A Study of Applying Ecological Footprint Theory to Transportation Planning
Date Issued
2008
Date
2008
Author(s)
Wang, Shih-Ming
Abstract
Promotion of transportation efficiency brings economic development. However, heavy private mode use will cause some problems like air pollution, energy overuse, greenhouse effect and traffic jam. As people pursuing economic benefit, they always ignore the aggression that will cause resource overuse upon nature and ecology. The aggression will affect other species and threaten their lebensraum and resource. In order to reduce the shock from traffic to natural environment, this research will rethink the procedure of transportation planning in terms of “ecology”. The concept of ecological footprint(EF) theory is the sum of resource consumption and waste absorption transformed on the basis of the biologically productive land area required by a defined population. This paper will apply ecological footprint theory integrating incremental assignment method to constructing Ecological Footprint Traffic Assignment Model(EFTAM). And use the model to discuss the impact of people who are traveling on environment. Moreover, the network EF and roadway EF of bus, taxi, car and motorcycle were calculated and analyzed based on delay EF and unit distance EF. In comparison of travel time method and EF method traffic assignment, the whole network EF of travel time method is smaller than EF method. However, travel time method will make a phenomenon of EF concentrating on specific roadway. In consideration of fairly distributing EF over each roadway, EF method will have a better effect. Besides, in different policies, the higher proportion of mode split of bus, the lower whole network EF. Hence, it will be helpful to reduce shock from traffic to natural environment by encouraging people to use public transit like bus. Regarding the whole network EF in Taipei, it was found that the percentage of car is 58.1%, motorcycle is 22.4%k, bus is 10.2% and taxi is 9.3%. The car is 6.25 times of the bus in the percentage of whole network EF. Concerning the roadway EF in Taipei, the ChongQing N.Rd. connecting Datong District and Zhongzheng District is 8.75 times of the Chenggong Rd. connecting Neihu District and Nangang District. About EF of each mode per trip, the car biggest one is 5.07 times of the bus smallest one. Accordingly, comparing the car being a high EF mode, the public transit like bus will have a better effect on reaching the goal of sustainable transport.
Subjects
Ecological Footprint
Traffic Assignment
Transportation Planning
Incremental Assignment Method
Sustainable Transport
SDGs
Type
thesis
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