CN105185128B - Pedestrian's street crossing signal control method based on intersection left-hand rotation dedicated phase - Google Patents
Pedestrian's street crossing signal control method based on intersection left-hand rotation dedicated phase Download PDFInfo
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Abstract
The present invention relates to a kind of pedestrian's street crossing signal control method based on intersection left-hand rotation dedicated phase, belong to the technical field of urban traffic road management and control.For between upstream and downstream intersection have section more long, on the premise of main body wagon flow is not influenceed, in pedestrian's crossing street twice guardrail facility of middle setting signal in section long control, the opening and closing signal time and upstream and downstream intersection for instructing guardrail carry out signal coordinating, time complexity curve is carried out according to existing road conditions, pedestrian's condition, the opening and closing pattern of guardrail is related to upstream and downstream signal phase.The present invention is controlled by safety island isolation guardrail, limitation pedestrian's street crossing behavior, cancel motor vehicle signal lamp, the opening and closing of pedestrian's street crossing control signal and guardrail is only set to instruct pedestrian to cross the street in order, ensure pedestrains safety, reduce the influence that the illegal activities of pedestrian are caused to motor vehicle, reduce and the probability of traffic accident occurs.The cross-road passages for pedestrians are arranged in the middle of section long, effectively reduce the street crossing time of pedestrian and around row distance.
Description
Technical field
The invention belongs to urban traffic road management and the technical field of control, it is related to integrative design intersection, ITS intelligence
The field of energy traffic system and safety traffic theory, is related specifically to the technical method in section and intersection signal linkage.
Background technology
Wang Xueyong on《Pedestrian's crossing street twice traffic organization method and applied research》Pedestrian's street crossing is systematically analyzed to set
Apply, signal control and Delay Evaluation problem, Li Na on《Section pedestrian's street crossing signal is coordinated control and is ground with intersection signal
Study carefully》Solve the problems, such as that the signal timing dial of control is coordinated in section；But existing research is primarily upon in intersection, in the road section
Signal control often using the pattern for increasing motor vehicle and walker signal lamp simultaneously, to increase vehicle delay as walking is provided
It is convenient.The present invention on this basis, makes full use of the road idle gap time, it is proposed that premised on not influenceing main body vehicle flowrate
, the crossing street twice safety devices controlled only with pedestrian signal in section are built, and mainly instruct the control of safe isolation guardrail.
The content of the invention
The technical problem to be solved in the present invention is directed to upstream and downstream has section long between the intersection of left-hand rotation dedicated phase (such as
Accompanying drawing 3), on the premise of not influenceing main body wagon flow and ensureing pedestrains safety, in the pedestrian of middle setting signal in section long control
Crossing street twice guardrail facility, reduce pedestrian's street crossing in the middle of section long around row distance.Wherein, pedestrian's crossing street twice guardrail is opened
Close signal time and carry out signal coordinated control with upstream and downstream intersection, and the time is carried out according to existing road conditions, pedestrian's condition
Amendment, the opening and closing pattern of guardrail is related to upstream and downstream signal phase.
The technical scheme is that：
When thing upstream intersection left-hand rotation dedicated phase is let pass (second phase), upstream intersection east exit road except
There is no other vehicle pass-throughs outside a small amount of right-hand bend vehicle.Using this neutral, on the premise of vehicle body wagon flow is not influenceed, OK
People can arrive safely safety island using underpass, and wait street crossing in safety island.When downstream intersection thing is turned left specially
When being let pass with phase, downstream intersection west exit road does not have other vehicle pass-throughs in addition to a small amount of right-hand bend vehicle, and pedestrian can be with
Arrived at across the street by safety island using this neutral, complete street crossing behavior (specific schematic diagram is shown in accompanying drawing 4).
