Development of a Community Green Transportationvaluation Index System
Date Issued
2008
Date
2008
Author(s)
Chen, You-Lin
Abstract
Due to the pollution of the environment and the drainage of energy caused by transportation are getting keener and keener every day, the public began to look closer to these negative impacts. In the purpose of protecting the environment and saving resources, the concept of green transportation emerges. Green transportation is a global concept, motivated by local practices. A globalized problem is transformed into a daily action by changing the environment living around which can make us act differently. A community, the most basic unit of a city, is also the origin of most trips. The provided transportation environment would affect model selection. This research uses community as a unit to construct a green transportation index system in order to assess the transportation environment meets the goal of green transportation.his research reviews native and foreign studies about green transportation developments. After scrutinizing, these studies fit to be guides for this research. Referring to indices for green buildings and green communities, we came up with preliminary frameworks and indices: pedestrian facility, bicycle facility, MRT system, bus system, motorcycle, and automobile, in the total of 6 frameworks and the total of 66 indices under these frameworks. We applied grey statistics method to filter out the 23 more important indices. Nevertheless, 23 indices make practical operation of the index system far too complicated. Therefore, after second filtering leaves the most important 14 indices– pedestrian framework: sidewalk continuity, sidewalk available width, the quality of pavement in sidewalk, disability-free environment, commuting network in the community school children; bicycle framework: bicycle lane continuity, bicycle lane available width, bicycle lane safety measures at intersections; MRT framework: surrounding pedestrian environment for MRT stations, available bicycle parking space; bus framework: distance to bus stops, number bus routes around this community, degree of eco-friendly buses, surrounding pedestrian environment for bus stops. The motorcycle and automobile frameworks were completely ruled out after filtering. uring the calculation of weight for each index, because the construction of MRT system is beyond the reach of a community, the index system consists two sets of subsystem. One system applies to communities having MRT stations in 1500 meters from the center of the community; the other system applies to communities not having MRT stations in 1500 meters from the center of the community. This research acquires weight of each index by interviewing experts and fuzzy hierarchy analysis processing. Meanwhile interviewing experts also acquires the level gradients of each index, which will be later averaged and adjusted to reasonable values.his research also built detailed standards for evaluating each index and a table for field investigation convenience. The research includes two example communities of index system applications: the community in Song-Shan District and the community in Wan-Hua District. The community in Song-Shan District applies to the system without MRT stations within 1500 meters from the center of the community. The evaluation grade for the community in Song-Sang District is 2.98218, which is class C. On the other hand, the community in Wan-Hua District applies to the system with MRT stations within 1500 meters from the center of community. The evaluation grade for the community in Wan-Hua District is 1.62371, which is class D. After evaluating both communities, this research gives preliminary improvement suggestions which would boost both communities’ green transportation evaluation grade-- for the community in Song-Shan District is 3.78307, class B; for the community in Wang-Hua District is 3.41907, class C.verall, this research completes a green transportation evaluation index system which includes two systems after determining the weight and standards for each index, threshold, and field investigation tables. The index system works for evaluating the transportation facilities, managements, and services surrounding communities. This system is easy to operate, and the indices are easy to evaluate. This research differs from former researches, which assess only a single transportation. The overall transportation variables in a community are taken into evaluation in the green transportation index system in order to provide assessments of current transportation development, foreseeing, and decision guidelines for a community.
Subjects
Green transportation
Community transportation
Index System
SDGs
Type
thesis
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