Bus and private automobile main line green wave synchronization coordination control method in consideration of fleet discrete characteristics

Abstract

The invention provides a bus and private automobile main line green wave synchronization coordination control method in consideration of fleet discrete characteristics. The bus and private automobile main line green wave synchronization coordination control method comprises steps of obtaining speed distribution of private automobiles and buses on the basis of a traffic flow detector when a signal lamp at an upstream intersection turns from red to green, analyzing discrete characteristics of all private automobiles and buses which are distributed near a parking line on a downstream normal road and a downstream bus special road, determining an optimal intersection station separation distance when a phase difference is given or determining an optimal phase difference when the intersection station separation distance is given while considering a goal of synchronization coordination of bus and non-bus main line green wave and analyzing affects caused by queue lengths and speed distribution. The bus and private automobile main line green wave synchronization coordination control method is used for revealing speed distribution of the buses and the private automobile and a coupling relation between the separation distance and the phase difference of the optimal adjacent intersections, assists a traffic engineer to reasonably arrange the distance between the intersections on the basis of synchronization coordination of two types of automobiles or to design a regional traffic signal coordination control scheme, and has an important practical meaning to improvement of the whole traffic condition.

Description

Technical field: [0001] The invention relates to the field of traffic control, in particular to a green-wave synchronous coordination control method for buses and private cars on trunk lines considering the discrete characteristics of fleets. Background technique: [0002] The main roads of urban roads bear the main traffic load of private cars and buses. If the adjacent intersections on the main roads are designed in a coordinated timing scheme, the delay time and parking rate of traffic flow can be effectively reduced. Due to the different driving conditions and characteristics of buses and private cars, their driving speeds are different, which causes the conflict between bus signal priority and private car green wave control. The green wave coordination of the two types of fleets is optimal, but it may not guarantee that all vehicles trunk synchronization coordination problem. According to the discrete characteristics of bus and private car fleets, it is urgent to discu...

AI Technical Summary

Problems solved by technology

[0004] On general urban roads, if public transport and private vehicles encounter a red light when they randomly arrive at the upstream intersection, when the signal light turns from red to green, these vehicles parked and lined up leave the intersection and walk on the downstream road. The squeeze and division effect of signal lights on traffic flow, resulting in a stream of traffic flow not evenly arriving at the next intersection, resulting in the "discrete phenomenon" of the fleet in the process of driving

Images