Wherein open and close type pedestrian's street crossing isolation guardrail concrete structure include pedestrian's street crossing request button, pedestrian's indicator lamp, solely
Vertical opening and closing guardrail, four parts of safety island.Street crossing request button is pressed when pedestrian has street crossing demand, system can engage upstream and downstream
Intersection timing scheme, determines the display of pedestrian's indicator lamp and the unlatching of independent opening and closing guardrail.Open and close type pedestrian isolation guardrail is protected
Safety island is set up inside column.It is as follows by pedestrian's indicator lamp step：
(1) pedestrian's street crossing signal is configured
According to the scheme of upstream and downstream Intersections timing, pedestrian's mistake is primarily determined that according to signalized intersections timing theory
Street green time theoretical assessment
Pedestrian's red time
Pedestrian's green time
In formula：
TgFor motor vehicle can pass through phase time, TrIt is motor vehicle impassabitity phase time, S is pavement to road upstream
The distance of cross junction, vpIt is pedestrian crossing speed, vvIt is motor vehicle speed degree, b is sidewalk width, and l is motor-driven vehicle commander, d
It is bicycle road width.
After determining pedestrian's street crossing green time, further according to road basic condition (including link length width, evenness of road surface
Degree, road gradient, motor vehicle flow, motor vehicle density, motor-driven vehicle going behavior) and pedestrian's feature (including pedestrian's quantity, age
Distribution, sex, health degree) actual correction is carried out to theoretical assessment, obtain pedestrian's street crossing signal timing plan.
(2) guardrail facility is designed
(2.1) design of safety island
Open and close type pedestrian's street crossing isolation guardrail inside is safety island, and the quantity for accommodating pedestrian is determined according to its size, is located at
At center line of road；Safety island length is defined according to the design of urban road facility related specifications, width by taking track area minimum
Then, the influence to motor vehicle is reduced, specific width is determined by actual road conditions；
By the research to existing safety island and improvement, the model being combined with boat form using induction type.
It is general to select induction type safety island in the case where road width is limited, bigger being resident can be provided for pedestrian
Space；If driver's sight line is not blocked in the design of safety island on this basis, boat form safety island can be selected, peace can be provided for pedestrian
All risk insurance hinders.
(2.2) it is opened and closed pattern
According to pedestrian's street crossing signal, the opening and closing pattern of guardrail is controlled to instruct pedestrian to cross the street in order；In open and close type pedestrian's street crossing
Isolation guardrail both direction is respectively the guardrail of independent opening and closing, and is provided with corresponding pedestrian's street crossing indicator lamp；According to step
(1) time for setting, both sides pedestrian's street crossing is carried out in strict accordance with the instruction of indicator lamp, when green light is lighted, pedestrian's street crossing indicator lamp
Countdown starts, and guardrail is opened, and pedestrian's street crossing enters safety island；When green light closes to an end, indicator lamp prompting is introduced into road
Pedestrian curbside wait；When green light countdown terminates, red light is lighted, and guardrail is closed, and no longer allows pedestrian to enter safety island, not
The pedestrian that can be crossed the street waits next signal for allowing street crossing to pass through again in roadside；
Guardrail three kinds of modes of opening and closing point：1) guardrails of both sides is opened simultaneously, it is allowed to which pedestrian once crosses the street；2) side rail is beaten
Open, a side rail is closed, it is allowed to which the side road that pedestrians travel opens guardrail enters another side rail opening of safety island wait again
Pass through opposite side road；3) guardrails of both sides is simultaneously closed off, and does not allow pedestrian's street crossing；
(2.2.1) pedestrian once crosses the street pattern
When pedestrian gathers certain amount and has street crossing demand, if there is wagon flow space, signal in corresponding one side road
It is green light, then the guardrail for corresponding to side is opened, and display lamp prompting " can pass through " and green time countdown is given to pedestrian,
Pedestrian passes through one-way road within the green light stipulated time, and into safety island, there is wagon flow space, Hang Renxin just in other direction simultaneously
Number it is green light, and duration is met the time required to pedestrian passes through road completely, it is allowed to and pedestrian stops direct complete not in safety island
Into once crossing the street；
(2.2.2) pedestrian crossing street twice pattern
When pedestrian gathers certain amount and has street crossing demand, corresponding one side road signal is green, and guardrail is opened
Let pass, pedestrians travel's road enters safety island, other direction road has continuous wagon flow, and corresponding pedestrian signal is red light, it is desirable to OK
People stops wait in safety island, and shows stand-by period countdown by indicator lamp, until opposite side signal is green light,
It is opened and closed corresponding guardrail clearance to pass through, completes pedestrian's crossing street twice.
