CN108708238A - Intersection construction time traffic optimization design method - Google Patents
Intersection construction time traffic optimization design method Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Abstract
The invention discloses a kind of intersection construction time traffic optimization design methods, this method includes the geometry designs step and signal rate-determining steps of intersection, integrated functional zonation is arranged in import where road occupying construction intersection in geometry designs step, it flows to wagon flow for different in the out of phase of signal period and uses, and pre- stop line is set in construction area wagon flow upstream, to whether allowing wagon flow to enter integrated functional zonation to control；The signal phase arrangement that signal rate-determining steps are let pass in intersection main signal using single port counterclockwise, ensure that wagon flow starts to empty after premise is advanced into signal phase in signal phase in integrated functional zonation, pre-signal control is carried out to pre- stop line, control import direction wagon flow enters the start and end time of integrated functional zonation, and the signal timing dial parameter of main signal and pre-signal control is optimized by linear programming model.This method effectively improves the intersection traffic capacity by being optimized to intersection geometrical arrangements and signal control.
Description
Technical field
The present invention relates to a kind of intersection construction time traffic optimization design methods.
Background technology
Level-crossing is the bottleneck node of urban highway traffic, but due to road reconstruction, line layout, build underground work
The reasons such as journey, it usually needs carry out road occupying construction within the scope of intersection, cause intersection number of track-lines to reduce, the traffic capacity is made
At seriously affecting.However, being influenced caused by eliminate construction, current design is mainly by the residue in addition to occupied area of constructing
Path space re-starts lane function division, has road occupying construction for crossing inlet track as the processing of conventional cross mouth
In the case of import number of track-lines be less than section number of track-lines this feature, do not propose targetedly optimum design method.
The current traffic optimization design method in relation to the urban road intersection construction time is mainly the following：
1, conventional signalized crossing geometry designs and signal control, wherein geometry designs include intersection parking
Line position design, lane function division, the design of intersection expanded segment length etc.；China《Urban road intersection plans specification
GB50647-2011》,《Urban road engineering design specification CJJ 37-2012》,《Urban road intersection design discipline CJJ
152-2010》In have relevant regulations to it；Signal control includes signal phase phase sequence, cycle duration, green time distribution etc., generation
Table document includes《Urban traffic control》,《Traffic administration and control》Deng.Above-mentioned is to control intersection for normal signal
Design method there has been more mature technical solution at present.
2, construction time intersection geometry designs and signal control,《Single-point arterial highway intersection construction time organization optimization and signal
Control research》Equal documents combine measures, the alleviations such as an intersection lockjaw left side, one-way traffic to apply by adjusting intersection signal timing
Duration traffic congestion；Construction time highway sign and marking is arranged,《Building engineering construction scene traffic sign placement technical regulation JGJ
348-2014》In made relevant regulations, with ensure traffic circulation safety.Above-mentioned therefrom microcosmic angle carries out construction time intersection
Design, wherein intersection signal timing are carried out primarily directed to intersection in construction time transport need and the variation of number of track-lines
Adjustment, method of adjustment mainly follow conventional lines intersection signal control method；Prohibit the measures such as a left side, one-way traffic due to certain streams
To forbidden measure is taken, corresponding shunt paths are needed as support, and will lead to Vehicle By-pass and the total truck kilometer number of road network
Increase.
3, construction time regional traffic organization optimization,《The traffic organization of heavy civil engineering construction phase is studied》,《Mountainous City core
Heart district rail traffic construction period traffic organization》The angle of equal documents entire road network out of influence regional extent, in construction week
Wing net finds shunting section, is redistributed to engineering construction point neighboring area traffic flow, urban road network is made to meet city
While transport need, the service level of road network within the scope of influence area is improved, is utmostly reduced due to constructing to periphery
Negative effect caused by regional traffic.It is above-mentioned that construction infection regional extent is optimized using traffic organization from road network level,
By finding and optimizing shunting section, engineering construction point neighboring area traffic flow is redistributed, to reduce construction point periphery
Regional traffic pressure is mainly used in the larger situation of road occupying boundary of works area, such as heavy civil engineering, particularly for influence area
Each intersection in range still uses conventional cross mouth geometry designs and signal in the case where obeying whole Traffic Organization
Timing method optimizes.
