each group is grouped again according to the signal period；
Step (4)：Passed through according to vehicle in the group after every grouping again and again and led under vehicle green light in the time of intersection and group
The average travel time of intersection is crossed, estimates the intersection vehicles delay time at stop.
The present embodiment the step of in (1), the bayonet data that a tollgate devices upload will be received and import database, located
Reason device needs to transfer the bayonet data of needs during bayonet data from database in real time.
The specific steps method of (2)-step (4) is as shown in Figure 2 the present embodiment the step of.
The present embodiment the step of in (2), by bayonet data middle and lower reaches intersection by vehicle according to the intersection
Clearance phase and direction of traffic are grouped, the clearance phase after each corresponding point of direction of traffic of grouping.
The present embodiment the step of in (2), by vehicle in after grouping each group according to suitable by the priority of downstream intersection
Sequence is ranked up.
Bayonet data are divided according to the signal time distributing conception (clearance phase) of each intersection and vehicle driving direction
Group is simultaneously numbered, packet numbering j, j=1,2,3 ... n, by the vehicle data of each clearance phase, vehicle in each group after being both grouped
It is ranked up and numbers according to the sequencing recorded by the downstream intersection time, wherein the car number in each phase
For i, i=1,2,3 ... n.
For the present embodiment by taking normal signal controls intersection as an example, common signal time distributing conception is followed successively by thing straight trip, east
West is turned left, and north and south straight trip, north and south is turned left；Combined in the present embodiment clearance phase and direction of traffic obtain behind point direction with phase
Position specifically includes eastern straight trip, west straight trip, and east is turned left, and west is turned left, south straight trip, north straight trip, and south is turned left, and north is turned left, respectively to more than
The vehicle of eight direction phases is grouped and numbers, and packet numbering is followed successively by 1,2,3,4,5,6,7,8.
The present embodiment the step of in (3), according to vehicle in group by record time of downstream intersection it is adjacent thereto on
The difference for the record time that one vehicle passes through downstream intersection calculates the time headway of vehicle in the group.
The time headway calculation formula of i-th vehicle and (i-1)-th vehicle is in j-th of phase：
Wherein,For the time headway in j-th of phase between i-th vehicle and (i-1)-th vehicle,It is in j-th of phase
I vehicle by record time of downstream intersection,During for (i-1)-th vehicle in j-th of phase by the record of downstream intersection
Between.
The present embodiment the step of in (3), according to the relationship of the red time in the time headway of vehicle in group and the group
Judge the vehicle whether be two signal periods separation.
Rule of judgment is：
Wherein,For the red time in j-th of phase.
Work as time headwayMore than or equal to red timeWhen, vehicle i was point of the signal period and a upper signal period
Boundary's point.
The present embodiment the step of in (4), after vehicle is grouped again according to the signal period in by each group, to each
Vehicle is resequenced according to by the sequencing of upstream intersection in group after being grouped again.
The present embodiment the step of in (4), vehicle in per the group after being grouped again and again is divided into row according to Link Travel Time
Team vehicle and green light under directly by non-queuing vehicle, and calculate the phase vehicle delay.
Phase vehicle delay estimation formula is：
Wherein,For the delay time at stop of all vehicles in j-th of phase,Pass through for i-th vehicle in j-th of phase
The record time of downstream intersection,For the average travel time by section under vehicle green light in j-th of phase.In described group
Under vehicle green light by the average travel time of intersection under all green lights in group directly by non-queuing vehicle under
Swim the average value of the record time of intersection.
Embodiment 2：
The purpose of the present embodiment 2 is to provide a kind of computer readable storage medium.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of computer readable storage medium, wherein being stored with a plurality of instruction, described instruction is suitable for by terminal device equipment
Processor load and perform following processing：
Step (1)：Receive and store the bayonet data that each tollgate devices upload；
Step (2)：Vehicle will be passed through in the intersection in bayonet data according to the clearance phase of intersection and direction of traffic
Grouping；
Step (3)：The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group,
Vehicle in each group is grouped again according to the signal period；
Step (4)：Passed through according to vehicle in the group after every grouping again and again and led under vehicle green light in the time of intersection and group
The average travel time of intersection is crossed, estimates the intersection vehicles delay time at stop.
