公路长直线接小半径平曲线探究

摘要

公路长直线段容易诱发车辆超速行驶，而其后所接小半径平曲线往往是车辆侧滑事故的多发路段，现行规范中虽然提出避免此类线形，但未做详细的指标规定。文中通过分析此类线形所导致的安全隐患，并结合国外相关规范中的有关规定，对现行规范中未作量化规定的相关临界值加以探讨，并提出其他改善措施。%Long straight section on highway may cause overspeed,sharp curves after that are always accidents caused sections.Currently standards have require to avoid such aliment,but without de-tailed values requirement.By analysis of hidden dangers on such aliment in this article,and claims in some foreign relevant criteria,study of critical value unrequited in 《Design Specification for Highway alignment》,trying to provide reference for geometric alignment design for highways and propose other improvement measures.