By Taking Advantage of Mobile Phone Signaling Data, Exploratory Research on Changes from Rail Transit for Space Layout of City Activity Centers

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Abstract Summary
Along with continuous development of rail transit system, it becomes more convenient and faster for people to go out for a trip. Rail transit not only affects choice of work place for people, but also it has impact on choice of places for entertainment and leisure. At present, Scholars has confirmed with necessity of integration for rail station and land utilization. Then there are no research on how rail transit network has impact on characteristics of space layout for city activity center. The paper made exploratory research on influences which rail transit network had on layout of city activity center through research on changes of Shanghai rail transit network and of characteristics in space layout of city activity center confirmed in Shanghai overall planning between 2011 and 2018. First, mobile phone signaling data in 2011 and in 2018 was used for identifying residence-recreation behavior. And the number of repetitions at the same location at a specific time was made use of calculation out resident place, work place for resident users and daily recreational stay place for all users. In which, The users who stayed more than 30 minutes every day within city activity center are regarded as visiting city centers for the purpose of recreation, business and etc.. Second, service scope and activity intensity of city activity center in 2011 and in 2018 should be calculated out and its changes occurred should be made exploratory research. And then rail transit stations in 2011 and in 2018 should be categorized respectively according to the volume of the transfer routes. At final, through influences of network on activity intensity and activity scope of city activity centers through comparison in different conditions, it was determined that how rail transit had impacts on changes of city activity center. Through control on variable method, the comparison is conducted from three aspects: 1. compare the differences of service scope and service intensity of city center with the same grade located at multi-line station and single-line station. 2. Compare relevancy between population flow of station and function of city activity center. 3.Compare influences on city activity center with different distance and different grade on the line before and after the terminal line was opened. The research found that: First, the more transfer routes there were in metro station, the greater service scope and activity intensity of corresponding city centers would be. Second, mixability between population flow of metro station and function of city center appeared obvious positive correlation. At last, convenience of metro lines has different positive impacts on city centers with different grade. For district center, exurban metro station has the greatest impact on it. For sub-center, convenience of metro station has the greatest impact on it within 30-minute accessible sub-center. For high-grade city center, layout of metro station has the smallest impact on it. In conclusion, establishment of terminal lines for rail transit not only will strengthen attractive force of district center around the terminal lines, but also it has different attractive force to centers with different grade on this line. Therefore, expansion and setting of rail transit lines not only should be taken compound development and establishment between this station and its adjacent city centers into consideration, but also should be taken grades and numbers of the other city centers on the overall line into account so that it can make rail transit bring about more convenience for people to go out for a trip and can make overall city system operate more balanced, more orderly and more efficient.
Abstract ID :
ISO377
Submission Type
Tongji university, College of architecture and urban planning
Tongji University

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