Above-mentioned items technical solution does not consider intersection under road occupying condition of construction, and crossing inlet number of track-lines is less than road
This feature of section number of track-lines, using the remaining path space in addition to occupied area of constructing as the processing of conventional cross mouth.Due to applying
Work road occupying causes intersection number of track-lines to substantially reduce, while being lack of pertinence measure, and intersection capacity is caused to be accounted for by construction
Road is affected, and seriously affects the traffic capacity of intersection.
Invention content
Technical problem to be solved by the invention is to provide a kind of intersection construction time traffic optimization design methods, originally
The case where method is constructed for intersection part track by road occupying, using section number of track-lines not by the spy of road occupying construction infection
Sign on the basis of ensureing current safety, effectively improves intersection by being optimized to intersection geometrical arrangements and signal control
The mouth traffic capacity.
In order to solve the above technical problems, intersection construction time traffic optimization design method of the present invention includes intersection
Geometry designs step and signal rate-determining steps, the geometry designs step are comprehensive in import setting where road occupying construction area intersection
Close functional areas, integrated functional zonation flows to wagon flow in the out of phase of signal period and use for different, and in construction area wagon flow
Whether pre- stop line is arranged in upstream, to allowing wagon flow to enter integrated functional zonation to control；The signal rate-determining steps are intersecting
The signal phase arrangement that mouth main signal is let pass using single port counterclockwise ensures that wagon flow is before signal phase starts in integrated functional zonation
It is emptied after entering in advance with signal phase, and by carrying out pre-signal control, control import direction wagon flow to pre- stop line
Into the start and end time of integrated functional zonation, the signal timing dial parameter of main signal and pre-signal control passes through linear programming mould
Type optimizes.
Further, the geometry designs step includes setting integrated functional zonation number of track-lines, comprehensive function section length and intersection
Mouth lane function division；
The available track sum of import where the integrated functional zonation number of track-lines is road occupying construction intersection subtracts 1, indwelling
Track be special exit lane, right-turning vehicles for opposite import, behind intersection use；
The comprehensive function section length is the sum of road occupying construction area length and track Transition length, based on formula (1)
It calculates,
Li=lwi+lci (1)
In formula：I is intersection fork number, as i=1 indicate eastern import, i=2 indicate northing mouth, i=3 indicate west into
Mouth, i=4 indicate southing mouth；LiFor comprehensive function section length, lwiFor road occupying construction area length, lciFor track gradual change segment length
Degree；
Wherein：Track Transition length is calculated by formula (2),
In formula：V is design speed, WiFor track cross directional variations width；
The intersection lane function division, when integrated functional zonation as import track in use, using lanes side
Lane function is divided to mark, n is from left to right respectively setiELLeft-hand rotation dedicated Lanes, a straight left mixed runway,
niETItem straight trip dedicated Lanes, straight right mixed runway, a niERItem right-hand rotation dedicated Lanes, wherein：niEL、niET、niERRespectively by formula
(3)~(5) are calculated,
In formula：niEL、niET、niERThe respectively vehicle of left-hand rotation dedicated Lanes number, keep straight on dedicated Lanes number and right-hand rotation dedicated Lanes
Road number, qiL、qiT、qiRThe volume of traffic for respectively turning left, keeping straight on and turning right, qiFor the import total wheel traffic at the i-th fork of intersection,
niImport where constructing for road occupying is integrated functional zonation number of track-lines, place import of constructing for non-road occupying is import number of track-lines.
Further, the optimization aim of the linear programming model of the signal timing dial is that intersection vehicles throughput is maximum, is pressed
Formula (6) expression,
In formula：Z is intersection vehicles maximum throughput, and μ is intersection discharge coefficient, qiFor the i-th fork of intersection into
Mouth total wheel traffic；
The constraints of the signal timing dial linear programming model includes signal period duration, main signal timing, pre-signal
Timing and intersection saturation degree constraint；
The signal period duration constraint requirements main signal is identical as pre-signal cycle duration, and in rational maximum and most
Within the scope of small signal period duration, to ensure that it is line style model to be established model, indicated using the inverse in period, such as formula (7) institute
Show；
In formula：ξ is the inverse of signal period duration, CmaxAnd CminRespectively minimum and maximum signal period duration；
The main signal timing phase phase sequence that single port is let pass counterclockwise, when the green light of each import of main signal starts
Quarter and split should meet formula (8)~(10) requirement；
In formula：giFor intersection main signal the i-th fork import green light start time, it is used in opposite in a signal period
Time indicates, is the number between 0 to 1；λiFor intersection main signal the i-th fork import split；I is green light time interval；
The pre-signal timing is coordinated with main signal, and any import direction wagon flow need to all pass through in its opposite straight traffic
Integrated functional zonation could be entered after integrated functional zonation, and meet formula (11),
In formula：For intersection the i-th fork import pre-signal green light start time, it is used in opposite in a signal period
Time indicates, is the number between 0 to 1, LiFor comprehensive function section length, V is design speed；
Any import direction wagon flow ensure the vehicle into integrated functional zonation during main signal green light by intersection, and
And meet the main signal traffic capacity and be more than the pre-signal traffic capacity, that is, meet formula (12),
In formula：For intersection the i-th fork import pre-signal split, siIt is full for intersection the i-th fork import main signal
And flow rate,For intersection the i-th fork import pre-signal saturation volume rate；
Pre-signal green light end by the vehicle of pre- stop line before main signal green light terminates by intersection, and meet
Formula (13),
Each import saturation degree of intersection saturation degree constraint requirements is limited no more than maximum saturation, and meets formula
(14)~(15),
In formula：dmaxIt is limited for maximum saturation.
