How to organize and control the turning left traffic flow reasonably is the key problem for management of traffic order and improving the traffic capacity at intersection.

Based on field research on some major intersections,this paper classifies problems of different grades of intersections, puts forwards of improving measures,and provides a reference to alleviate the congestion status of the Second Ring Road.

Determination of the severity of traffic conflict at highway intersections;

This article divides traffic conflict into 2 types: common conflict and severe conflict and chooses the ratio between the number of traffic conflicts and traffic volume in typical periods as indices on the consideration of the whole traffic condition on highway intersection.

Through microscopic analysis of the right-turn vehicles curve process,this paper has proposed the length computational method of the offset exclusive right-turn lanes at signalized and non-signalized highway intersections.

To deal with those shortcomings, taking accrossing of two road as a studying example, thinging over city-design, environment & sight, including how to respect the people needs and save area, advance the design of circuity-interchange.

Design and implementation of Remote Video Surveillance System for railway level crossing;