Design Optimization of Traffic Signs for Special Sections of Expressway

This paper fully respects road conditions and operation environment of expressway and the road network, focuses on examination and optimization of traffic safety signs and discusses the readability, timeliness and effectiveness of traffic sign. Firstly, a set of feasible and practical processes and methods of design optimization of traffic signs on expressways based on domestic and foreign related scientific and technological achievements are proposed. Then, the set position and quantity of various signs such as warning, prohibition, notice, service area and auxiliary signs in special and key sections are pertinently optimized. The whole optimization work can transforms safe guard into design guard to minimize potential security risks in the design process of traffic signs.