Embodiment 3：
The purpose of the present embodiment 3 is to provide a kind of terminal device.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of terminal device, including processor and computer readable storage medium, processor is used to implement each instruction；It calculates
For storing a plurality of instruction, described instruction is suitable for being loaded by processor and performing following processing machine readable storage medium storing program for executing：
Step (1)：Receive and store the bayonet data that each tollgate devices upload；
Step (2)：Vehicle will be passed through in the intersection in bayonet data according to the clearance phase of intersection and direction of traffic
Grouping；
Step (3)：The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group,
Vehicle in each group is grouped again according to the signal period；
Step (4)：Passed through according to vehicle in the group after every grouping again and again and led under vehicle green light in the time of intersection and group
The average travel time of intersection is crossed, estimates the intersection vehicles delay time at stop.
These computer executable instructions cause the equipment to perform each reality in the disclosure when running in a device
Apply the described method of example or process.
In the present embodiment, computer program product can include computer readable storage medium, containing for holding
The computer-readable program instructions of row various aspects of the disclosure.Computer readable storage medium can be kept and store
The tangible device of instruction used by instruction execution equipment.Computer readable storage medium for example can be-- but it is unlimited
In-- storage device electric, magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or above-mentioned
Any appropriate combination.The more specific example (non exhaustive list) of computer readable storage medium includes：Portable computing
Machine disk, hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM or
Flash memory), static RAM (SRAM), Portable compressed disk read-only memory (CD-ROM), digital versatile disc
(DVD), memory stick, floppy disk, mechanical coding equipment, the punch card for being for example stored thereon with instruction or groove internal projection structure, with
And above-mentioned any appropriate combination.Computer readable storage medium used herein above is not interpreted instantaneous signal in itself,
The electromagnetic wave of such as radio wave or other Free propagations, the electromagnetic wave propagated by waveguide or other transmission mediums (for example,
Pass through the light pulse of fiber optic cables) or by electric wire transmit electric signal.
Computer-readable program instructions described herein can be downloaded to from computer readable storage medium it is each calculate/
Processing equipment downloads to outer computer or outer by network, such as internet, LAN, wide area network and/or wireless network
Portion's storage device.Network can include copper transmission cable, optical fiber transmission, wireless transmission, router, fire wall, interchanger, gateway
Computer and/or Edge Server.Adapter or network interface in each calculating/processing equipment are received from network to be counted
Calculation machine readable program instructions, and the computer-readable program instructions are forwarded, for the meter being stored in each calculating/processing equipment
In calculation machine readable storage medium storing program for executing.
Computer program instructions for performing present disclosure operation can be assembly instruction, instruction set architecture (ISA)
Instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data or with one or more programmings
Language arbitrarily combines the source code or object code write, and the programming language includes the programming language of object-oriented-such as
Procedural programming languages-such as " C " language or similar programming language of C++ etc. and routine.Computer-readable program refers to
Order can be performed fully, partly performed on the user computer, the software package independent as one on the user computer
Perform, part on the user computer part on the remote computer perform or completely on a remote computer or server
It performs.In situations involving remote computers, remote computer can pass through the network of any kind-include LAN
(LAN) or wide area network (WAN)-be connected to subscriber computer or, it may be connected to outer computer (such as utilizes internet
Service provider passes through Internet connection).In some embodiments, believe by using the state of computer-readable program instructions
Breath comes personalized customization electronic circuit, such as programmable logic circuit, field programmable gate array (FPGA) or programmable logic
Array (PLA), the electronic circuit can perform computer-readable program instructions, so as to fulfill various aspects in the present disclosure.
It should be noted that although being referred to several modules or submodule of equipment in detailed descriptions above, it is this
Division is merely exemplary rather than enforceable.In fact, in accordance with an embodiment of the present disclosure, two or more above-described moulds
The feature and function of block can embody in a module.Conversely, the feature and function of an above-described module can be with
It is further divided into being embodied by multiple modules.
