Integrated control system of high-flow planar intersection

Abstract

The invention relates to a traffic control way for a high-flow planar intersection. A left-turn lane in an intersection entrance direction (3) is adjusted to an outermost lane (6) in a same-side direction; and a left-turn to-be-turned line (11) and a cross-opposite-direction lane (7) are set. An entrance side parking line moves backward and is arranged in front of a pedestrian crossing line at a distance of 5 to 15 meters. Four kinds of signal lights are arranged at an intersection for motor vehicles: the first kind of signal light being straight driving-right turning-left turning signal light as a main signal light (15), the second kind of signal light being a left-turn to-be-crossed opposite-direction lane signal light (18), the third kind of signal light being an exit-direction anti-collision signal light (20), and the fourth kind of signal light being a pedestrian-non-motor vehicle signal light (21); the left-turn to-be-crossed opposite-direction lane signal light (18) and the exit-direction anti-collision signal light (20) are located in a full-green or full-red period of the main signal light; and the pedestrian-non-motor vehicle signal light is arranged at the latter half of the green light of the main signal light in the direction. The system has the following beneficial effects: only two phases exist during one main signal period and no cross interference influence is caused, so that the passing capacity of the intersection is improved.

Description

technical field [0001] The comprehensive control system for large-flow intersections can be used as traffic organization and control for ordinary level intersections, especially for intersections and T-shaped intersections. The invention belongs to the technical field of road traffic and relates to a traffic structure at a level intersection. Background technique [0002] Traditional level intersections use the entrance direction traffic flow to wait for the signal lights to control the passage at the pedestrian crosswalk at the entrance direction, go straight through the middle lane, and wait on the outside of the right-turn lane, or merge with the right through lane, and wait for the left-turn lane to turn on the inside lane. Often due to turning left and waiting ahead, valuable road resources at intersections are taken up, and traffic in the opposite straight lane is affected. At the same time, in order to ensure that the traffic flow in each direction reduces the turn t...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the parking line at the intersection is trapezoidal and oblique, and the intersection is messy

In this patent application, each crossing signal light and oblique signal light and the signal light of the same two-way straight lane display red and green synchronously or slightly staggered, which may cause a large number of vehicles passing through the intersection when the green light is about to end, and those who cross the line and turn left Vehicles are congested at the intersection, and when the number of left-turning vehicles and right-turning vehicles is small, the road resources of each exit lane cannot be fully utilized

Causes the exit direction lane to be vacant for a long time

[0005] The Chinese invention patent "A Left-Turn Conflict-Free Level Road Intersection Grooming System" (Application No. CN201510433845.4) applied by Xi'an Polytechnic University provides a design scheme for intersections, driving on any road at the existing intersection The leftmost lane in the direction is set at a certain position from the stop line, and the rightmost lane at the same side of the intersection is set up with a left-turn waiting area, and the left-turn guiding channel is connected with the left-turn waiting area; Its shortcomings are: the same content as Hu Changpeng's patent, only the leftmost lane is increased by 20-100 meters from the stop line, and the turning space of the vehicle is small, and there is no in-depth study. In terms of signal lights, there are 6 signal states in total. Many states, complicated operation, and long signal cycle

Its disadvantage is that all vehicles turning left must first turn right and then turn left

The turning radius required for vehicles to turn left is relatively large. When there are many vehicles, it is very easy to cause congestion and scratches

Especially for large vehicles, it is more difficult to achieve a U-turn

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