Intersection short-lane queue overflow identification method based on electric police data

Abstract

The invention relates to an intersection short-lane queue overflow identification method based on electric police data. The intersection short-lane queue overflow identification method based on the electric police data comprises the steps of: (1), obtaining the electric police data, and calculating the departure time headway of a vehicle; (2), in combination with the timestamp information that thevehicle passes through a parking line and the departure time headway obtained by calculation, describing double characteristics of proximity spacing and time headway fluctuation, so that a departuretime headway sequence variation point is identified, and estimating the vehicle queue length on each lane; and (3), analyzing a possible queue overflow type of an intersection in a condition that a left-turn short lane and an adjacent straight lane are different in queue length; and furthermore, performing subdivision by judging whether driving of a vehicle on an adjacent lane is blocked or not. The queue length of each lane is obtained by calculation based on a variable point analyzing theory; under different phase release rules, queue overflow identification algorithms based on rules are respectively established; therefore, queue overflow states in different types can be identified; and the intersection short-lane queue overflow identification method based on the electric police data inthe invention has the advantages of being definite in queue overflow classification, little in input data, wide in applicability and the like.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a method for identifying overflow of queuing in short lanes at intersections based on electric police data. Background technique [0002] With the improvement of the country's economic level, the supporting facilities in some cities are far from meeting the traffic demand because of their early traffic planning. During peak hours, queuing overflow will occur in the short lanes of signalized intersections, that is, queuing vehicles exceed the storage space of their lanes, hindering vehicles in other lanes so that they cannot pass through the intersection on time, affecting the dissipation flow rate of adjacent lanes, thereby reducing intersection traffic flow. operating efficiency. The effective identification of short-lane queuing overflow can serve the intersection traffic state estimation and signal control scheme optimization, which is of great significance. [0003] Most of t...

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Problems solved by technology

In addition, the existing methods do not subdivide it according to the impact of queue overflow, and do not consider the impact of signal phase release order on queue overflow

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