1. Bureau of Transportation Statistics;Research and Innovative Technology Administration (RITA),2010
2. Texas Transportation Institute, Urban Mobility Report, http://www.providenceviaduct.com/resources/2-existing conditions/Urban Mobility Report 2009.pdf, 2009.
3. The RUM-tree: supporting frequent updates in R-trees using memos;Silva;VLDB J.,2009
4. Indexing the positions of continuously moving objects;Šaltenis;SIGMOD Rec.,2000
5. The TPR*-tree: an optimized spatio-temporal access method for predictive queries;Tao,2003