A method of bus real-time dispatch and signal control based on bi-level programming
A technology of signal control and real-time scheduling, which is applied in real-time bus scheduling and intersection signal control, transportation and traffic information engineering and control fields, and can solve problems such as not taking into account the impact of signal timing schemes
Active Publication Date: 2021-06-04
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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[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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[0086] combined with Figure 1-4 And embodiment, technical solution of the present invention is described as follows further:
[0087] Example: select as image 3 A bus line is shown as the research object. The research section contains 7 bus stops and 6 signal-controlled intersections. The total number of buses running on the line at the current moment is N=7, and they are numbered in sequence. For the driving speed information of all buses in the road section, the stop time at the station is 25s, the minimum driving speed of the vehicles in the research road section is 30km / h, the maximum driving speed is 50km / h, and the parking time needs to be at least 20s and at most 30s. For all intersections in the road section, the minimum green light time of each phase is 15s, the green light time is 40s, the yellow light time is 3s, and the red light time is 2s. The current moment is , and the collected bus data and intersection data are shown in Table 1.
[0088] Table 1 Transit ...
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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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IPC IPC(8): G08G1/123G06Q10/06G06Q50/30
Inventor 吴伟郭诗雅龙科军
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY