ZHONG Fusheng, WANG Anlin, JIANG Tao, et al. Neighborhood reconstruction of urban traffic signal self-organizing control rules[J]. 2020, 52(3): 74-81.DOI: 10.11918/201906054.
To solve the problem of fixed local rule control precision caused by frequent traffic flow phase transition and complex road network topology in self-organizing control of urban traffic signals
this paper proposes a reconstruction method of urban traffic signal self-organizing control rule neighborhood. First
neighborhood was defined as the associated adjacent intersections combination which is constructed by the current intersection with its self-organizing control rules. Next
based on the set of the adjacent intersections of the current intersection
with the combination of the methods such as factor analysis and cross-correlation
the relative spatial expression of location as well as the relative temporal expression of traffic flow transmission between current intersection and any adjacent intersection was constructed so as to realize the time-space quantitative expression between the current intersection and all of its adjacent intersections. In the end
the signal switching rules for the current intersection were established based on the fluid dynamic equation. With the established quantitative relationship
the self-organizing control rule neighborhood of the current intersection was reconstructed in its associated adjacent intersection set. Simulation results show that the maximum capacity and the overall capacity of the current intersection increased with the expansion of the neighborhood. Neighborhood reconstruction can solve the problem of control precision caused by fixed rule neighborhood
and the expansion of the neighborhood can affect the stability of traffic flow release.