CN107025792A - The method of adjustment and device in track and signal lamp cycle based on vehicle queue length - Google Patents
The method of adjustment and device in track and signal lamp cycle based on vehicle queue length Download PDFInfo
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- CN107025792A CN107025792A CN201710313071.0A CN201710313071A CN107025792A CN 107025792 A CN107025792 A CN 107025792A CN 201710313071 A CN201710313071 A CN 201710313071A CN 107025792 A CN107025792 A CN 107025792A
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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Abstract
The invention discloses a kind of track based on vehicle queue length and the method for adjustment and device of signal lamp cycle, method comprises the following steps：The instantaneous vehicle queue length in each track is detected using the video detecting device；Average queue length of each track of different track attributes in setting time is calculated respectively using the analytic unit；The ratio of the average queue length between the track of different track attributes is calculated using the analytic unit；Described control unit adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp according to the ratio of the average queue length between the tracks of the different track attributes.Implement the track based on vehicle queue length of the present invention and the method for adjustment and device of signal lamp cycle, have the advantages that：Crossing traffic efficiency can be improved by changeable driveway and variable signal lamp phase cycling.
Description
Technical field
The present invention relates to intelligent transportation field, more particularly to a kind of track and signal lamp cycle based on vehicle queue length
Method of adjustment.
Background technology
With expanding economy, the phenomenon of urban road congestion is also increasingly serious.Intersection is the bottleneck of urban road,
The vehicle pass-through efficiency of intersection directly affects the traffic efficiency of whole urban road.
Developed countries just develop the Self Adaptive Controls such as representational SCOOT, SCATS in the seventies in last century
System, is reducing stop frequency, certain effect is achieved in terms of improving crossing traffic efficiency.The country in the prior art, is being disclosed
Number be CN1441369A, it is entitled《Traffic control method and facility》Application for a patent for invention in, according to default or from dynamic
The program step of optimising and adjustment and intelligence is answered, wagon flow is arranged in orderly permutation, realizes multilane without intersecting or less intersect
The wagon flow method that continuously or discontinuously row array is passed through (abbreviation row array formula is passed through), the current effect at the raising crossing that can be maximized
Rate.
According to default design of scheme track direction attribute and in the case of the traffic signal timing cycle, either common road
Mouth scheme or row array formula transit scenario, all there may be some track saturations, and some tracks are idle, and some phase cyclings are satisfied
With the idle situation of some phase cyclings.The distribution of left-hand rotation Through Lane number and the traffic signal timing ratio of different directions,
Typically it is designed according to the historical statistics wagon flow data at each crossing.Because the direction of wagon flow and number are in regularity
On the basis of have its randomness again, even if take into account the wagon flow aspect ratio features of different periods during design, it is also difficult to accomplish one
Straight balance.The vehicle queue length monitored in real time according to different directions track come automatic sensing optimising and adjustment track direction attribute and
The traffic signal timing cycle is only more scientific and reasonable scheme.
Publication No. CN103985264A, it is entitled《It is a kind of to reduce the crossing control system of crossing queue length
And method》Application for a patent for invention in, the continuous tracking by video tracking unit to queuing vehicle obtains the car currently queued up
Need that the green light cycle required for crossing could be passed through according to current queuing vehicle by crossing by several green light cycles
Number, quantitative judgement present period traffic status belongs to peak period, flat peak period or offpeak period, and then adjusts signal
Lamp control strategy.Although it is also using the method detected in real time, the duration of whole signal lamp cycle is simply adjusted, without
Optimizing and revising for timing scheme is carried out according to the queuing in different directions track or idle condition.
The content of the invention
The technical problem to be solved in the present invention is that the drawbacks described above for prior art can be by variable there is provided one kind
Track and variable signal lamp phase cycling improve track based on vehicle queue length and the signal lamp cycle of crossing traffic efficiency
Method of adjustment and device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of track based on vehicle queue length of construction
And the method for adjustment of signal lamp cycle, applied to road junction roadway and signal automatic sensing optimising and adjustment system, the road junction roadway
It is described and signal automatic sensing optimising and adjustment system includes the video detecting device, analytic unit and the control unit that are sequentially connected
Method comprises the following steps：
A the instantaneous vehicle queue length in each track) is detected using the video detecting device；
B) average queuing of each track of different track attributes in setting time is calculated respectively using the analytic unit
Length；
C the ratio of the average queue length between the track of different track attributes) is calculated using the analytic unit；
D) described control unit is according to the ratio of the average queue length between the tracks of the different track attributes, adjustment
Corresponding track attribute or the cycle duration for adjusting corresponding signal lamp.
In the method for adjustment of the track of the present invention based on vehicle queue length and signal lamp cycle, the track
Attribute include it is eastbound, head west, Nan Hang, northern row with turning left, straight trip and the combination turned right.
In the method for adjustment of the track of the present invention based on vehicle queue length and signal lamp cycle, when it is described not
With the average queue length between the track of track attribute ratio be more than the first setting value when, average queue length is shorter
The state in track is set to the average longer track of queuing up, or described control unit sends instruction, changes signal lamp
Phase duration, shortens the duration in the shorter track of average queue length being not less than on the premise of signal lamp phase is most grown in short-term
Setting time value, while the duration in the longer track of average queue length is extended into the setting time value.
In the method for adjustment of the track of the present invention based on vehicle queue length and signal lamp cycle, when it is described not
With the average queue length between the track of track attribute ratio be less than the second setting value when, average queue length is shorter
The state in track is set to the average longer track of queuing up, or described control unit sends instruction, changes signal lamp
Phase duration, shortens the duration in the shorter track of average queue length being not less than on the premise of signal lamp phase is most grown in short-term
Setting time value, while the duration in the longer track of average queue length is extended into the setting time value.
In the method for adjustment of the track of the present invention based on vehicle queue length and signal lamp cycle, described first
Setting value is 2, and second setting value is 0.5, and the setting time value is 5 seconds.
The invention further relates to a kind of method of adjustment for realizing the above-mentioned track based on vehicle queue length and signal lamp cycle
Device, applied to road junction roadway and signal automatic sensing optimising and adjustment system, road junction roadway and the signal automatic sensing is adjusted
Control optimization system includes video detecting device, analytic unit and the control unit being sequentially connected, and described device includes：
Queue length detection module：For detecting that the instantaneous vehicle queue in each track is long using the video detecting device
Degree；
Average queue length computing module：Each track for calculating different track attributes respectively using the analytic unit
Average queue length in setting time；
Ratio computing module：The average queuing between track for calculating different track attributes using the analytic unit
The ratio of length；
Control adjusting module：For making described control unit according to the average row between the tracks of the different track attributes
The ratio of team leader's degree, adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp.
In device of the present invention, the track attribute include it is eastbound, head west, Nan Hang, northern row with turning left, straight trip and
The combination of right-hand rotation.
In device of the present invention, when the ratio of the average queue length between the track of the different track attributes
During more than the first setting value, the state in the shorter track of average queue length is set to the average longer track of queuing up,
Or described control unit sends instruction, change the phase duration of signal lamp, be not less than signal lamp phase it is most long in short-term before
Put and the duration in the shorter track of average queue length is shortened into setting time value, while by the longer track of average queue length
Duration extend the setting time value.
In device of the present invention, when the ratio of the average queue length between the track of the different track attributes
During less than the second setting value, the state in the shorter track of average queue length is set to the average longer track of queuing up,
Or described control unit sends instruction, change the phase duration of signal lamp, be not less than signal lamp phase it is most long in short-term before
Put and the duration in the shorter track of average queue length is shortened into setting time value, while by the longer track of average queue length
Duration extend the setting time value.
In device of the present invention, first setting value is 2, and second setting value is 0.5, during the setting
Between value be 5 seconds.
