Investigation of sown vegetation on the sides of Guizun highway, Guizhou, China;

Gray clustering evaluation for traffic safety on the high-grade highway;

Treatment method of soft soil foundation in high-grade highway;

Key points for construction quality control of curbstone in high-grade highway;

Cement concrete pavement crack principle and prevention of the high grade highway;

Make People The Center,Create High Grade Highway Landscape;

Discussion of paving technology and development trends for high grade highway;

Discussing some problems in the highway greening;

Research on Highway Maintenance Quality Evaluation System;

Discussing the preventions of bridgehead jump-driving in highway;