中美高速公路几何设计分析及其在工程实践中的应用

Analysis of Geometric Design and Its Application in Engineering Practice of Sino-American Expressways

摘要:

依托孟加拉达卡绕城高速公路项目，介绍了美国AASHTO规范在高速公路几何设计中各项技术指标的规范值和选用，并与我国《公路路线设计规范》（JTG D20—2017）进行对比，得到2个国家对于各个参数取值的相似和不同之处，供设计人员借鉴和参考。

Abstract:

Supported by the Dhaka Bypass Expressway Project in Bangladesh， the standard values and selection of various technical indexes in the geometric design of expressways in American AASHTO Code are introduced. And compared with the Specification for Highway Route Design （JTG D20—2017) in China， the similarities and differences of each parameter value in the two countries are obtained， which can be used as reference for designers.