Reasearch On Key Technologies Of Intersection Signalcontrolfor Multiplexingbus-lane

At present, the road resources was scarce, for the phenomenon of roadresources wasted and shortages of bus-lane multiplexing technology, on the premiseof ensuring bus priority strategy, the key technologies of intersection signal controlfor bus-lane multiplexing were researched.Firstly, the topology of intersection signal control system for bus-lanemultiplexing was built; The technologies system of intersection signal control wasestablished; The car lane-returning manners of bus-lane multiplexing wereinvestigated, and the car lane-returning time prediction model was built, in the model,driving location of the bus is the trigger information for cars lane-returning.Based on elaborating the shortage of bus location technology with GPS andRFID apartly, one combinated vehicle location technology was researched; and largeamount bus driving data were collected with the combinated location system; The busdriving data were processed by one soft developed on C/S mode.According to the processed results of vehicles travel data, the characteristics ofdistribution of buses travel time and speed have been analyzed. On this basis, the bustravel time prediction model for multiplexing bus lane has been established. And afterthe comparative analysis of predicted results with actual measurements results, theprediction model is reliable.Based on the relationship of social vehicles returning-road time and buses traveltime, a kind of intersection signal control method for multiplexing bus lane wasdesigned. The method includes extend the green light time and shorten the red lighttime. After the intersection signal control method was simulated by microscopictraffic simulation software Paramics, the results shows: in the medium trafficenvironment, the control method could shorten the social vehicles returning-road time and improve the road resources utilization under the circumstances of intersectiontraffic efficiency, and bus travel time is not affected, and the way of extending thegreen light time is better than shortening the red light time.Finally, as the theoretical foundation of the intersection signal control method formultiplexing bus lane, the hardware architecture and software architecture ofintersection signal control system was designed based on the single-chip technology,the system functional requirements were analyzed in details, the signal lightsimulation board was designed for the system hardware layout simulation, and thesystem software functions achieved by the secondary development method provides areference for intersection signal control method for multiplexing bus lane.