Also,it analyses the various influencing factors of the mountainous road traffic accident rate in response to the characteristics of accident blackspots,puts forward the decision index of implementing the safeguard project and proposes the relevant technical plan on the basis of the.

It marked the traffic accident blackspot and spatial distribution,and studied the various factors which cause traffic accident based on the analysis using GIS-RTSIS.

Based on the requirement analysis of road black spots analysis system,the architecture,database and arithmetic base of road black spots analysis system are designed,the correlative data flow chart and module function are provided.

In order to obtain the causes of highway black spots conveniently,correspondence analysis method is used to establish the cause analysis model of accident black spots.

The results of running car experiment at accident black spot show that when there is a lateral acceleration,the heart rate of the driver will quicken by 20 percent at the accident black spot.

Based on the detailed analysis of high grade country road characteristics, accident black spots on roads were separated into three sorts.

The creation characteristics of traffic accidents at road black spots were expatiated,and the hierarchical structure model of the influencing factors in traffic security was built by AHP in this paper.