1 The Statistical Analysis of Crash-Frequency Data: A Review and Assessment of Methodological Alternatives by Dominique Lord Assistant Professor Zachry Department of Civil Engineering Texas A&M University College Station, TX 77843-3136 d-lord@tamu.edu Fred Mannering Charles Pankow Professor School of Civil Engineering 550 Stadium Mall Drive Purdue University West Lafayette, IN 47907-2051 flm@purdue.edu Forthcoming in Transportation Research, Part A DOI 10.1016/j.tra.2010.02.001 March 22, 2010