Lanechanging Safety Model for Deteriorative Weather

Abstract:

A driver postpone response model was put forward by taking the fog influence on drivers’ visibility into consideration.Based on vehicle runtrack simplified as continue reversecircle,a describing lanechanging model was set up firstly.Combined with the carfollowing model,the safety lanechanging model was introduced to audit the vehicle lanechanging safety during deteriorative weather.Based on numerical simulation results,lane volume criterion of lanechanging restriction was then set up for deteriorative weather.Field survey and accidents investigation were carried out,good proportion between lanechanging related headway and accidents was testified.

Key words:deteriorative weather; lanechanging; runtrack; driver postpone response; lanechanging forbidden