Since intersection construction time traffic optimization design method of the present invention uses above-mentioned technical proposal, i.e. this method
Geometry designs step including intersection and signal rate-determining steps, geometry designs step where road occupying construction area intersection into
Mouthful setting integrated functional zonation, integrated functional zonation flows to wagon flow in the out of phase of signal period and uses for different, and is constructing
Whether pre- stop line is arranged in region wagon flow upstream, to allowing wagon flow to enter integrated functional zonation to control；Signal rate-determining steps exist
The signal phase arrangement that intersection main signal is let pass using single port counterclockwise ensures that wagon flow is opened in signal phase in integrated functional zonation
Beginning premise empties after advancing into signal phase, and by carrying out pre-signal control, control import direction to pre- stop line
Wagon flow enters the start and end time of integrated functional zonation, and the signal timing dial parameter of main signal and pre-signal control passes through linear gauge
Model is drawn to optimize.The case where this method is constructed for intersection part track by road occupying, not using section number of track-lines
By the feature of road occupying construction infection, by being optimized to intersection geometrical arrangements and signal control, current safety is being ensured
On the basis of, effectively improve intersection capacity.
Description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is intersection schematic diagram in intersection construction time traffic optimization design method of the present invention；
Fig. 2 is road occupying construction road intersection geometrical condition schematic diagram in this method practical application.
Specific implementation mode
Embodiment is as shown in Figure 1, intersection construction time traffic optimization design method of the present invention includes the several of intersection
What design procedure and signal rate-determining steps, the geometry designs step are comprehensive in import setting where 1 intersection of road occupying construction area
Close functional areas 2, integrated functional zonation 2 flows to wagon flow in the out of phase of signal period and use for different, and in 1 vehicle of construction area
It flows upstream and pre- stop line 3 is set, to whether allowing wagon flow to enter integrated functional zonation 2 to control；The signal rate-determining steps exist
The signal phase arrangement that intersection main signal is let pass using single port counterclockwise ensures that wagon flow is in signal phase in integrated functional zonation 2
Start to empty after premise is advanced into signal phase, and by carrying out pre-signal control to pre- stop line 3, controls importer
Enter the start and end time of integrated functional zonation 2 to wagon flow, the signal timing dial parameter of main signal and pre-signal control passes through line
Property plan model optimizes.
Preferably, the geometry designs step includes 2 number of track-lines of setting integrated functional zonation, 2 length of integrated functional zonation and friendship
Prong lane function division；
The available track sum of import where 2 number of track-lines of the integrated functional zonation is road occupying construction intersection subtracts 1, stays
The track set is special exit lane, and the right-turning vehicles for opposite import, behind intersection use；
2 length of the integrated functional zonation is the sum of 1 length of road occupying construction area and track Transition length, based on formula (1)
It calculates,
Li=lwi+lci (1)
In formula：I is intersection fork number, as i=1 indicate eastern import, i=2 indicate northing mouth, i=3 indicate west into
Mouth, i=4 indicate southing mouth；LiFor comprehensive function section length, lwiFor road occupying construction area length, lciFor track gradual change segment length
Degree；
Wherein：Track Transition length is calculated by formula (2),
In formula：V is design speed, WiFor track cross directional variations width；
The intersection lane function division, when integrated functional zonation 2 is used as import track in use, using lanes side
Lane function is divided to mark, n is from left to right respectively setiELLeft-hand rotation dedicated Lanes, a straight left mixed runway,
niETItem straight trip dedicated Lanes, straight right mixed runway, a niERItem right-hand rotation dedicated Lanes, wherein：niEL、niET、niERRespectively by formula
(3)~(5) are calculated,
In formula：niEL、niET、niERThe respectively vehicle of left-hand rotation dedicated Lanes number, keep straight on dedicated Lanes number and right-hand rotation dedicated Lanes
Road number, qiL、qiT、qiRThe volume of traffic for respectively turning left, keeping straight on and turning right, qiFor the import total wheel traffic at the i-th fork of intersection,
niImport where constructing for road occupying is integrated functional zonation number of track-lines, place import of constructing for non-road occupying is import number of track-lines.
