罗汉洞坡被称为“鬼门关”312国道东起上海市,西达新疆维吾尔自治区伊宁市,是一条跨越大江南北绵延万里的国家级公路。这条路经甘肃省泾川县境内路段有一处长7.4公里的坡道叫罗汉洞坡,垂直高360米,最陡处坡度为6.5%m。自2000年10月公路改建通车以来的三年多时间里,这里共发生交 Lohan hole slope is known as “Ghost Gate” 312 State Road East from Shanghai, Xida Xinjiang Uygur Autonomous Region Yining City, is a stretches of miles across the river from north to south national highway. This road passes through the territory of Jingchuan County, Gansu Province, a 7.4-kilometer long slope called Lohan, vertical 360 meters high, the steepest slope of 6.5% m. There have been a total of more than three years since the highway was opened to traffic in October 2000