Bus real-time scheduling and signal control method based on double-layer planning

Abstract

The invention discloses a bus real-time scheduling and signal control method based on double-layer planning. The method comprises the steps: firstly collecting and researching the distances between buses on a road section, the distances between the buses and intersections, and the signal timing schemes of bus request phases of the intersections; then calculating the current situation signal delay and the initial time headway of the bus at the intersection, finally, establishing an upper-layer model oriented to time headway balance, establishing a lower-layer model oriented to the minimum intersection bus delay, and calculating to obtain a signal timing scheme and a bus scheduling scheme. The method can be used for balancing the bus head time interval and relieving bus crossing.

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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