Implement the track based on vehicle queue length of the present invention and the method for adjustment and device of signal lamp cycle, with
Lower beneficial effect：Due to detecting the instantaneous vehicle queue length in each track using video detecting device；Use analytic unit point
Average queue length of each track of different track attributes in setting time is not calculated；Different tracks are calculated using analytic unit
The ratio of average queue length between the track of attribute；Control unit is according to the average row between the tracks of different track attributes
The ratio of team leader's degree, adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp, therefore it can pass through variable car
Road and variable signal lamp phase cycling improve crossing traffic efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is road junction roadway and the structural representation of signal automatic sensing optimising and adjustment system；
Fig. 2 is implemented for the method for adjustment and device one of track of the present invention based on vehicle queue length and signal lamp cycle
The flow chart of method in example；
Fig. 3 is to set the schematic diagram of changeable driveway at crossing；
Fig. 4 is the control flow and signal lamp phase demonstration graph using row array formula Traffic control method at crossing；
Fig. 5 is the structural representation of device in the embodiment；
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
, should in the method for adjustment and device embodiment of track of the present invention based on vehicle queue length and signal lamp cycle
The method of adjustment in track and signal lamp cycle based on vehicle queue length is applied to road junction roadway and signal automatic sensing regulates and controls
Optimization system, Fig. 1 is the structural representation of road junction roadway and signal automatic sensing optimising and adjustment system.In Fig. 1, the road junction roadway
And signal automatic sensing optimising and adjustment system includes the video detecting device, analytic unit and the control unit that are sequentially connected.
Fig. 2 is track of the present invention based on vehicle queue length and the flow chart of the method for adjustment of signal lamp cycle, Fig. 2
In, the method for adjustment for being somebody's turn to do the track based on vehicle queue length and signal lamp cycle comprises the following steps：
Step S01 detects the instantaneous vehicle queue length in each track using video detecting device：In this step, using outstanding
The video detecting device of hanging installation detects the instantaneous vehicle queue length in each track.
Step S02 calculates average queuing of each track of different track attributes in setting time using analytic unit respectively
Length：In this step, average queuing of each track of different track attributes in setting time is calculated respectively using analytic unit
Length, track attribute include it is eastbound, head west, Nan Hang, northern row with turning left, straight trip and the combination turned right, i.e. track attribute include east
Row left-hand rotation, eastbound straight trip, eastbound right-hand rotation, the left-hand rotation that heads west, the straight trip that heads west, the right-hand rotation that heads west, southern row left-hand rotation, southern row straight trip, southern row are right
Turn, northern row turns left, northern row straight trip and northern row are turned right etc..In the present embodiment, setting time can be 10 minutes, certainly, in this reality
Under the certain situation for applying example, the size of setting time can also be adjusted accordingly as the case may be.
Step S03 calculates the ratio of the average queue length between the track of different track attributes using analytic unit：This
In step, the ratio of the average queue length between the track of different track attributes, such as an eastbound left side are calculated using analytic unit
Change trains or buses and eastbound Through Lane queue length ratio r, it is assumed that the average queue length of eastbound left turn lane is L, eastbound straight
The average queue length of runway is S, then r=L/S.
Step S04 control units adjust phase according to the ratio of the average queue length between the tracks of different track attributes
The track attribute or the cycle duration of adjustment corresponding signal lamp answered：In this step, control unit is according to the cars of different track attributes
The ratio of average queue length between road, adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp.For example：
If r>2, then a Through Lane can be set to left turn lane, or the phase cycling duration of increase left-hand rotation green light is reduced directly
The phase cycling duration of row green light；If r<0.5, then a left turn lane can be set to Through Lane, or reduce
The phase cycling duration of the phase cycling duration increase straight trip green light of green light.The method of the present invention is by using unsaturated track
Phase cycling duration and locational space dredge the vehicle flowrate in supersaturated track, in the case where not increasing additional roads facility,
Maximized utilization existing road, improves traffic efficiency, increases the traffic capacity.Therefore it can pass through changeable driveway and variable signal
Lamp phase cycling improves crossing traffic efficiency.
