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Multi-level hot zone identification for pedestrian safety.
Lee J, Abdel-Aty M, Choi K, Huang H. Lee J, et al. Among authors: choi k. Accid Anal Prev. 2015 Mar;76:64-73. doi: 10.1016/j.aap.2015.01.006. Epub 2015 Jan 17. Accid Anal Prev. 2015. PMID: 25603547
Potential field cellular automata model for pedestrian flow.
Zhang P, Jian XX, Wong SC, Choi K. Zhang P, et al. Among authors: choi k. Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Feb;85(2 Pt 1):021119. doi: 10.1103/PhysRevE.85.021119. Epub 2012 Feb 13. Phys Rev E Stat Nonlin Soft Matter Phys. 2012. PMID: 22463165 Free article.