Transport demand is increasing with the process of urban sprawling, which leads to the rise of carbon emissions from the transportation sector. Compact urban development helps to reduce transport demand, which is critical to reduce carbon emissions from transport. However, urban sprawling in Beijing leads to increased job鄄housing distance, and correspondingly, to the increase of transport demand. This study quantified the influence of job鄄housing distance on carbon emissions based on a survey and tried to explore the impact of compact urban development on emission mitigation through scenario analysis. Two adjusted scenarios were considered in this study. In scenario鄄1, the job鄄housing distance remained within 15 km, which was suitable for the use of a public transport system; in scenario鄄2, the job鄄housing distance was within 5 km, which was suitable for active traveling modes. Results showed that in scenario鄄1, job鄄housing distance decreased by 21. 3% , while the vehicle鄄kilometers traveled (VKT) , the amount of carbon emissions and the cost of commuting declined by 12郾 4% , 28. 2% and 21. 2% respectively; in scenario鄄2, job鄄housing distance decreased by 56. 3% , and these indices dropped 48. 9% , 56. 3% and 34. 6% separately. Different traveling modes had different characteristics. Public transport system took up over 65% of the total VKT
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