Lane-changing Behaviors in Pressuring Lines on Elevated Road Off-ramp Vehicles and Suggestions for Improvement
In order to guarantee the orderly operation of traffic in the off-ramp adjacent area of elevated roads,the traffic management and design measures are explored to reduce the risk of lane changing from the perspective of drivers'illegal lane-changing behavior and decision-making styles.Based on the objective lane-changing behavior data obtained by video recognition technology,five exogenous variables are extracted,including lane-changing speed,target lane queue length,lane-changing space,maximum speed difference,and lateral acceleration of vehicles in the field of view of lane-changing vehicles,from the three dimensions of lane-changing efficiency,lane-changing difficulty,and lane-changing risk.And then the LPA model is constructed for classifying the decision styles of lane-changing in pressuring lines.Six types of lane-changing decision-making styles,namely,controlled,robust,rational,aggressive,hesitant and impulsive,are defined.Rational,aggressive,and hesitant are more common,and impulsive,hesitant,and aggressive decision styles are more harmful.Eventually,countermeasures are proposed for the bad decision-making styles from various aspects.Giving priority to left-turn lane channelization,lane separation schemes,and speed limit/deceleration measures,etc.,to guide drivers to form benign decision-making styles.
NETL
NSTL
万方数据