The invention has the advantages that：
Under the signal coordinated signals described by Li Na, the purpose of pedestrian's street crossing can be preferably completed, but signal lamp
Design still can have no small influence to the delay of motor vehicle.Our scheme is controlled by safety island isolation guardrail,
Limitation pedestrian's street crossing behavior, so as to cancel motor vehicle signal lamp, only sets pedestrian's street crossing control signal, and this is a very big wound
New breakthrough.Operationally, pedestrian is current according to Signalized control, and motor vehicle takes avoidance principle, is the sky of prevailing traffic mode
White mode is, it is necessary to increase new traffic ordinance regulation.By Traffic Simulation Evaluation, this scheme greatly reduces prolonging for main body wagon flow
Between mistaking, and pedestrian's street crossing demand in the middle of section long can be solved to a certain extent, time economic benefit is handed over much larger than signal
Prong and unsignalized intersection.Specifically：
1. efficient space utilization：In the midblock of major urban arterial highway, pedestrian's street crossing passage is opened up.By function path
Reasonable design and traffic organization optimization, while manner of walking more rights of way are given, still ensured major urban arterial highway area
The demand of motor vehicle right of way so that path resource is reallocated, high-efficiency and economic.
2. reachable city plate：Major urban arterial highway is generally connected to difference in functionality plate in city, more rational roads
Duan Tongdao, is capable of achieving the transfer transmission and accessibility of the stream of people and logistics between each functional areas, promotes the integration development in city,
Arouse its life and vigor.
3. people's car pattern of mutual benefit：Signal divider can instruct pedestrian's street crossing, so as to reduce influence of the pedestrian to wagon flow, make
Road is smooth；While the opening and closing of signal divider is to pedestrian crossing opportunities, it also avoid the random phenomenon passed through of pedestrian and go out
It is existing, ensure autos only.Always-on can be taken to ensure pedestrian's traffic requirement under special circumstances.Setting up for signal divider makes
Pedestrian and wagon flow mutual reciprocity and mutual benefit, embody the theory of " harmonious traffic ".
4. application prospect：China is in Rapid development stage, and the demand of traffic is increasing, and people's car contradiction also heals
Hair is serious, especially major urban arterial highway area, vehicle flowrate, and pedestrian's amount is all continuously increased, it is necessary to improve road utilization rate energetically, institute
There is very big use value with our design.Corresponding safety is designed by the timing of specific section upstream and downstream intersection
Island guardrail opening and closing signal is instructing pedestrian's street crossing.Meanwhile, such traffic design is managed and organization optimization, contains complete street
Design concept, more embodies the humanistic care in city, and people-oriented, and one is more embodied in the distribution of right of way and rationally using upper
The central characteristics of individual smart city, are the traffic new images in city.
Brief description of the drawings
Fig. 1 is structured flowchart of the invention.
Fig. 2 is appearance figure of the invention.
Fig. 3 is the intersection phase diagram that the applicable one of which of the present invention has left-hand rotation dedicated phase.
Fig. 4 is the pedestrian's street crossing signal control method schematic diagram of left-hand rotation dedicated phase in intersection in the present invention.
Fig. 5 is embodiment of the present invention upstream and downstream intersection signal and pedestrian signal timing figure (scheme 1).
Fig. 6 is embodiment of the present invention upstream and downstream intersection signal and pedestrian signal timing figure (scheme 2).
Fig. 7 is the design sketch after the present invention is implemented.
Specific embodiment
Describe specific embodiment of the invention in detail below in conjunction with technical scheme, and simulate the implementation result of invention.
We assess the effect of Guardrail design using the stand-by period situation most long of pedestrian's street crossing.