Preferably, the optimization aim of the linear programming model of the signal timing dial is that intersection vehicles throughput is maximum, is pressed
Formula (6) expression,
In formula：Z is intersection vehicles maximum throughput, and μ is intersection discharge coefficient, qiFor the i-th fork of intersection into
Mouth total wheel traffic；
The constraints of the signal timing dial linear programming model includes signal period duration, main signal timing, pre-signal
Timing and intersection saturation degree constraint；
The signal period duration constraint requirements main signal is identical as pre-signal cycle duration, and in rational maximum and most
Within the scope of small signal period duration, to ensure that it is line style model to be established model, indicated using the inverse in period, such as formula (7) institute
Show；
In formula：ξ is the inverse of signal period duration, CmaxAnd CminRespectively minimum and maximum signal period duration；
The main signal timing phase phase sequence that single port is let pass counterclockwise, when the green light of each import of main signal starts
Quarter and split should meet formula (8)~(10) requirement；
In formula：giFor intersection main signal the i-th fork import green light start time, it is used in opposite in a signal period
Time indicates, is the number between 0 to 1；λiFor intersection main signal the i-th fork import split；I is green light time interval；
The pre-signal timing is coordinated with main signal, and any import direction wagon flow need to all pass through in its opposite straight traffic
Integrated functional zonation 2 could be entered after integrated functional zonation 2, and meet formula (11),
In formula：For intersection the i-th fork import pre-signal green light start time, it is used in opposite in a signal period
Time indicates, is the number between 0 to 1, LiFor 2 length of integrated functional zonation, V is design speed；
Any import direction wagon flow ensure the vehicle into integrated functional zonation 2 during main signal green light by intersection,
And meet the main signal traffic capacity and be more than the pre-signal traffic capacity, that is, meets formula (12),
In formula：For intersection the i-th fork import pre-signal split, siIt is full for intersection the i-th fork import main signal
And flow rate,For intersection the i-th fork import pre-signal saturation volume rate；
Pre-signal green light end by the vehicle of pre- stop line before main signal green light terminates by intersection, and meet
Formula (13),
Each import saturation degree of intersection saturation degree constraint requirements is limited no more than maximum saturation, and meets formula
(14)~(15),
In formula：dmaxIt is limited for maximum saturation.
When this method concrete application, as the import of intersection east has road occupying construction area, construction area 1 to occupy 3 vehicles
Road, length 50m, intersection respectively flow to that the volume of traffic is as shown in table 1, and geometrical condition is as shown in Fig. 2.Using this method to its into
Row geometry designs and signal control optimization, and compared with traditional design scheme.Design driver is：Minimum and maximum letter
Number cycle duration CmaxAnd Cmin, 120s and 60s are taken respectively；Green light time interval I takes 4s；Main signal and pre-signal bicycle road are full
1800veh/h is taken with flow rate；Maximum saturation limits dmaxTake 1.0；Every lane width is 3.5m；Design speed V takes
30km/h；
Table 1
Detailed process is summarized as follows：
Step 1: determining that 2 number of track-lines of integrated functional zonation, eastern import are road occupying construction area by this method geometry designs step
Place import, available track sum are 5, then 2 number of track-lines of integrated functional zonation is 4, and leftmost side track is special exit lane,
It is used for left side import right-turning vehicles；
Step 2: calculating 2 length of integrated functional zonation, calculated by formula (1) and formula (2), 2 length of integrated functional zonation is 110m；
Li=lwi+lci (1)
Wherein：LwiIt is the tracks construction area length 50m, V=30, Wi=3 track=10.5 * 3.5m wide, substitutes into formula (2),
Lci=302× 10.5/155=60.9m, round numbers 60, then Li=50+60=110.
