包括2014年的补充资料和2016年的勘误表。公路安全手册的制定旨在通过提供在项目开发过程中考虑安全的工具，帮助显著降低美国公路上车祸的频率和严重程度。HSM帮助从业者选择对策和优先项目，比较备选方案，量化和预测规划、设计、施工、维护和运营中考虑的道路要素的安全性能。

Includes the 2014 Supplement and 2016 ErrataThe Highway Safety Manual was developed to help measurably reduce the frequency and severity of crashes on American roadways by providing tools for considering safety in the project development process. The HSM assists practitioners in selecting countermeasures and prioritizing projects, comparing alternatives, and quantifying and predicting the safety performance of roadway elements considered in planning, design, construction, maintenance, and operation.