1. basic road conditions design
According to the U.S.《HCM HCM2000》《Urban highway traffic facilities design specification GB50688-
2011》《Urban road intersection design discipline CJJ152-2010》《Urban road engineering design specification CJJ37-2012》Deng text
Offer, and based on one section of the Zhongshan Road in Dalian blue mud low-lying area CBD areas, design and simulation road conditions.East-west is trunk roads, two-way ten
Two lane highways, overall length 550m.South-north direction is branch road, two-way eight tracks.Bicycle road 3.5m wide, thing trunk roads beam overall 42m, unidirectionally
Have a lot of social connections 21m；North and south branch road beam overall 28m, unidirectionally have a lot of social connections 14m.Trunk roads upstream and downstream sets up two standard cross junctions separately, it is considered to most
Difference situation, we devise following two phasing schemes：
Scheme one：Upstream intersection prohibits left using two phase, and downstream is four phases.
Scheme two：Consider more ordinary circumstances, upstream and downstream intersection is common four phase.
2. motor vehicle flow design：
Foundation《Urban road design criterion》Road passage capability related request, obtains road actual capacity numerical value.
Amendment is compared with Daliang City's blue mud low-lying area shopping centre measured data again, vehicle flowrate data are obtained.By track point
With the flow value that turning of motor vehicle and straight trip are obtained with motor turning probability.Wherein, four phase six-lane：Turn left：Straight trip：It is right
Turn=2:3:1；Four phase Four-Lane Roads：Turn left：Straight trip：Right-hand rotation=1:2:1；Two phase six-lane：Straight trip：Right-hand rotation=11:1；Two
Phase Four-Lane Road：Straight trip：Right-hand rotation=7:1.(see the table below one, table two)
The two-way eight lane flows amount data (pcu/h) of table one
The two-way ten two lane highways vehicle flowrate data (pcu/h) of table two
3. safety island and pedestrian's amount design
By taking the bridge Zhongshan Road of Dalian blue mud low-lying area as an example, road stage casing double amber lines spacing is 0.8m, our design safety island main bodys
6m long, 1m wide, the ㎡ of area 6.Each pedestrian's occupied area takes 0.25 ㎡/people, then can be accommodated simultaneously under safety island full load condition
The people of number 24, then unilateral seating capacity is 12 people.In worst condition, pedestrian need to wait in safety island, a signal period
The interior unilateral road pedestrian traffic capacity is 12 people, then unilateral pedestrian's flow per hour is 332 people/h, and data are investigated with current demand
Degree of fitting is preferable.
4. intersection, the design of safety island guardrail signal lamp
According to related specifications and investigational data on the spot, intersection signal cycle total duration is set to 130s, and according to motor vehicle
The index Design out of phase times such as flow, delay.Due to it is contemplated that pedestrian's street crossing worst condition, pedestrian unidirectionally arrive at by street crossing
After safety island, other direction wagon flow reaches safe distance just, and pedestrian needs to be resident in safety island, until direction Clear Field Vehicle
Cross zebra crossing.In this situation, pedestrian's street crossing time delay is most long.The pedestrian signal time is calculated according to theoretical model,
Go out satisfactory multiphase traffic time allocation further according to upstream and downstream intersection timing design.Concrete signal phase relation is shown in accompanying drawing 5, accompanying drawing
6)。
5. Positive simulation results and evaluation
Our goals in research are that pedestrian's street crossing does not influence major trunk roads straight trip motor vehicle, are reached by safe distance and signal timing dial
To requiring, thus guardrail instructs the pedestrian's street crossing can't to be occasioned a delay to straight traffic and left-hand rotation car, but to upstream and downstream intersection
The vehicle turned right into trunk roads occasions a delay.Because at pedestrian's street crossing, we are provided with crossing, according to traffic method
Rule, at pavement, motor vehicle need to avoid pedestrian, and right-hand rotation car certainly will be occasioned a delay.Therefore, we are the delay to right-hand rotation car
As motor vehicle evaluation index.Simulated by VISSIM software emulations, we obtain upstream and downstream cross junction and turn right into master
The vehicle delay of arterial highway.(see the table below three, table four)
The upstream two phase of table three, the phase of downstream four
The phase of four upstream of table four, the phase of downstream four
Calculated by data, the delay of the right turning vehicle of scheme one is 4.3s, 7.8s, the delay of the right turning vehicle of scheme two is
1.3s、1.8s.For the intersection of the phase of common upstream and downstream four, right-hand rotation car delay very little.For pedestrian, originally only from intersection
The time of street crossing is significantly longer, and road stage casing provides oppotunity to cross street to pedestrian, reduces intersection street pedestrian amount, alleviates
People from intersection car contradiction, is conducive to improving the street crossing efficiency of pedestrian and motor vehicle, alleviates the traffic pressure in city CBD areas.It is (imitative
True design sketch is shown in accompanying drawing 7)
Simulated roadway stage casing pedestrian's crossing street twice, the more reachable manner of walking of safety cause the region being relatively isolated originally
Module is organically connected, and the increase of stream of people's logistics promotes the economic development of CBD commercial circles, the reasonable efficient profit of path space
With, the realization of road complete function, these are all conducive to calling out CBD life and vigor again.
