Interactive Highway Safety Design Model(IHSDM) developed by FHWA has widely used in many countries and regions for its advanced concepts and quantitative analysis ever since its appearance.

• 美国联邦公路管理局(FHWA)开发的交互式公路安全设计模型(IHSDM)自推出以来,以其先进的理念和可定量操作性在很多国家和地区得到了应用。