P. G. Michael, F. C. Leeming and W. O. Dwyer, “Headway on Urban Streets: Observational Data and an Intervention to Decrease Tailgating,” Transportation Research Part F, Vol. 3, No. 2, 2000, pp. 55-64.
 L. Evans and P. Wasielewski, “Do Accident-Involved Drivers Exhibit Riskier Everyday Driving Behavior?” Accident Analysis and Prevention, Vol. 14, No. 1, 1982, pp. 57-64. http://dx.doi.org/10.1016/0001-4575(82)90007-0
 S. H. Fairclough, A. J. May and C. Carter, “The Effect of Time Headway Feedback on Following Behaviour,” Accident Analysis and Prevention, Vol. 29, No. 3, 1997, pp. 387-397.
 K. L. Young and P. M. Salmon “Examining the Relationship between Driver Distraction and Driving Errors: A Discussion of Theory, Studies and Methods,” Safety Science, Vol. 50, No. 2, 2012, pp. 165-174.
 J. Piao and M. McDonald, “Low Speed Car Following Behaviour from Floating Vehicle Data,” Proceedings of Intelligent Vehicles Symposium on IEEE Intelligent Vehicles Symposium, Columbus, 9-11 June 2003, pp. 462-467.
 P. P. Dey and S. Chandra, “Desired Time Gap and Time Headway in Steady-State Car-Following on Two-Lane Roads,” Journal of Transportation Engineering, Vol. 135, No. 10, 2009, pp. 687-693.
 J. R. Sayer, M. L. Mefford and R. W. Huang, “The Effect of Lead-Vehicle Size on Driver Following Behavior,” (Report number UMTRI-2000-15). The University of Michigan Transportation Research Institute, Ann Arbor, 2000.
 A. A. Saifizul, H. Yamanaka and M. R. Karim, “Empirical Analysis of Gross Vehicle Weight and Free Flow Speed and Consideration on Its Relation with Differential Speed Limit,” Accident Analysis and Prevention, Vol. 43, No. 3, 2011, pp. 1068-1073.
 A. A. Saifizul, H. Yamanaka, M. R. Karim and M. Okushima, “Empirical Analysis on the Effect of Gross Vehicle Weight and Vehicle Size on Speed in Car Following Situation,” Proceedings of the Eastern Asia Society for Transportation Studies, Vol. 8, 2011, pp. 305-317.
 A. A. Saifizul, H. Yamanaka and M. R. Karim, “Prospect of Using Weigh-in-Motion Based System for Enhancing Vehicle Weight Enforcement—A Case Study of Malaysian Roads,” Proceedings of the 17th ITS World Congress, Busan, 25-29 October 2010, 11 p.