CN107447608A

CN107447608A - A kind of array type separation law of conflict for improving the urban intersection traffic capacity

Info

Publication number: CN107447608A
Application number: CN201710649044.0A
Authority: CN
Inventors: 卢辉忠; 李丽竹
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2017-12-08

Abstract

The invention discloses a kind of array type that can improve the major urban arterial highway level-crossing traffic capacity to separate law of conflict, using the secondary traffic conflict for stopping separating intersection, the subparticipation main body of current intersection is separated in advance, motor vehicle private space is formed in crossing center, the traffic conflict and interference in intersection are reduced, improves traffic efficiency；In addition, special " array area " is set between two stop lines（It is about 30 ~ 70 meters long）Using changeable driveway, pass through the signal coordinated control in front of two stop lines, unidirectional wagon flow is guided to drive into " array area ", array traffic organization is entered to the vehicle of same direct of travel, the number of track-lines of the current vehicle of increase one direction, makes giving in green time, one direction is lined up by increasing the current individual amount in unit effective time using multilane.True discovery is visited by traffic, this method can be obviously improved traffic efficiency, and theory can be used for the number of track-lines in " array area " more, and lifting is more notable.

Description

A kind of array type separation law of conflict for improving the urban intersection traffic capacity

Technical field

The present invention is to distribute traffic control and the traffic group of time and order in a kind of traffic signalization cycle between each phase Organization method, belong to traffic safety, traffic organization and traffic control technology.According to patent classification table IPC code, belong to G08G1/ 083 technical field.

Background technology

In China most cities, in order to which separation motor vehicle and non-motor vehicle, major urban arterial highway are generally adopted from section With three blocks of plates or the form of fracture of four blocks of plates, although this separating measure, Computer method can be efficiently solved on section Problem, the traffic capacity and travel speed in section can ensure substantially, but each intersection turns into urban road traffic congestion Main node, it is primarily due to have to bring together in intersection, motor vehicle, non-motor vehicle and pedestrian, will quickly leads to Row, it is diverted through and the traffic conflict point such as street crossing demand is fully incorporated in intersection function area, particularly major trunk roads and other roads The level-crossing that road is intersected or major trunk roads intersect with major trunk roads, the Vehicle flow for emphasize fast passing, being diverted through and speed After slower non-motor vehicle, pedestrian's street crossing demand are bundled into together, the confusion and signal timing dial of intersection traffic order are caused Complexity, traffic conflict and traffic delay dramatically increase, and due to the addition of non-motor vehicle, make the intersection conflict point of intersection increase 5.5 times, intersection capacity is caused seriously to be mismatched with road section capacity, traffic efficiency is low, if not carrying out effective Signal controls, and easily produces traffic disturbance situation.With the dynamic of the 60km/h desin speeds of China's major urban arterial highway and motor vehicles From the point of view of power performance, under normal circumstances, major urban arterial highway motor vehicle average speed can reach in 50km/h, but in fact, Ideally, as crossing conflict point and signal are delayed, motor vehicle average overall travel speed only has for not congestion completely 25km/h or so.In order to reduce delay, conflict point is separated over time and space, improves the traffic capacity of grade crossing, Alleviate crossing traffic congestion and traffic disturbance phenomenon, urban traffic control person is taken as widened crossing, canalization road, optimization signal Timing, a series of measures such as Dai Hang areas are set, to improve urban traffic conditions.However, these measures generally bring city Trunk roads intersect open area increase, numerous crossing inlet stop lines with to outlet stop line distance more than 50 meters, formed allusion quotation Type " big crossing " phenomenon.In " big crossing " traffic organization, because crossing area is big, by keys such as track, right of way, signal durations The restriction of factor distribution, " big crossing " traffic channelling design and traffic organization optimization difficulty are larger, and vehicle and pedestrian pass through crossing Time length, the signal period is generally partially long, equally causes traffic delay big, reduces crossing traffic efficiency.The list such as frequently encountered The situation of direction red signal duration full table more than 99 seconds, famous traffic engineering expert professor Li Keping points out previously, once mistake When street wait red time has exceeded pedestrian's patience, the probability that pedestrian's street crossing makes a dash across the red light can increased dramatically, and pedestrian waits red light Overlong time is to cause the Chinese basic reason that pedestrian running red light phenomenon remains incessant after repeated prohibition at present.

The content of the invention

Array type separates the main contents of law of conflict：Using secondary stopping line method, apart from crossing stop line about 50 ~ A stop line is set up at 100 meters, by sign label set and traffic signalization, reasonable distribution transit time, make pedestrian, It is current that non-motor vehicle can complete street crossing before intersection, it is allowed to and head end operation is turned around in advance by pedestrian's zebra stripes central opening, Crossing pedestrian street crossing zebra stripes are transferred to section, separate the subparticipation main body of current intersection in advance, such as pedestrian, non-maneuver Car, u-turn motor vehicle, in crossing central area, using the non-isolated guardrail of machine, by pedestrian, that non-motor vehicle is isolated in non-motor vehicle is special With track, motor vehicle private space is formed, the conflict and interference of intersection can be greatly reduced, improves traffic efficiency；At two On road between stop line, set in special " array area "（It is about 30 ~ 70 meters long）, using changeable driveway, in " array area " The not subdivided straight trip in track, left-hand rotation, by the signal coordinated control in front of two stop lines, guide unidirectional wagon flow to drive into " array area ", array traffic organization is entered to the vehicle of same direct of travel, the number of track-lines of the current vehicle of increase one direction, made Give in green time, one direction is lined up by increasing the current individual amount in unit effective time, improving using multilane Crossing pavement of road utilizes and the efficiency of vehicle pass-through.

