605 / 2019-03-27 08:27:25

Spatial planning and transport inequalities in megacity: visualization, modelling and predication

spatial planning; urban form;,transport inequalities;,modelling

全体主题 > Big data in Urban Planning and Management

Transport inequalities is one of key issues in relation to building justice city. Some disadvantaged groups often have a heavy burden of long commuting which causes problems with quality of life and personal health. The situation is particularly serious in growing megacities in which more than 10 million people live. To identify long commutes from millions of trips and to know who long commuters are and where they reside and work are key research questions in sustainable transportation. Although studies have been done, the existing literature is dominated by traditional travel survey data, which uses limited samples and which is costly. This study provides new evidence for identifying long commutes and their demographic variations in a megacity using big data analytics on mobile phone data in Beijing. Some 1.80 million regular commuters were identified from 14.71 million mobile phone users over a one-month period. The results showed that 15 percent of commuters had long commuting times of more than 45 minutes each way. Most of the long-time commuters are male (66 percent). Young people (under 35 years old) dominated long-time commuters (61.4 percent) rather than middle-aged people. The long-time commuters’ homes were mainly in the inner suburban area, which is between the city centre and the outer suburban area. Surprisingly, the city centre has a high percentage of older long-time commuters. The findings of this study enhance our existing knowledge of long commutes and their demographical and spatial patterns in growing megacities.