In the method for the present embodiment, when the ratio of the average queue length between the track of different track attributes is more than first
During setting value, the state in the shorter track of average queue length is set to average longer track of queuing up, or control unit
Instruction is sent, changes the phase duration of signal lamp, is being not less than the length that will averagely be queued up on the premise of signal lamp phase is most grown in short-term
The duration in the shorter track of degree shortens setting time value, while when the duration in the longer track of average queue length is extended into setting
Between be worth.
In the method for the present embodiment, when the ratio of the average queue length between the track of different track attributes is less than second
During setting value, the state in the shorter track of average queue length is set to average longer track of queuing up, or control unit
Instruction is sent, changes the phase duration of signal lamp, is being not less than the length that will averagely be queued up on the premise of signal lamp phase is most grown in short-term
The duration in the shorter track of degree shortens setting time value, while when the duration in the longer track of average queue length is extended into setting
Between be worth.It is noted that in the present embodiment, the first setting value is 2, the second setting value is 0.5, and setting time value is 5 seconds, when
So, in other cases of the present embodiment, the size of the first setting value, the second setting value and setting time value can root
Adjusted accordingly according to concrete condition.
The method of the present invention is applied in the case of 4 kinds, this 4 kinds of situations illustrated separately below.
1st kind of situation, is used for a crossing with a changeable driveway, as shown in figure 3, this is by the method for the present invention
One five track crossing, including a right-turn lane, two Through Lanes, a left turn lane and a changeable driveway.Assuming that
The original state of changeable driveway is set to left turn lane, road junction roadway and signal automatic sensing optimising and adjustment system first by
Video equipment detects the instantaneous vehicle queue length in each track；Then analytic unit calculates two Through Lanes in a period of time
Within average queue length (it is assumed that 10 minutes) be S, two left turn lanes (including changeable driveway) are within a period of time
Average queue length be L, when left turn lane and the queue length ratio r=L/S of Through Lane<When 0.5, control unit is sent
Instruction, changes the Warning Mark of changeable driveway, the state of changeable driveway is changed into Through Lane；Hereafter, analytic unit calculates three
Average queue length of the bar Through Lane (including changeable driveway) within a period of time is S, and a left turn lane is at one section
Between within average queue length be L, when left turn lane and the queue length ratio r=L/S of Through Lane>When 2, control unit
Instruction is sent, changes the Warning Mark of changeable driveway, the state of changeable driveway is changed to left turn lane；Hereafter above-mentioned behaviour is repeated
Make.
2nd kind of situation, is used for a fixed track direction attribute, two Through Lanes and two left-hand rotation cars by the method for the present invention
The phase of the crossing in road, crossing straight trip green light and left-hand rotation green light is separated, it is assumed that is kept straight on 30 seconds, is turned left 20 seconds under original state.
Road junction roadway and signal automatic sensing optimising and adjustment system detect the instantaneous vehicle queue in each track first by video equipment
Length；Then analytic unit calculate the average queue length of (it is assumed that 10 minutes) within a period of time of two Through Lanes be
S, average queue length of two left turn lanes within a period of time is L, when the queue length of left turn lane and Through Lane
Ratio r=L/S<When 0.5, control unit sends instruction, changes the phase cycling duration of signal lamp, is being not less than signal lamp phase
Left-hand rotation duration is shortened 5 seconds on the premise of most growing in short-term, while will straight trip cycle stretch-out 5 seconds；When left turn lane and Through Lane
Queue length ratio r>When 2, control unit sends instruction, changes the phase cycling duration of signal lamp, is being not less than signal lamp
Straight trip duration is shortened 5 seconds by phase on the premise of most growing in short-term, while by left-hand rotation cycle stretch-out 5 seconds；Hereafter aforesaid operations are repeated.