Claims (1)
1. a kind of pedestrian's street crossing signal control method based on intersection left-hand rotation dedicated phase, it is characterised in that pedestrian's street crossing is believed
The open and close type pedestrian's street crossing isolation guardrail that number control method is used includes pedestrian's street crossing request button, pedestrian's indicator lamp, independently opens
Close four parts of guardrail and safety island；Street crossing request button is pressed when pedestrian has street crossing demand, engagement upstream and downstream intersection is matched somebody with somebody
When scheme, determine the display of pedestrian's indicator lamp and the unlatching of independent opening and closing guardrail, set inside open and close type pedestrian's street crossing isolation guardrail
Vertical safety island；Step is as follows：
(1) pedestrian's street crossing signal is configured
According to the scheme of upstream and downstream Intersections timing, primarily determine that pedestrian's street crossing is green according to signalized intersections timing theory
Lamp time theory estimated value
Pedestrian's red time
Pedestrian's green time
In formula：
TgFor motor vehicle can pass through phase time, TrIt is motor vehicle impassabitity phase time, S is that pavement is handed over to upstream cross
The distance of prong, vpIt is pedestrian crossing speed, vvIt is motor vehicle speed, b is sidewalk width, and l is motor-driven vehicle commander, and d is bicycle road
Width；
After determining pedestrian's street crossing green time, repaiied further according to road basic condition and pedestrian's feature are actual to theoretical assessment
Just, pedestrian's street crossing signal timing plan is obtained, road basic condition includes link length, width, surface evenness, road surface slope
Degree, motor vehicle flow, motor vehicle density and motor-driven vehicle going behavior, pedestrian's feature include pedestrian's quantity, age distribution, sex and
Health degree；
(2) guardrail facility is designed
(2.1) design of safety island
Open and close type pedestrian's street crossing isolation guardrail inside is safety island, and the quantity for accommodating pedestrian is determined according to its size, positioned at road
Midline；Safety island length is subtracted according to the design of urban road facility related specifications, width with taking the minimum criterion of track area
The small influence to motor vehicle, specific width is determined by actual road conditions；
(2.2) it is opened and closed pattern
According to pedestrian's street crossing signal, the opening and closing pattern of guardrail is controlled to instruct pedestrian to cross the street in order；In the isolation of open and close type pedestrian's street crossing
Guardrail both direction is respectively the guardrail of independent opening and closing, and is provided with corresponding pedestrian's street crossing indicator lamp；Set according to step (1)
The time put, both sides pedestrian's street crossing is carried out in strict accordance with the instruction of indicator lamp, when green light is lighted, pedestrian's street crossing indicator lamp countdown
Start, guardrail is opened, pedestrian's street crossing enters safety island；When green light closes to an end, indicator lamp prompting is introduced into the pedestrian of road
Waited in curbside；When green light countdown terminates, red light is lighted, and guardrail is closed, and no longer allows pedestrian to enter safety island, fails street crossing
Pedestrian roadside wait it is next allow street crossing signal pass through again；
Guardrail three kinds of modes of opening and closing point：1) guardrails of both sides is opened simultaneously, it is allowed to which pedestrian once crosses the street；2) side rail is opened, and one
Side rail is closed, it is allowed to which the side road that pedestrians travel opens guardrail waits another side rail opening to pass through another again into safety island
