Title
Unraveling The Origin Of Exponential Law In Intra-Urban Human Mobility
Abstract
The vast majority of travel takes place within cities. Recently, new data has become available which allows for the discovery of urban mobility patterns which differ from established results about long distance travel. Specifically, the latest evidence increasingly points to exponential trip length distributions, contrary to the scaling laws observed on larger scales. In this paper, in order to explore the origin of the exponential law, we propose a new model which can predict individual flows in urban areas better. Based on the model, we explain the exponential law of intra-urban mobility as a result of the exponential decrease in average population density in urban areas. Indeed, both empirical and analytical results indicate that the trip length and the population density share the same exponential decaying rate.
Year
DOI
Venue
2013
10.1038/srep02983
SCIENTIFIC REPORTS
Field
DocType
Volume
Exponential function,Law,Mathematics,Scaling law
Journal
3
ISSN
Citations 
PageRank 
2045-2322
31
1.43
References 
Authors
10
4
Name
Order
Citations
PageRank
Xiao Liang1935.23
Jichang Zhao232622.52
Li Dong358231.86
Ke Xu4143399.79