Abstract
It is very useful to understand metropolitan human movement patterns for better city planning and traffic management. As the most accessible and wide-coverage data source for probing the laws behind city pulse and human movement, taxi O/D data have been receiving more and more attention from road traffic administration offices. In this paper, we design a visual analysis system for big taxis O/D data for assisting understanding the spatio-temporal patterns of human mobility. The system first helps users determine the regions of interest for further investigation by the global heat map view of O/D distributions; visually encodes the spatio-temporal patterns of the O/D data of the to-be-analyzed regions chosen by lasso or rectangle region selection tools; and provides a multi-dimensidoneonal analysis of the latent spatio-temporal patterns of taxis O/D data through interactions between multiple coordinated views of visualizations including circular pixel graph, spatio-temporal stacked graph and nested pixel bar. The proposed system of taxis O/D data visual analysis gets interesting findings about the metropolitan residents’ movement behavior when applied to large-scale real taxis GPS data in Hangzhou and receives good user feedbacks.
Original language | English |
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Pages (from-to) | 185-200 |
Number of pages | 16 |
Journal | Journal of Visualization |
Volume | 18 |
Early online date | 14 Mar 2015 |
DOIs | |
Publication status | Published - May 2015 |
Externally published | Yes |
Keywords
- Human movement patterns
- Taxi O/D data
- Visual analytics
- Spatio-temporal visualization