The Research About The City Communications Network And Bus Station

The purpose of this article work is study the mixed city traffic flow. Based on the existing BML model,we proposed an improved cellular automaton traffic flow model for traffic flow with mixed vehicles in accordance with real traffic , carring on the corresponding simulation and system analysis;using the measured data ,we simulated one road section of Guilin train station;discussed the influence of the bus station position to the bidirectional four mixed traffic flow and analysised the phase transition characteristics。This dissertation consists of the following three main parts.1) Base on the investigation to the actual transportation situation nearby the Guilin train station, The simulations for the real mixed traffic flow condition are performed using the modified NS model with the open boundary condition.Some proposals and views about the design of the bus stop are put forward in this paper.2) Based on the BML model,we put forward a two-dimensional small city mixed traffic model which has a center station. Under the open boundary condition, we study the influence of the vanishing probabilityβ,mixture ratio,traffic lights period and green-signal ratio to the whole network of the transportation. Some useful conclusions can be obtained in our simulation.3) We take the origin and destination of public transportation spot as the research object .On the basis of the characteristic non-bus different lane change behavior and actual station constitution and arrival time In the realistic traffic flow, we introduce the separately lane-changing rules and carry on the simulation and propose the feasibility suggestion about the position establishment .some basic works and evidences have been conducted in order to solve bottleneck problems of public traffic,management for public traffic flow. Finally,we give the conclusions of our works and present the prospect of further study of traffic flow.