A method of bus real-time dispatch and signal control based on bi-level programming

Abstract

The invention discloses a method for bus real-time scheduling and signal control based on double-layer planning. Firstly, the distance between bus vehicles, the distance between the bus and the intersection, and the signal timing of the bus request phase at each intersection are collected and studied. secondly, calculate the current signal delay of buses at the intersection and the initial headway, and finally establish an upper-level model oriented to headway balance, establish a lower-level model oriented to the minimum bus delay at intersections, and calculate the signal timing scheme and bus scheduling Program. The method of the invention can be used for equalizing the headway of buses and alleviating the traffic jam of buses.

Description

technical field [0001] The invention belongs to the fields of traffic transportation and traffic information engineering and control, and relates to the fields of real-time bus dispatching and intersection signal control, and more specifically, relates to a method for real-time bus dispatching and signal control based on double-layer planning. Background technique [0002] With the development of society and economy, the number of cars increases, and the supply of road facilities exceeds the demand. As an important road public transportation mode, buses have a small per capita road occupancy rate due to their large-capacity properties. Prioritizing the development of public transport is the current Consensus of the transportation industry. [0003] Most of the current research on bus priority is to achieve time priority by giving buses the right of way at intersections. On this basis, the priority of bus priority signals to individual buses leads to the aggravation of the un...

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Problems solved by technology

[0005] After searching the literature of the prior art, it is found that the existing bus real-time dispatching and signal control methods have achieved a lot of results in the problem of equalizing the headway, but most of the intersection signal control is only to meet the constraints of the headway. Neglecting the delay of buses at intersections, or improving the traffic flow while ignoring the impact on headway, or not taking into account the impact of signal timing scheme, vehicle speed and stop time on headway

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