Under the new design idea on protective engineering,according to real topography and geomorphology,we carried out an optimization design of the connecting highway s proactive engineering.

Scheme optimization of highway route is an essential problem in highway route design,and is also the important tache in scheme optimization.

The specific quantization scheme based on the national economy evaluation of highway route selection will provide a feasible method for designers when they select highway routes through evaluating on national economy,and will be helpful for promoting the perfection and development of highway economy evaluation in China.

The CAD technique of highway route is importance part of highway measure of modern, so that highway route is the main key in CAD technical development.

The existed shortage of highway alignment design based on design speed was analyzed.

Two highway alignment design methods based on design speed and operating speed are introduced.

Based on GIS and genetic algorithm(GA),the intelligent optimization model of highway alignment has been built to address this problem.

Spatial distribution and variability of heavy metals contents in the topsoil along roadside in the Longitudinal Range-Gorge Region in Yunnan Province;

The application of 3S technologies in highway route selection;

the Application of GIS Technologies in Highway Route Selection;

It is essential to recognize the environment and the features of mountain disasters for highway route selection.

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.