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【微观林芝】拉林高等级公路开启西藏公路交通的“高速时代”
拉林高等级公路一期林芝段的多布特大桥 摄影:赵征宇
国际在线报道(记者 赵征宇):西藏地处高原,地形地貌复杂。六十多年前,青藏、川藏公路(简称“两路”)的通车,结束了西藏没有现代化公路的历史。六十多年来,特别是“十三五”期间,西藏公路建设发挥“两路”精神,在2013年10月西藏墨脱公路建成通车,结束了我国最后一个行政县不通公路的历史;截止2016年底,西藏公路通车总里程达到82096公里,比2012年底增加近三分之一;拉萨贡嘎机场专用公路、林芝米林机场专用公路、拉萨至林芝高等级公路(以下简称“拉林高速”)一期建成通车,更是将西藏公路交通带入“高速时代”。
2011年7月拉萨贡嘎机场专用路的开通结束了西藏没有高速公路的历史。西藏交通厅副厅长陈朝向我们介绍,高等级公路是西藏自治区交通领域特有的一个说法,就是在一级公路的上限,做了封闭,形成了高速公路。其与我国普遍意义上的高速公路最大的区别在于应急车道的宽度只有一米宽。他说:“这个在内地是没有的,所以它叫做高等级公路。原来的38公里就指的拉萨到贡嘎机场这一节。‘十三五’期间,我们启动了拉林高速公路(建设)。拉林高速公路建设可能在我们全国是数一(数二)的。拉林二期建设实际只有一年半,通过检测全是优良工程。这两年(西藏公路)全面推行标准化建设、标准化管理,不管是安全生产、环境保护,还是施工管理。(西藏高速公路)从38公里增长到304公里。现在羊八井到拉萨,这个是正真的国高网G6,也就是京藏高速控制性工程已经开工。”
拉林高等级公路一期拉萨段和林芝段已经通车,二期也通过了验收。目前,只有控制性工程米拉山隧道及前后延伸主线还在建设之中,预计于2018年4月完工。
林芝位于藏东南,素有“西藏江南”之称,海拔相对较低,植被茂密,含氧丰富,是很多人入藏旅行的第一站。拉林高等级公路是沿着中国最长国道318线川藏段修建的,修建过程中,没有影响国道的通行。拉林一期拉萨段和林芝段于2013年5月开工建设,已于2015年9月通车。拉林高等级公路一期林芝段指挥部计划合约部部长宋贤才在项目结束后负责后期监控通车的情况,对于拉林高等级公路一期林芝段两年来的运行情况,他介绍:“从通车运行这两年来看,没有发生重特大交通事故。从这条路修了以后,从内地的自驾游旅客大都选择这条公路。自驾游选择这条公路(更舒适),时间上也缩短了。我们将来全线通车以后,原来8小时(从林芝)到拉萨,会变为5小时。而且5小时是按(设计时速)80公里(每小时)算的,因为全线是409公里。设计时速是80,(一期)最终限速,也是综合车辆的运行情况、车流量的情况,交通部门、政府,各方面开论证会,最终决定将(限速)速度调到了100(公里每小时)。”
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