In above two applicable cases, the wagon flow of each direction of the four corners of the world at crossing is separately controlled, and shadow is had no each other
Ring.3rd kind of situation, is used for a fixed track direction attribute by the method for the present invention, there is the cross of four directions in the four corners of the world
Crossing, the crossing, which is turned right, right-hand rotation dedicated Lanes, and simultaneously, a complete signal lamp is all for the phase of straight trip green light and left-hand rotation green light
Phase be it is eastbound turn left straight trip green light 30 seconds, head west left-hand rotation straight trip green light 30 seconds, and southern row turns left straight trip green light 30 seconds, and northern row turns left straight
Row green light 30 seconds.Road junction roadway and signal automatic sensing optimising and adjustment system detect the wink in each track first by video equipment
When vehicle queue length；Then analytic unit calculates eastbound all tracks within a period of time (it is assumed that 10 minutes) and is averaged
Queue length is E, and average queue length of all tracks within a period of time that head west is W, and southern all tracks of row are at one section
Between within average queue length be S, average queue length of the northern all tracks of row within a period of time be N.Assuming that institute
Most long for eastbound direction in directive average queue length, most short for northern line direction, analytic unit calculates track and queued up
Length ratio r=E/N, works as r>When 2, control unit sends instruction, changes signal lamp phase duration, is being not less than signal lamp phase
Most in short-term grow on the premise of by northern row turn left straight trip long green light time shorten 5 seconds, while by it is eastbound turn left keep straight on long green light time extension 5
Second；Hereafter aforesaid operations are repeated.
4th kind of situation, it is entitled by the method for the present invention applied to Publication No. CN103985264A《A kind of energy
Reduce the crossing control system and method for crossing queue length》Application for a patent for invention in.Row array formula crossing is substantially one
Two grades of changeable driveway crossings, wagon flow waits traffic lights to indicate to enter row array area in the Dai Pai areas of the first order, in row array area according to Fig. 4
Shown semaphore phase arrangement passes through crossing.Because the wagon flow of identical steering is arranged at row array together, road can be greatly improved
The traffic efficiency of mouth.In common intersection annunciator phase strategy in 3rd kind of situation, every track is only in whole belisha beacon
A quarter time of phase cycling be current, and the phase arrangement in Fig. 4 in (A) and Fig. 4 in (B) causes every track
It is current in 1/2nd times of whole belisha beacon phase cycling, the phase arrangement in Fig. 4 in (C) and Fig. 4 in (D)
So that every track is current in 3/4ths times of whole belisha beacon phase cycling.
Follow principle of the 1st kind of situation into the 3rd kind of situation, it is easy to apply the method for the invention to row array formula crossing
In.For example when north-south through vehicles queue length is considerably longer than East and West direction through vehicles queue length, it is being not less than signal
Lamp phase shortens the keep straight on phase cycling duration of green light of East and West direction on the premise of most growing in short-term, while north-south is kept straight on green light
Phase cycling duration extension；Again for example when south orientation left-hand rotation queue length is considerably longer than south orientation straight trip queue length, and north orientation is straight
Row queue length and north orientation left-hand rotation queue length are roughly equal, when being not suitable for adjustment semaphore phase, can increase south orientation left-hand rotation
Number of lanes, by all tracks arranged to left turn traffic, right-hand rotation wagon flow and straight traffic row array together.
The invention further relates to a kind of method of adjustment for realizing the above-mentioned track based on vehicle queue length and signal lamp cycle
Device, should device be applied to road junction roadway and signal automatic sensing optimising and adjustment system, the road junction roadway and signal are automatic
Sensing optimising and adjustment system includes video detecting device, analytic unit and the control unit being sequentially connected.Fig. 5 is in the present embodiment
The structural representation of device.
