Regional Dynamic Boundary Control Method and System for Preventing Queuing Overflow in Boundary Road Sections

Abstract

The present disclosure provides a regional dynamic boundary control method and system for preventing queuing overflow at the boundary road section. According to the obtained traffic flow information of the boundary road section, the Kalman filter extension method is used to estimate the number of queuing vehicles at the boundary road section, and calculate its maximum capacity The total number of vehicles; use the estimated number of queuing vehicles and the maximum number of vehicles that can accommodate each boundary road segment to dynamically divide the boundary road segment, and obtain a set of boundary road segments with sufficient available storage space and a set of boundary road segments with insufficient available storage space; The established regional macroscopic basic map model obtains the key cumulative quantity of the region, and estimates the predicted cumulative quantity in the next sampling period of the region; according to the deviation between the predicted cumulative quantity and the most critical cumulative quantity and the collection of each boundary section, dynamically control the area boundary intersection Traffic flow operation; the present disclosure not only actively avoids the deterioration of regional traffic flow, but also reduces the occurrence probability of boundary section overflow.

Description

technical field [0001] The present disclosure relates to the technical field of intelligent transportation, in particular to a regional dynamic border control method and system for preventing queue overflow in border sections. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the rapid development of the economy and the continuous increase of car ownership, the demand for transportation has become increasingly prominent, and more and more urban roads are in short supply. Urban traffic congestion is gradually showing a trend of evolving from bottleneck points to arterial roads and regional road networks. The resulting regional traffic congestion has become a common problem in large and medium-sized cities in China. How to use traffic control and other means to regulate the operation of regional traffic flow, avoid the occurrence of re...

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Problems solved by technology

[0005] The inventors of the present disclosure found that the above-mentioned schemes all involve regional macroscopic traffic flow modeling and formulation of regional boundary control schemes, but these studies do not specifically solve the problem of queuing overflow in threshold boundary road sections, and the implementation of the control strategy will lead to boundary road sections The congested traffic flow spreads to the upstream intersection

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