Step 3: being divided to lane function, n is respectively setiELLeft-hand rotation dedicated Lanes, 1 left straight turning road, niETItem
Keep straight on dedicated Lanes, 1 straight right lane, niERItem straight trip dedicated Lanes, niEL、niET、niERIt is calculated respectively by formula (3)~(5)；Vehicle
Function division result of calculation in road is as shown in table 2, and geometry designs optimum results are as shown in Figure 2；
Table 2
| Number of track-lines | Left-hand rotation dedicated Lanes | Left straight turning road | Straight trip dedicated Lanes | Straight right lane | Right-hand rotation dedicated Lanes |
| Eastern import | 0 | 1 | 2 | 1 | 0 |
| Western import | 0 | 1 | 2 | 1 | 0 |
| Southing mouth | 1 | 1 | 0 | 1 | 0 |
| Northing mouth | 1 | 1 | 0 | 1 | 0 |
Step 4: carrying out signal timing dial by this method signal rate-determining steps, it is excellent that above-mentioned input parameter, which is substituted into formula (6),
Change target, with the linear programming model that formula (7)~(15) are constraints, using simplex method or mathematical software (such as LINGO)
It is solved, it is as shown in table 3 to obtain signal timing plan；
Table 3
Step 5: design research, using intersection motor vehicle maximum throughput as evaluation index, to traditional design side
Case and this method are compared；In traditional design scheme, let pass and two kinds of signal timing dials of double -loop control using single port, result of calculation
As shown in table 4；Intersection geometry designs and signal control are optimized in this method, and more traditional single port is let pass and double -loop control
Two kinds of signal timing dial methods, intersection motor vehicle maximum throughput are respectively increased 23.6% and 9.1%, improve intersection
The traffic efficiency of vehicle.
Table 4
This method compared with prior art, has the following advantages and beneficial effect：
1, the present invention provides it is a kind of for intersection there are one or multiple entrance driveway have the geometry under road occupying condition of construction
Design and signal control method；
2, the present invention can make full use of remaining track of the intersection in addition to occupying track by construction, be controlled by track dynamic
System, almost all of track is all used as import track, the traffic capacity is improved；
3, the present invention is controlled by rational signal, ensured wagon flow in integrated functional zonation before phase starts in advance into
Emptying after entering with phase reduces the loss time and has ensured current safety.
The specific descriptions of above-mentioned this method application can be fully understood for ease of those skilled in the art
With using this method, those skilled in the art obviously easily can make various modifications to this method, and will be our
The General Principle of method is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to above-mentioned
Specific implementation mode, those skilled in the art's announcement according to the present invention do not depart from the improvement and repair that scope is made
Changing all should be within protection scope of the present invention.
Claims (3)
1. a kind of intersection construction time traffic optimization design method includes geometry designs step and the signal control of intersection
Step, it is characterised in that：Integrated functional zonation is arranged in import where road occupying construction area intersection in the geometry designs step, comprehensive
It closes functional areas to flow to wagon flow for different in the out of phase of signal period and use, and setting stops in advance in construction area wagon flow upstream
Fare, to whether allowing wagon flow to enter integrated functional zonation to control；The signal rate-determining steps are used in intersection main signal
The signal phase arrangement that single port counterclockwise is let pass ensures in integrated functional zonation that wagon flow starts premise in signal phase and advances into and believe
It is emptied after number phase, and by carrying out pre-signal control to pre- stop line, control import direction wagon flow enters comprehensive function
The signal timing dial parameter of the start and end time in area, main signal and pre-signal control is optimized by linear programming model.
2. intersection construction time traffic optimization design method according to claim 1, it is characterised in that：The geometry
Design procedure includes setting integrated functional zonation number of track-lines, comprehensive function section length and intersection lane function division；
The available track sum of import where the integrated functional zonation number of track-lines is road occupying construction intersection subtracts 1, the vehicle of indwelling
Road is special exit lane, and the right-turning vehicles for opposite import, behind intersection use；
The comprehensive function section length is the sum of road occupying construction area length and track Transition length, by formula（1）It calculates,
(1)
In formula：iIt is numbered for intersection fork, such asiThe eastern import of=1 expression,i=2 expression northing mouths,iThe western import of=3 expressions,i=4 tables
Show southing mouth；L i For comprehensive function section length,l wi For road occupying construction area length,l ci For track Transition length；
Wherein：Track Transition length presses formula（2）It calculates,
(2)
In formula：VFor design speed,W i For track cross directional variations width；
The intersection lane function division, when integrated functional zonation as import track in use, using driveway travel directions mark
Will divides lane function, is from left to right respectively setn iEL Left-hand rotation dedicated Lanes, a straight left mixed runway,n iET Item
Keep straight on dedicated Lanes, a straight right mixed runway,n iER Item right-hand rotation dedicated Lanes, wherein：n iEL 、n iET 、n iER Respectively by formula（3）~
（5）It is calculated,
(3)
(4)
(5)
In formula：n iEL 、n iET 、n iER The respectively track of left-hand rotation dedicated Lanes number, keep straight on dedicated Lanes number and right-hand rotation dedicated Lanes
Number,q iL 、q iT 、q iR The volume of traffic for respectively turning left, keeping straight on and turning right,q i For intersectioniThe import total wheel traffic at fork,n i It is right
The import where road occupying is constructed is integrated functional zonation number of track-lines, place import of constructing for non-road occupying is import number of track-lines.