In Fig. 5, the device includes queue length detection module 1, average queue length computing module 2, ratio computing module 3
With control adjusting module 4；Wherein, queue length detection module 1 is used to detect the instantaneous of each track using video detecting device
Vehicle queue length；Average queue length computing module 2 is used for each car for calculating different track attributes respectively using analytic unit
Average queue length of the road in setting time；Track attribute include it is eastbound, head west, Nan Hang, northern row with turning left, straight trip and turn right
Combination, i.e., track attribute include eastbound left-hands rotation, it is eastbound straight trip, eastbound right-hand rotation, the left-hand rotation that heads west, the straight trip that heads west, the right-hand rotation that heads west, southern
Row turns left, southern row is kept straight on, south row is turned right, northern row turns left, north row is kept straight on and northern row is turned right etc..In the present embodiment, setting time can
To be 10 minutes, certainly, under the certain situation of the present embodiment, the size of setting time can also carry out phase as the case may be
It should adjust.Ratio computing module 3 is used to calculate the average queue length between the track of different track attributes using analytic unit
Ratio；Control adjusting module 4 is used to make control unit according to the average queue length between the tracks of different track attributes
Ratio, adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp.For example：If r>2, then can be by a straight trip
Track is set to left turn lane, or increases the phase cycling duration of the phase cycling duration reduction straight trip green light of left-hand rotation green light；
If r<0.5, then a left turn lane can be set to Through Lane, or reduce the phase cycling duration increase of left-hand rotation green light
The phase cycling duration of straight trip green light.The present invention method by using unsaturated track phase cycling duration and locational space
To dredge the vehicle flowrate in supersaturated track, in the case where not increasing additional roads facility, maximized utilization existing road is carried
High pass line efficiency, increases the traffic capacity.Therefore it can improve crossing by changeable driveway and variable signal lamp phase cycling and pass through
Efficiency.
In the device of the present embodiment, when the ratio of the average queue length between the track of different track attributes is more than first
During setting value, the state in the shorter track of average queue length is set to average longer track of queuing up, or control unit
Instruction is sent, changes the phase duration of signal lamp, is being not less than the length that will averagely be queued up on the premise of signal lamp phase is most grown in short-term
The duration in the shorter track of degree shortens setting time value, while when the duration in the longer track of average queue length is extended into setting
Between be worth.
In the device of the present embodiment, when the ratio of the average queue length between the track of different track attributes is less than second
During setting value, the state in the shorter track of average queue length is set to average longer track of queuing up, or control unit
Instruction is sent, changes the phase duration of signal lamp, is being not less than the length that will averagely be queued up on the premise of signal lamp phase is most grown in short-term
The duration in the shorter track of degree shortens setting time value, while when the duration in the longer track of average queue length is extended into setting
Between be worth.It is noted that in the present embodiment, the first setting value is 2, the second setting value is 0.5, and setting time value is 5 seconds, when
So, in other cases of the present embodiment, the size of the first setting value, the second setting value and setting time value can root
Adjusted accordingly according to concrete condition.
In a word, the present invention improves crossing traffic efficiency by changeable driveway and variable signal lamp phase cycling, solves existing
According to default design of scheme track direction attribute and in the case of the traffic signal timing cycle in technology, there is some tracks and letter
Number phase unsaturation, and other tracks and the oversaturated problem of signal phase.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of method of adjustment in track and signal lamp cycle based on vehicle queue length, it is characterised in that applied to crossing
Track and signal automatic sensing optimising and adjustment system, road junction roadway and signal automatic sensing the optimising and adjustment system are included successively
Video detecting device, analytic unit and the control unit of connection, methods described comprise the following steps：
A the instantaneous vehicle queue length in each track) is detected using the video detecting device；
B) average queue length of each track of different track attributes in setting time is calculated respectively using the analytic unit；
C the ratio of the average queue length between the track of different track attributes) is calculated using the analytic unit；
D) described control unit is according to the ratio of the average queue length between the tracks of the different track attributes, and adjustment is corresponding
Track attribute or adjust corresponding signal lamp cycle duration.
