GEOGRAPHICAL RESEARCH ›› 2013, Vol. 32 ›› Issue (3): 441-451.doi: 10.11821/yj2013030006

• Article • Previous Articles     Next Articles

The collection and management of space-time data of individual behavior based on location-based technologies:A case study of activity-travel survey in Beijing

CHAI Yanwei1, SHEN Yue1, MA Xiujun2, ZHAO Ying1   

  1. 1. College of Urban and Environmental Science, Peking University, Beijing 100871, China;
    2. School of Electronics and Computer Science, Peking University, Beijing 100871, China
  • Received:2012-08-05 Revised:2012-12-09 Online:2013-03-10 Published:2013-03-10

Abstract: The space-time data of individual behavior is one of the most important quantitative foundations of modeling and analyzing in the research of human geography,transportation and urban planning.The development of location-based technologies as well as information and communication technologies(ICT) makes accurate space-time data collection more feasible and affordable.Some unique conditions in China during the transition make it possible to obtain more detailed and reliable data.This study compares individual behavior survey methods and applications based on traditional questionnaires with those based on location-based technologies.It further explores the collection and management of individual space-time data,using the seven-day activity-travel survey in 2010 Beijing as the dataset.The survey methods contain location-aware devices which are a combination of GPS and GSM,interactive survey website including activity diary filling interface for respondents and monitor interface for administrators,and interview on telephone and face to face.Respondents' socio-economic characteristics,one-week space-time trajectories and activity-travel diaries are included in the database.Moreover,the study demonstrates the data problems that were met such as data noise,data loss,problems associated with the algorithm.We attempt to offer theory,method and application experiences of highly accurate data collection and management to research on urban activity-travel system.

Key words: space-time data, activity-travel behavior, GPS, LBS, Beijing