Abstract: Because of rapid development of expressway and vehicle technology, vehicle fleetness transportation brings prodigious social benefit and economic benefit. But unsafe factors of vehicle over-speeding on expressway should not be ignored, daily occurrence of traffic accidents make huge harm for human life and property. This paper presents impacts of over-speeding to driver driving patterns, vehicle performance, and kickbacks caused by over-speeding. Driver should select moderate speed based on various vehicles to ensure traffic safety and improving transit capability.

Key words: expressway, over-speeding, traffic accident, cause analysis

摘要： 高速公路的迅速发展以及汽车技术的不断改进，使车辆能够适应快速运输的要求，并带来了巨大的社会效益和经济效益。但车辆在高速公路上超速行驶产生的不安全因素也不可忽视，由此而造成的交通事故屡见不鲜，给社会和人们的生命财产造成极大的危害。本文阐述了超速行驶对驾驶员交通特性、车辆使用性能的影响以及超速行驶产生的不良后果；提出在保证交通安全的前提下，既确保较高的运输效率，又不降低道路通行能力驾驶员依据不同车型在良好道路上用经济车速行驶比较合理。

关键词: 高速公路, 超速, 交通事故, 原因分析