Side road；3) guardrails of both sides is simultaneously closed off, and does not allow pedestrian's street crossing；
(2.2.1) pedestrian once crosses the street pattern
When pedestrian gathers certain amount and has street crossing demand, if wagon flow space occurs in corresponding one side road, signal is green
Lamp, the then guardrail for corresponding to side is opened, and display lamp prompting " can pass through " and green time countdown, pedestrian are given to pedestrian
One-way road is passed through within the green light stipulated time, and into safety island, there is wagon flow space just in other direction simultaneously, and pedestrian signal is
Green light, and duration met the time required to pedestrian passes through road completely, it is allowed to and pedestrian stops not in safety island and is done directly one
Secondary street crossing；
(2.2.2) pedestrian crossing street twice pattern
When pedestrian gathers certain amount and has street crossing demand, corresponding one side road signal is green, and guardrail is opened and let pass,
Pedestrians travel's road enters safety island, and other direction road has continuous wagon flow, and corresponding pedestrian signal is red light, it is desirable to which pedestrian is in peace
Stopped in full island waits, and stand-by period countdown is shown by indicator lamp, until opposite side signal is green light, be opened and closed phase
The guardrail answered is let pass and is passed through, and completes pedestrian's crossing street twice.
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| CN107730886B (en) * | 2017-10-16 | 2020-07-03 | 北方工业大学 | Dynamic optimization method for traffic signals at urban intersections in Internet of vehicles environment |
| CN108806239B (en) * | 2018-06-15 | 2020-12-08 | 公安部交通管理科学研究所 | Pedestrian crossing control system and method based on upstream and downstream signalized intersection coordination |
| CN109949585B (en) * | 2019-03-29 | 2021-11-19 | 上海理工大学 | Method for setting special phase for pedestrian at intersection controlled by two-phase signal |
| CN111477017A (en) * | 2019-12-26 | 2020-07-31 | 李成利 | Technology for promoting safe passing of people and vehicles at urban main road intersection |
| CN113034896B (en) * | 2021-02-10 | 2022-04-19 | 长安大学 | Signal traffic system based on time compensation |
| CN113421440B (en) * | 2021-05-18 | 2022-06-17 | 东南大学 | Dynamic traffic signal control method for secondary crossing intersection of pedestrian |
| CN113421441B (en) * | 2021-05-20 | 2022-06-24 | 东南大学 | Method and system for controlling secondary street crossing dynamic traffic signals of pedestrians on road section |
| CN114530046A (en) * | 2022-01-28 | 2022-05-24 | 启迪设计集团股份有限公司 | Method and device for judging requirement of setting right turn signal lamp at intersection |
| CN114648877B (en) * | 2022-05-13 | 2022-08-09 | 北京理工大学前沿技术研究院 | Method, system, equipment and storage medium for vehicle passing at signalless intersection |
| CN115762118B (en) * | 2022-11-23 | 2023-11-07 | 东南大学 | Induction type street crossing assisting method for visually impaired people at large-scale intersection |
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| DE19736270A1 (en) * | 1996-09-18 | 1998-03-19 | Ammann Hans Rudolf | Traffic safety device for pedestrian crossing |
| CN100418117C (en) * | 2006-11-24 | 2008-09-10 | 东南大学 | Automatic control method for green wave of pedestrian crossing street signal lamp |
| US8063795B2 (en) * | 2009-02-26 | 2011-11-22 | David Ross | Pedestrian activated stop sign |
| CN103295404B (en) * | 2013-06-19 | 2015-02-11 | 东南大学 | Road section pedestrian traffic signal control system based on pedestrian crossing clearance time |
| CN103871256A (en) * | 2014-03-19 | 2014-06-18 | 同济大学 | Intersection passage control method achieving left turning through exit lanes |
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