合理设置轨道交通站间距的经济技术分析

Economic and Technical Analysis of Distance between Mass Transit Stations

城市轨道交通车站间距是轨道交通路网规划及线路设计的重要元素。本文从现阶段城市发展的角度阐述了适当加大站间距的必要性 ,以轨道交通与常规公共交通配合为背景用城市交通大系统的观点分析和论证了 :市中心区通过加大站间距合理组合常规公交与轨道交通的运力 ,充分发挥二者的综合优势 ,在郊区通过加大站间距可在不改变原有技术装备条件下 ,提高列车旅行速度的同时取得节约土建投资、减少配车数量等多项经济效益。本文还应用等时线模型推导了相关公式 ,定量地描述了轨道交通站间局变化对交通服务区面积产生的影响 ,通过模拟计算论证了加大站间距利大于弊的结论 ,以便使今后轨道交通建设更符合我国国情 。

The distance between mass transit stations is an important factor in the mass transit network plan and track design. The essay expounds the necessity of increasing the length between mass transit stations from the point of view of city development. The paper analyzes, expounds and proves the economic benefit brought about by increasing the distance between stations, coordinating the mass transit and the public communication system, fully tapping the comprehensive advantages of the two systems in the urban area. The paper also analyzes the economic benefit of increasing the distance between stations in the suburbs, where the original technical equipment is kept unchanged and the traveling speed increases. The plan would bring about better economical benefit with less investment. The paper also uses same time line to simulate the related formulas and quantitatively analyzes the influence of changing the distance between stations on the serviced areas. Through simulation the problems and merits are identified and it is concluded that merits are greater than the problems.