Evaluation Analysis on the Traffic Safety Related to the Road Alignment Based on the Operation Speed

The road safety has close relation to road alignment, and operation speed is the key factor of the road traffic safety. We should make an evaluation on the safety of the road alignment indexes after finishing the design of the road alignment to judge the reasonability of the road alignment indexes. This paper studies the traffic safety of the road alignment based on the idea of operation speed, evaluates the quality of the road alignment by the operation speed, make further improvement for the road alignment indexes, and test the rationality of this idea through engineering examples.