Thesis (M.S.)--Florida State University, 2005. / Advisor: Dr. Lisa K. Spainhour, Florida State University, College of Engineering, Department of Civil and Environmental Engineering. Title and description from dissertation home page (viewed June 15, 2005). Document formatted into pages; contains xiv, 112 pages. Includes bibliographical references.

Thesis (Ph. D.)--Florida State University, 2006. / Advisor: Lisa K. Spainhour, Florida State University, College of Engineering, Dept. of Civil and Environmental Engineering. Title and description from dissertation home page (viewed Sept. 15, 2006). Document formatted into pages; contains xiv, 237 pages. Includes bibliographical references.

Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains viii, 223 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 217-223).

Thesis (M.E.T.)--University of Canterbury, 2007. / Typescript (photocopy). "July 2007." Includes bibliographical references (p. 164-168). Also available via the World Wide Web.

Thesis (M.S.)--Florida State University, 2005. / Advisor: Dr. John O. Sobanjo, Florida State University, College of Engineering, Dept. of Civil and Environmental Engineering. Title and description from dissertation home page (viewed June 8, 2005). Document formatted into pages; contains xii, 132 pages. Includes bibliographical references.

Thesis (Ph. D.)--Georgia Institute of Technology, 2006. / Includes bibliographical references (p. 209-211). Also available online via the Georgia Institute of Technology ETD website (http://etd.gatech.edu/).

As the movement to decriminalize marijuana has gained more support throughout the United States, as of early 2017, 21 states have decriminalized the possession of a small amount of marijuana for personal recreational use, and more states are expected to decriminalize marijuana (GOVERNING 2017). Despite this strong move toward decriminalizing marijuana, however, the consequences of implementing such a policy are still very much unknown. One of the concerns regarding this movement to decriminalize marijuana is its potential impact on road safety (Schrader 2015; Roberts 2017; Halsey 2015). Although there are a few studies that have examined the association between marijuana use and availability and traffic fatalities, these studies are correlational in nature and show divergent outcomes (Anderson and Ree 2011; Anderson et al. 2013). Furthermore, these studies do not examine the impact of decriminalizing marijuana on road safety. In order to fill this gap, my research investigates the causal association between marijuana decriminalization and traffic fatalities by using the synthetic control method, pioneered by Abadie et al. (2010). This study estimates the causal effects of 2009 Massachusetts's marijuana decriminalization on Massachusetts' total traffic fatalities by comparing Massachusetts's trends in total traffic fatalities and its synthetic counterpart. The results of this study show a temporary increase in the number of total traffic fatalities in Massachusetts compared to its synthetic counterpart between 2009 and 2012, suggesting marijuana decriminalization's detrimental effect on road safety. Future studies should consider investigating the heterogeneous effects of marijuana decriminalization on traffic fatalities based on age groups, gender, and residential density and the causal mechanism between marijuana decriminalization and traffic fatalities.

Thesis (M.S.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains vi, 75 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 47-50).

Thesis (M.S.)--Florida State University, 2005. / Advisor: Dr. Lisa K. Spainhour, Florida State University, College of Engineering, Dept. of Civil and Environmental Engineering. Title and description from dissertation home page (viewed June 13, 2005). Document formatted into pages; contains xiii, 122 pages. Includes bibliographical references.

Thesis (M.S.) Florida State University, 2005. / Advisor: Lisa K. Spainhour, Florida State University, FAMU-FSU College of Engineering, Dept. of Civil Engineering. Title and description from dissertation home page (viewed Jan. 12, 2006). Document formatted into pages; contains xii, 105 pages. Includes bibliographical references.