| At present, the safety evaluation of the road often is built up the traffic accidents of the road. It is difficult that the safety of road has been evaluated effectively before the reconnaissance, design and construction of road. The main research content is to build up the Driving Simulator Scene and carry on valid research to the security of the road through the subjective and objective response of drivers who drive the simulator on the virtual road.This text is on the basis of Virtual Freeway Design studied, change the data on the design drawing of the road into the road data needed of the experiment system for traffic simulations by Visual Basic programming, produce the virtual road to keep the same line with real road; at the same time produce the abundant fictitious road environment by the environmental data of the virtual road of data base administration; And through objective appraisal of the scene and the driver's subjective appraisal, the Fidelity of Driving Simulator Scene is evaluated.This text passes experts correctly, skilled driver and traffic police consult, set up general subjective evaluation method and modified DELPHI evaluation method that combine driver's Subjective appraisal and road safety evaluation index system togther. Through the comparison, analysis, revising and proving with the real traffic accident, the security subjective appraisal method based on the Road Traffic Driving Simulator had been set up . The driving simulator can write down the course of driving, so this text design four objective appraisal method to evaluate road safety: 1.The method about the distance of driving course deviating from the centre line of the road; 2.The method about the average distance of driving course deviating from the centre line of the road; 3.Dispersing average value method; 4.The method about the analysis of driving course actually in virtual scene.Studies have shown, the result of appraising to the security of the highway on the foundation of virtual road based on the Road Traffic Driving Simulator and actualtrafficaccident of road identical rate reach 74. 3%. Can carry on security appraisal to the road whether built up or not through this appraisal method. The road safety evaluation method based on the Road Traffic Driving Simulator has put forward a kind of feasible appraisal method to the security of the highway. |