Specifically, by taking the intersection of North and South direction plane orthogonal as an example, the traffic control week of array type separation law of conflict Phase step, which is gathered, is：（1）Signal control one.North and South direction straight trip motor vehicle is green light；The complete red, pedestrian of east-west direction motor vehicle signal lamp Signal lamp is green light.Now, east-west direction pedestrian, non-motor vehicle are crossed the street by pedestrian's zebra stripes, in order to reduce to pedestrian, non-machine Motor-car street crossing interference, the south orientation north to no right turn car turn right.（2）Signal control two.The stop line of east-west direction first（I.e. By direction of traffic, the stop line to stop is indicated first）Signal lamp straight trip, right turning vehicle class signal are green light, left-hand rotation and pedestrian Signal lamp is red light, the second stop line（Direction of traffic is pressed, the stop line of second of instruction parking）Signal lamp is complete red；North and south The stop line of direction second turns left, right turn signal lamp is green light.Now, east-west direction straight trip motor vehicle enters ranks into " array area " Battle array, it is allowed to which motor vehicle of keeping straight on turns to the left in phantom line segments, makes " array area " to reach multiple row through vehicles；North and South direction is in upright arrangement more Row turn left.The duration of the state is relevant with two stop line spacing and the magnitude of traffic flow, to arrange full " array area " most to grow in short-term. （3）Signal control three.The straight trip of the stop line signal lamp of east-west direction first and second, right turn signal class are green light, left-hand rotation and pedestrian signal Lamp is red light；North and South direction motor vehicle signal lamp is entirely red, walker signal lamp green light.Now east-west direction keep straight on motor vehicle array into Multiple row through vehicles, quickly through intersection, it is ensured that maximum in the straight trip motor vehicle effectively to be passed through in straight trip green time Change；North and South direction pedestrian, non-motor vehicle are crossed the street by pedestrian's zebra stripes, if the right-turning vehicles of east-west direction and North and South direction row The conflict of people's non-motor vehicle is excessive, taboo can be taken right or sign board of setting up that Stop and give way.（4）Signal control four.East-west direction first Stop line signal lamp turns left, right turn signal class is green light, and straight trip and walker signal lamp are red light, and the second stop line signal lamp is straight Row, right turn signal class are green light, and left-hand rotation is still red.Now, the through vehicles in " array area " are mainly emptied, are turned left simultaneously Vehicle, which enters, is lined up array in " array area ".The duration of the state is relevant with two stop line spacing and the magnitude of traffic flow, full to arrange " array area " is most to grow in short-term.（5）Signal control five.The stop line signal lamp of east-west direction first and second turns left, right turn signal class is Green light, straight trip and walker signal lamp are red light.Now, east-west direction left-hand rotation motor vehicle array is into 4 row left turning vehicles, quickly through Intersection, it is ensured that the left-hand rotation motor vehicle to be passed through in effective left-hand rotation green time maximizes.（6）Signal control six.Thing Direction the first stop line signal lamp is entirely red, and straight left and right turn of the second stop line signal lamp is still green；North and South direction first stops Line signal lamp straight trip signal is green light.Now mainly empty in " array area " left and right changes trains or buses.North and South direction through vehicles " array area " is carried out to wait in line to pass through.

Brief description of the drawings

The array type that Fig. 1 is the present invention separates law of conflict level-crossing setting schematic diagram.

Claims

A kind of 1. array type separation law of conflict for improving the urban intersection traffic capacity, it is characterised in that the array type point Comprise the following steps from law of conflict：（1）The traffic conflict point of separating plane intersection：Using secondary stopping line method, in distance A stop line is set up at about 50~100 meters of crossing stop line, passes through sign label setting and traffic signalization, reasonable distribution Transit time, pedestrian, non-motor vehicle is set to complete street crossing before intersection current, it is allowed to which head end operation passes through in pedestrian's zebra stripes Centre opening is turned around in advance, and crossing pedestrian street crossing zebra stripes are transferred into section, separate the subparticipation master of current intersection in advance Body, such as pedestrian, non-motor vehicle, motor vehicle is reversed end for end, in crossing central area, using the non-isolated guardrail of machine, by pedestrian, non-motor vehicle Non-motor vehicle dedicated Lanes are isolated in, form motor vehicle private space, the conflict and interference of intersection can be reduced, are improved current Efficiency；（2）Set in " array area ", guiding vehicle array passes through：On road between two stop lines, special " row are set Array area "（It is about 30~70 meters long）, using changeable driveway, the not subdivided straight trip in track, left-hand rotation in " array area ", pass through two Signal coordinated control in front of stop line, unidirectional wagon flow is guided to drive into " array area ", to the vehicle of same direct of travel Enter array traffic organization, the number of track-lines of the current vehicle of increase one direction, make giving in green time, one direction uses more cars Line up by increasing the current individual amount in unit effective time, improving crossing pavement of road and utilize and vehicle pass-through in road Efficiency.