Simulation System Studies Of The Traffic Flow And Software Development

The traffic system of shipping is a big system of random trends formed by people, ship, environment. The traffic flow simulation of shipping is an important experiment means to study shipping traffic. The method of shipping traffic flow simulation can be popularized and applied to urban traffic flow simulation.The estimations and alternative rearrangements of urban traffic flow distribution and signal timing plans is conducted by using traffic flow simulation. The domestic and international practice proves urban traffic flow simulation has very good function to the improvement of the network traffic capacity of city traffic. The research of the traffic flow simulation starts relatively iate in our country, explore stage basically. Though a lot of research institutions and project departments use the foreign software to carry on the experiment to the traffic of our country, but because of the difference of the national conditions, fail to receive the satisfactory result. So, researching and developing has important meanings on the basis of the system of urban traffic flow with real traffic of our country.The hydrodynamic theory of the traffic is widely applied to a lot of fields of the communications and transportation project, for instance shipping manoeuvre, traffic planning, etc.. The hydrodynamics of the traffic injected the new vitality into the old disciplines, for instance hydrodynamics, applied mathematics, etc., having offered ample scope for abilities and opportunity for development for they, so, the traffic flows there are important theory meanings in the research of mechanics.Subject for research this stem from Guangdong Province scientific and technological drawing room scientific and technological brainstorm subject " A traffic flow simulation system based on GIS and urban mixed traffic(No. 2002C5030202)". At first, the current situation flows to study domestic diplomacy openly; Then, have carry on network analysis to this system, has set up the database of urban traffic flow; Then describe the improved modelsincluding car-occuring model, car-following model, lane-changing model and signal-controling model that accord with the actual situations of urban traffic in China., use the function of the system of programming realization of visual basic 6.0. The system has offered the convenient parameter to set up the function, simulation imports, outputs and friendly interface. This text uses the system to carry on the road network modeling, simulation to the TianHebei road of Guangzhou finally, result indicate result and survey datum to be basically identical.This text spend improved traffic fluid power model to TianHebei, compare the result with micro simulation at the same time. The result shows, the reflection traffic reality that two kinds of models can both be very good.In addition, this text has also carried on the detailed narration to the traffic flow simulation of shipping, have put forward a kind of method that new volume of traffic of shipping predicts.