A channelization design optimization method for continuous flow intersections

Abstract

The invention relates to a channelization design method for continuous flow intersections, which includes (1) calculating the initial value range of the displacement transition section at the continuous flow intersection, and (2) determining the optimal value according to the road conditions, geometric design and traffic volume of the continuous flow intersection. Timing cycle, (3) Combining the law of traffic flow propagation to obtain the queuing length of straight traffic flow and (4) calculating the maximum value of the phase difference and shift transition section, and finally taking the intersection of the value ranges of (1) and (4) to finally obtain the shift at the continuous flow intersection The length range of the transition section; the present invention is a channelization design method that satisfies the safe operation requirements of the shifted traffic flow, which makes the traffic organization at the continuous flow intersection safer and smoother, improves the traffic efficiency of the intersection, reduces vehicle delays, and promotes Continuous flow intersection applications.

Description

technical field [0001] The invention relates to a channelization design method for continuous flow intersections, which belongs to the field of traffic organization. Background technique [0002] Intersections are key nodes for turning and collecting and distributing traffic flows in all directions, and are the biggest bottleneck of urban road traffic, especially high-load level signal-controlled intersections. At present, most level intersections usually use traditional traffic channelization The design method, in which the safety clearance design requirements that the left-turn traffic flow needs to meet when realizing the lane change function in the transition section are in China's "Urban Road Intersection Planning Specification GB50647-2011" and "Urban Road Intersection Design Regulations CJJ 152-2010" There are relevant regulations, and this traditional design method of signal-controlled intersection channelization has been widely used, and the relevant technical achie...

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Problems solved by technology

[0004] At present, there are more than 40 cases of practical application of continuous flow intersections in the United States, and only 3 cases in China (2 cases in Shenzhen and 1 case in Haikou). The length control of the displacement transition section at the mouth is mainly based on empirical values, and there is a lack of reasonable and scientific optimization design methods

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