河谷型城市轨道交通线路选线研究

研究目的:兰州地处黄河上中游,黄河穿城而过,属于典型的河谷型城市,由于河谷型城市与其他城市在各方面有许多的不同之处,因此在河谷型城市轨道交通线路选线问题的研究中,不可以照搬其他城市的现有模式,本文根据编制兰州市快速轨道交通线网规划工作中,线路选线设计所遇到的典型问题进行分析总结,以其对其他类似的河谷型城市轨道交通线路选线设计提供参考。研究结论:河谷型城市由于受地形地貌条件的制约,道路资源紧缺,轨道交通线路布设的合理与否直接影响着整个城市交通客运系统的效率。河谷型城市轨道交通选线需重点考虑主客流走廊、避免单边客流现象、跨河客流需求、天然冲沟的影响等因素。

Research on Track Alignment of Urban Rail Transit in Valley Pattern City

Research purposes: Lanzhou is located in the upper-middle reaches of Yellow River with the Yellow crossing it and it belongs to a valley pattern city.As there are lots of differences between the valley pattern city and other pattern city,the track alignment of the urban rail transit in the valley pattern city can not copy the mode of the other pattern city.According to the Lanzhou Rail Transit Plan,this paper analyzes and summarizes the problems in the track alignment of Lanzhou rail transit for providing the reference to the similar works. Research conclusions:Whether the track alignment is reasonable or not directly impacts the efficiency of the whole urban transportation system because the valley city is limited by its topographic condition and the road resource is in short supply.The track alignment of the rail transit in the valley patten city should consider the influence factors,such as the subjective and objective stream corridor,avoiding the passenger flow in one direction,the demand of the passenger crossing the river and natural gulley.