This discipline mainly studies the basic theories and key technologies in the planning, survey, design, construction, operation, maintenance and management of transportation infrastructure such as railways, highways, and urban roads. The purpose of education and re-search in this direction is to help students train to engage in the fi-eld of transportation engineering, especially the technical development, survey and design, engineering construction and operation management of Railways and highways. Specifically, key research areas include：

1）New transportation materials. This direction mainly studies new materials of pavement composition, nano modified asphalt, new materials of pavement maintenance, new materials of asphalt mixture pavement, new materials of high-performance cement concrete pavement, etc.

2）Subgrade structure design and pavement maintenance technology. This direction mainly studies the structural design of subgrade and pavement, common materials for highway maintenance, daily maintenance of highway subgrade and prevention of typical diseases, asphalt pavement maintenance, cement concrete pavement maintenance, investigation and evaluation of highway technical conditions, etc.

3）Tunnel disaster prevention project.This direction mainly studies the regulation of tunnel freezing damage in cold regions, tunnel deformation control technology under special geological conditions, etc.