3. intersection construction time traffic optimization design method according to claim 1, it is characterised in that：The signal
The optimization aim of the linear programming model of timing is that intersection vehicles throughput is maximum, by formula（6）It indicates,
(6)
In formula：ZFor intersection vehicles maximum throughput,μFor intersection discharge coefficient,q i For intersectioniThe import at fork is always handed over
Flux；
The constraints of the signal timing dial linear programming model includes signal period duration, main signal timing, pre-signal timing
It is constrained with intersection saturation degree；
The signal period duration constraint requirements main signal is identical as pre-signal cycle duration, and in rational minimum and maximum letter
Within the scope of number cycle duration, to ensure that it is line style model to be established model, using the expression reciprocal in period, such as formula（7）It is shown；
(7)
In formula：ξFor the inverse of signal period duration,C maxWithC minRespectively minimum and maximum signal period duration；
The main signal timing counterclockwise single port let pass phase phase sequence, the green light start time of each import of main signal and
Split should meet formula（8）~（10）It is required that；
(8)
(9)
(10)
In formula：g i For intersection main signaliFork import green light start time, the relative time being used in a signal period
It indicates, is the number between 0 to 1；λ i For intersection main signaliFork import split；IFor green light time interval；
The pre-signal timing is coordinated with main signal, and any import direction wagon flow need to all pass through synthesis in its opposite straight traffic
Integrated functional zonation could be entered behind functional areas, and meet formula（11）,
（11）
In formula：g p i For intersectioniFork import pre-signal green light start time, the relative time being used in a signal period
It indicates, is the number between 0 to 1,L i For comprehensive function section length,VFor design speed；
Any import direction wagon flow ensure the vehicle into integrated functional zonation during main signal green light by intersection, and it is full
The sufficient main signal traffic capacity is more than the pre-signal traffic capacity, that is, meets formula（12）,
（12）
In formula：λ p i For intersectioniFork import pre-signal split,s i For intersectioniFork import main signal saturated flow
Rate,s p i For intersectioniFork import pre-signal saturation volume rate；
Pre-signal green light end by the vehicle of pre- stop line before main signal green light terminates by intersection, and meet formula
（13）,
(13)
Each import saturation degree of intersection saturation degree constraint requirements is limited no more than maximum saturation, and meets formula（14）~
（15）,
(14)
(15)
In formula：d maxIt is limited for maximum saturation.
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Cited By (5)
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| CN110016844A (en) * | 2019-02-27 | 2019-07-16 | 南京林业大学 | Based on the reduction lane of narrow street design concept and its setting method |
| CN110363997A (en) * | 2019-07-05 | 2019-10-22 | 西南交通大学 | One kind having construction area intersection signal timing designing method |
| CN111369784A (en) * | 2018-12-25 | 2020-07-03 | 北京嘀嘀无限科技发展有限公司 | Method and device for controlling traffic flow of lane |
| CN112950940A (en) * | 2021-02-08 | 2021-06-11 | 中冶南方城市建设工程技术有限公司 | Traffic diversion method in road construction period |
| CN116084224A (en) * | 2023-02-01 | 2023-05-09 | 哈尔滨工业大学 | Intersection traffic design system based on dynamic lane control and vehicle running method |
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Application publication date: 20181026 Assignee: SHANGHAI JI'AN TRANSPORTATION CONSULTING CO.,LTD. Assignor: University of Shanghai for Science and Technology Contract record no.: X2021980013665 Denomination of invention: Traffic optimization design method of Road intersection during construction period Granted publication date: 20200811 License type: Common License Record date: 20211202 |