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公共交通日益成为城市出行的主流和未来交通发展的方向,政府亦出台政策鼓励其优先发展。基于公共交通快速发展的背景,以北京市的两种公共交通方式为研究对象,利用基于能值分析改进的生态足迹模型,计算出2005-2010年北京市公共交通的生态足迹。测算结果表明,2005-2010年北京市公共交通的生态足迹呈不断增长的趋势,其年均增长率约为12.3%,其中轨道交通增长率持平于客运增长率,地面公交增长率高于客运增长率。北京市公共交通的生态足迹主要伴随着能源消耗的增多而增大,但其占北京市总生态足迹的比例较低,表明北京市公共交通符合可持续发展的要求,应该进一步推动公共交通,特别是轨道交通的发展。
Public transport has increasingly become the mainstream of urban travel and the future direction of transport development. The government has also introduced policies to encourage its priority development. Based on the rapid development of public transport, two public transport modes in Beijing are taken as research objects. Based on the improved ecological footprint model based on emergy analysis, the ecological footprint of public transport in Beijing from 2005 to 2010 is calculated. The calculation results show that the ecological footprint of public transport in Beijing shows an increasing trend from 2005 to 2010, with an average annual growth rate of about 12.3%. The growth rate of rail transit is equal to the growth rate of passenger traffic, and the growth rate of ground transport is higher than that of passenger transport rate. The ecological footprint of public transport in Beijing mainly increases with the increase of energy consumption, but its share in the total ecological footprint of Beijing is relatively low, indicating that Beijing’s public transport meets the requirements of sustainable development and should further promote public transport, especially Is the development of rail transit.