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重庆最复杂立交设计师:走错路,10分钟就能转换

2017-06-02 07:40:45   新京报

近日,一组"重庆最复杂最任性立交桥"的图片火了。

桥上密密麻麻的匝道分为了5层,20条匝道向8个方向延伸而去。重庆三横线、内环高速及机场专用高速三条道路在此相交,同时周边原有低速道路与三条高速在此相接,道路密集,高低不同,加上拐弯、转向等设计,让人很难分清每条匝道到底通向哪个方向。

网友标示的立交桥各个出口。图片来自网络

很多网友调侃称,“比著名的西直门立交桥还复杂”、“导航是否也会被绕晕?”“走错一个匝道就是重庆一日游啊”……

还有的网友喊话,让设计师出来唠一唠...

于是我们找到了立交桥的设计负责人刘帮俊。

他觉得,网络上的热议和吐槽都是很正常的,普通公众对立交桥的理解没那么专业,对由来和为什么这么设计不太了解,"其实该立交桥真的走起来还是很好认路的。"

对话人物

刘帮俊,黄桷湾立交桥设计负责人,林同棪国际工程咨询(中国)有限公司桥梁事业部副总经理。

“走错了,10分钟内就能进行道路转换”

新京报:黄桷湾立交桥为什么设计得这么复杂?

刘帮俊:在项目的设计思路上,首先要考虑交通需求,交通功能的需求决定了立交桥的复杂性。这是国、内外少见的三条快速路(机场快速、三横线、内环快速)相交形成的枢纽型立交桥,国内立交桥多为两条或两条以下的快速路相交。

另外,我们在设计时不仅要考虑上面三条快速路的相交,同时也保留了快速路和最下层慢速路的连接,所以功能多决定了黄桷湾立交桥的设计比较复杂。

新京报:怎么保证司机通行的便利性呢?

刘帮俊:我们在交通识别上作了重点考虑,主要采取了两个措施:其一是快速路主线的转向交通,就是一条主线转向另一条主线,均采用了单一出口,避免一般立交桥多出口导致的识别困难;其二,每个分流点只有两个方向选择,就是匝道分叉时只有两个叉口,要么左要么右,使过往司机易于识别。

新京报:你怎么看"走错一个匝道就是重庆一日游"的说法?

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