交通方式结构的界定

The Definition of Travel Mode Shares

由于交通方式结构在实际应用中容易产生混淆和误判,需要重视交通方式结构的界定问题。首先从交通方式结构的定义入手,分析了交通方式结构界定的必要性和重要性。提出需要在交通方式划分、度量内容以及度量范围3个方面对交通方式结构进行界定。交通方式结构比较时,对交通方式进行归类。度量内容即交通量的统计内容,包括出行量、客运量和客运周转量。根据度量内容不同,将交通方式结构划分为出行方式结构、乘行方式结构和客运方式结构。而度量范围可以从地域、时间、方式等方面进行界定。最后以上海市和大伦敦地区的实际数据对3种交通方式结构进行说明。

Abstract ： Due to the fact that travel mode shares sometimes are used by mistake in practice, this paper, based on a discussion on the definition of travel mode shares, first analyzes the necessity and importance of proper definition for it, and further presents how to define travel mode shares from three levels： modal split, statistic objects and scope. The comparison between travel mode shares should be based on unified classification for travel modes. Considering statistic objects, namely, traffic or passen ger volumes, travel mode shares involve travel volumes, transit passengers and passenger kilometers. Statistic scope could be de fined from following aspects, such as areas, time, and travel modes, etc. Finally, the three types of travel mode shares are il lustrated through cases study from Shanghai and London.