Beneficial effects of the present invention：
A kind of trunk roads signalized crossing delay evaluation method and device of the present invention, it is existing using intersection
Bayonet data will be grouped in intersection by vehicle according to signal phase and direction of traffic, and vehicle is with time headway in group
Vehicle in group as signal period separation and being grouped by interval again according to the signal period, during by vehicle in group according to link travel
Between be divided into green light directly by vehicle and be lined up through vehicle, and then obtain the vehicle delay time at stop；This method can utilize existing
Tollgate devices, obtain the vehicle delay of intersection all directions, there is easy to operate, the advantages of accuracy rate is high.
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for the skill of this field
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.Therefore, the present invention is not intended to be limited to this
These embodiments shown in text, and it is to fit to the most wide range consistent with the principles and novel features disclosed herein.
Claims (10)
1. a kind of trunk roads signalized crossing is delayed evaluation method, which is characterized in that this method includes：
Receive and store the bayonet data that each tollgate devices upload；
It will be grouped in the intersection in bayonet data by vehicle according to the clearance phase of intersection and direction of traffic；
The time headway interval of vehicle obtains the corresponding signal period as signal period separation using in group, by vehicle in each group
It is grouped again according to the signal period；
Passed through under vehicle green light in the time of intersection and group through the flat of intersection according to vehicle in the group after every grouping again and again
Equal journey time estimates the intersection vehicles delay time at stop.
2. the method as described in claim 1, which is characterized in that in the method, will lead in bayonet data middle and lower reaches intersection
It crosses vehicle to be grouped according to the clearance phase and direction of traffic of the intersection, after each corresponding point of direction of traffic of grouping
Clearance phase.
3. the method as described in claim 1, which is characterized in that in the method, by vehicle in after grouping each group according to logical
The sequencing for crossing downstream intersection is ranked up.
4. the method as described in claim 1, which is characterized in that in the method, downstream intersection is passed through according to vehicle in group
The a record time upper vehicle adjacent thereto difference of record time that passes through downstream intersection calculate the headstock of vehicle in the group
When away from.
5. the method as described in claim 1, which is characterized in that in the method, according to the time headway of vehicle in group with being somebody's turn to do
The relationship of red time in group judge the vehicle whether be two signal periods separation.
6. the method as described in claim 1, which is characterized in that vehicle is grouped again according to the signal period in by each group
Afterwards, it resequences to vehicle in the group after every grouping again and again according to by the sequencing of upstream intersection.
7. method as claimed in claim 6, which is characterized in that during by vehicle in the group after every grouping again and again according to link travel
Between be divided under queuing vehicle and green light directly by non-queuing vehicle.
8. the method for claim 7, which is characterized in that the average stroke in described group under vehicle green light by intersection
Time under all green lights in group directly by non-queuing vehicle pass through downstream intersection the record time average value.
9. a kind of computer readable storage medium, wherein being stored with a plurality of instruction, which is characterized in that described instruction is suitable for by terminal
The processor of equipment equipment is loaded and is performed according to the method described in any one of claim 1-8.
10. a kind of terminal device, including processor and computer readable storage medium, processor is used to implement each instruction；It calculates
Machine readable storage medium storing program for executing is used to store a plurality of instruction, which is characterized in that described instruction is appointed for performing according in claim 1-8
Method described in one.
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| CN111798679A (en) * | 2020-07-24 | 2020-10-20 | 公安部交通管理科学研究所 | Signalized intersection lane green light loss time calculation method and system |
| CN111798679B (en) * | 2020-07-24 | 2021-10-22 | 公安部交通管理科学研究所 | Signalized intersection lane green light loss time calculation method and system |
| CN112669643A (en) * | 2021-03-16 | 2021-04-16 | 长沙理工大学 | Bus real-time scheduling and signal control method based on double-layer planning |
| CN112669643B (en) * | 2021-03-16 | 2021-06-04 | 长沙理工大学 | Bus real-time scheduling and signal control method based on double-layer planning |
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