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Traffic flow multiplication method for diversiform traffic light crossing

A technology of intersections and traffic flow, applied in the directions of roads, roads, buildings, etc., can solve the problems of road utilization coefficient falling to 0, low efficiency, etc., and achieve the effect of improving road utilization coefficient

Inactive Publication Date: 2008-07-09
肖新凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

], often less than 23%; in extreme cases, when there is a complete traffic jam, the road utilization coefficient drops to 0; during peak traffic hours, the coefficient is often only 5% to 10%, and the efficiency is too low

Method used

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  • Traffic flow multiplication method for diversiform traffic light crossing
  • Traffic flow multiplication method for diversiform traffic light crossing
  • Traffic flow multiplication method for diversiform traffic light crossing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, the embodiment of the intersection of six roads, referring to Fig. 1, each arterial road all is two-way 6 lanes.

[0031] The basic characteristics of the intersection: because each intersection has 5 pairs of vehicles to come and go, for this reason, the number of lane groups with different orientations near the intersection should be expanded to 10 groups. Each group can be one lane or multiple lanes. Take the South intersection as an example to illustrate the main structure:

[0032] A, except for the right-turning lane [group] on the far right, the waiting areas of different directional lanes are moved back a certain distance [such as 50 to 200m] from the original uplink intersection to form the first waiting area (1). The left field of the area (" is all downlink lanes. There are 4 groups of lane groups with different driving directions in the area (1). Each group only takes 1 lane in Fig. 1. From left to right, the ordering of different directional ...

Embodiment 2

[0048] Embodiment 2, with reference to FIG. 2, introduces the basic features of the intersection of the present invention.

[0049] Each intersection has three directions of traffic. Therefore, at each intersection of the intersection, there are 6 lane groups for directional entry and exit. Corresponding parts in the figure are marked with the same symbols as in Fig. 1 . The traffic flow structure of its driving is greatly simplified compared with the six-way intersection. In the present invention, the second transition area (3) is also the second waiting area.

[0050] Take the north-south intersection [or east-west intersection] as an example, because the traffic flow at the north-south intersection [or east-west intersection] can turn right, go straight and turn left at the same time without conflict; is in release state. After the above design is further evolved, the plane intersection can obtain the maximum number of traffic lanes.

[0051] Combined with Fig. 3, the ...

Embodiment 3

[0060] Embodiment 3, as shown in Figure 3, in order to improve the average vehicle speed of vehicles in the downlink area, the plane layout of the crossroads can be changed locally asymmetrically: the first waiting area (1) and its right adjacent lanes (15 ) are all translated to the right, so that the traffic flow (16) descending from the third transition zone (4) exit can run straight.

[0061] About zebra crossing:

[0062] Referring to the crossroad of Fig. 4, the zebra crossing (14) of segmental release can be set at the intersection parallel with the straight traffic flow. When the corresponding straight traffic flow is released, the section of the zebra crossing (14) can be opened. Pedestrians and non-motor vehicles stop at the boundary of the adjacent left-turn traffic flow (13) lane. After the traffic flow (13) passes through, pedestrians and non-motor vehicles are allowed to complete crossing; thus, the time for pedestrians to cross the street can be shortened, and...

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Abstract

The invention relates to a traffic light crossroad traffic volume multiplication method, which comprises: orderly carding and arranging driveways before and after vehicle flow passing into and out of the crossroad, which eliminates the collision between the upgoing and left turning vehicle flow and the down straight vehicle flow and maximizes the driveway number in each green light turn; besides releasing right turning vehicle flow, left turning and straight vehicle flow on the opposite driving crossroad is also released simultaneously and the red light frequency is reduced to a half of the crossroad, the vehicle flow of the crossroad can be multiplied without expanding the prior roads, thereby greatly improving the road network traffic volume and transport capacity; better effect can be obtained if the method is further optimized. The method can be widely applied in Y-type crossroad, crossroad, double T-type crossroad and five-leg or six-leg crossroad. The method is based on mathematic model, utilizes the study results of road network utilization coefficient, has clear direction, and is a product of innovation designs and optimized designs.

Description

Technical field: [0001] The present invention relates to traffic signal controlled intersections. It is associated with a substantial increase in urban ground traffic network traffic. Background technique: [0002] Two-way multi-lane intersections controlled by traffic lights mainly include crossroads, three-way intersections, double T-shaped intersections, and five- and six-way intersections. [0003] In the crossroads controlled by traffic lights, the current way of passing left-turn traffic makes two coaxial intersections unable to release straight-going traffic and left-turn traffic at the same time; The retrograde road next door is empty. The probability of a vehicle getting a green light as soon as it reaches the intersection is less than 23%. Even in the unblocked period, the corresponding road utilization coefficient [the coefficient for evaluating the traffic capacity of the road network includes the prerequisites and factors such as the average vehicle speed. ]...

Claims

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Application Information

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IPC IPC(8): E01C1/02
Inventor 肖新凯
Owner 肖新凯
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