2. the method for adjustment in track and signal lamp cycle according to claim 1 based on vehicle queue length, its feature
Be, the track attribute include it is eastbound, head west, Nan Hang, northern row with turning left, straight trip and the combination turned right.
3. the method for adjustment in track and signal lamp cycle according to claim 2 based on vehicle queue length, its feature
It is, will be average when the ratio of the average queue length between the track of the different track attributes is more than the first setting value
The state in the shorter track of queue length is set to the average longer track of queuing up, or described control unit sends finger
Order, changes the phase duration of signal lamp, on the premise of signal lamp phase is most grown in short-term that average queue length is shorter being not less than
The duration in track shorten setting time value, while the duration in the longer track of average queue length is extended into the setting time
Value.
4. the method for adjustment in track and signal lamp cycle according to claim 2 based on vehicle queue length, its feature
It is, will be average when the ratio of the average queue length between the track of the different track attributes is less than the second setting value
The state in the shorter track of queue length is set to the average longer track of queuing up, or described control unit sends finger
Order, changes the phase duration of signal lamp, on the premise of signal lamp phase is most grown in short-term that average queue length is shorter being not less than
The duration in track shorten setting time value, while the duration in the longer track of average queue length is extended into the setting time
Value.
5. the method for adjustment in track and signal lamp cycle according to claim 4 based on vehicle queue length, its feature
It is, first setting value is 2, second setting value is 0.5, the setting time value is 5 seconds.
6. a kind of method of adjustment for realizing the track as claimed in claim 1 based on vehicle queue length and signal lamp cycle
Device, it is characterised in that applied to road junction roadway and signal automatic sensing optimising and adjustment system, the road junction roadway and signal are certainly
Innervation answers optimising and adjustment system to include video detecting device, analytic unit and the control unit being sequentially connected, and described device includes：
Queue length detection module：Instantaneous vehicle queue length for detecting each track using the video detecting device；
Average queue length computing module：Each track for being calculated different track attributes respectively using the analytic unit is being set
Average queue length in fixing time；
Ratio computing module：The average queue length between track for calculating different track attributes using the analytic unit
Ratio；
Control adjusting module：For making described control unit long according to the average queuing between the tracks of the different track attributes
The ratio of degree, adjusts corresponding track attribute or adjusts the cycle duration of corresponding signal lamp.
7. according to claim 6 realize the track as claimed in claim 1 based on vehicle queue length and signal lamp
The device of the method for adjustment in cycle, it is characterised in that the track attribute include it is eastbound, head west, Nan Hang, northern row with turning left, it is straight
Row and the combination turned right.
8. according to claim 7 realize the track as claimed in claim 1 based on vehicle queue length and signal lamp
The device of the method for adjustment in cycle, it is characterised in that when the average queue length between the track of the different track attributes
When ratio is more than the first setting value, the state in the shorter track of average queue length is set to the average longer car of queuing up
Road, or described control unit send instruction, change the phase duration of signal lamp, are being not less than what signal lamp phase was most grown in short-term
Under the premise of the duration in the shorter track of average queue length is shortened into setting time value, while by the longer car of average queue length
The duration in road extends the setting time value.
9. according to claim 7 realize the track as claimed in claim 1 based on vehicle queue length and signal lamp
The device of the method for adjustment in cycle, it is characterised in that when the average queue length between the track of the different track attributes
When ratio is less than the second setting value, the state in the shorter track of average queue length is set to the average longer car of queuing up
Road, or described control unit send instruction, change the phase duration of signal lamp, are being not less than what signal lamp phase was most grown in short-term
Under the premise of the duration in the shorter track of average queue length is shortened into setting time value, while by the longer car of average queue length
The duration in road extends the setting time value.
10. according to claim 9 realize the track as claimed in claim 1 based on vehicle queue length and signal lamp
The device of the method for adjustment in cycle, it is characterised in that first setting value is 2, second setting value is 0.5, described to set
Value of fixing time is 5 seconds.
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