The traffic flow conflict at an unsignalised crossing is not only between motor vehicle flows,but also between traffic flow and pedestrian flow.

A model of vehicle emission dispersion in urban crossroad is built on some characters of vehicle emission dispersion in urban crossroad.

The motor vehicle emission pollutants diffusion mode is developed for crossroad and T-intersection in urban street on the base of OSPM mode and Nichoson box mode developed by Beijing Polytechnic University.

The Conception of Fundamentally Improving Crossing Pedestrian Signal in Signalized Intersections;

Capacity Calculating Methods for Signalized Intersections with One-way Traffic;

Study on vehicle fuel consumption of signalized intersections;

Computation models of capacity influenced by non-power-driven vehicle at signalized intersection;

Bicycle following behavior at signalized intersection;

Approach function split method at signalized intersection;

Survey and Analysis of Signal Intersection Stop Delay;

Spatial optimization design principles of urban road are unified in this paper to introduce main methods of the optimization of traffic resources at signal intersections in moderate cities based on the view of space design,which aims at utilizing the road resources maximally.

It has long been the research task of many specialists and scholars to confirm an evaluation system and classification standard for signal intersection service level in China.