Based on the "shortest path matrix", the selected characteristic indices-distance, time and speed, this paper analyses the current spatial structure of accessibility in the cities which the national trunk highway system connects, and impacts the speed index made.

Organizing and managerial methods in the arterial highway network project construction;

Evaluation on project for the prevention and control against debris flow in Tibet arterial highway;

The paper stresses the importance of greening along arterial highway,presents greening management situation within Huainan,analyzes difficulty exist in Anhui Province and finally makes suggestion for greening management along arterial highway.

On quality control of reconstruction engineering of trunk highway;

Fuzzy synthesize rating study on the resistant ability against diasters of Chongiqng trunk highway;

Investigation and analysis of trunk highway disaster characters of Chongqing;

Research on administration strategy of main highway over-load transportation in Chongqing;

Concerning the actual problems of main highways,such as heavy traffic,truck overloading,transposition and upheaval,GTM is used to mix asphalt and concrete to be applied in main highways.

In this paper, from the viewpoint of technical economics, the construction cost, maintenance cost and vehicle transportation cost of different axle 條oad limits in the main highway of Hebei province are analyzed, and the method of selecting the reasonable axle-load limit was put forward.