Title page for ETD etd-01102008-165432


Type of Document Master's Thesis
Author Mudumba, Vamshi Krishna
Author's Email Address vmudum1@lsu.edu
URN etd-01102008-165432
Title The Effectiveness of the Introduction and Amendment of Traffic Laws on Louisiana Road Crashes
Degree Master of Science in Civil Engineering (M.S.C.E.)
Department Civil & Environmental Engineering
Advisory Committee
Advisor Name Title
Chester G. Wilmot Committee Chair
Hak-Chul Shin Committee Member
Sherif Ishak Committee Member
Keywords
  • Traffic laws
  • Before-and-After analysis
  • Louisiana
  • Analysis of Variance
Date of Defense 2007-12-07
Availability unrestricted
Abstract
Evaluating the safety benefit of a treatment provides information to the future safety projects of our transportation system. Various transportation laws have been amended in the state of Louisiana, aiming to reduce the roadway crash rates. The major traffic laws introduced or amended in the state in the past decade were the Graduated Driver Licensing (GDL) Program in 1998, repealing the mandatory motorcycle helmet law in 1999 and reenacting it in 2004, introducing the open alcohol container laws in 2000, and lowering the per se Blood Alcohol Content (BAC) from 0.10 to 0.08 percent in 2003. A before-and-after analysis was conducted using Analysis of Variance (ANOVA) to identify the effect of the above traffic laws in reducing crash rates in the state in the presence of other factors influencing crash rates. The dependent variables considered in the analysis were the total, fatal, injury, and property damage only (PDO) crash rates, while the independent variables were all the factors that significantly influence the above dependent variables. The analysis of each law was performed independently for both motor vehicle and motorcycle crash rates, as certain laws are applicable either for crashes due to motor vehicles or motorcycles. At the 5 percent significance level, the results concluded that GDL program was effective in decreasing the young driver motor vehicle injury, PDO and all crash rates; BAC law was effective in decreasing the alcohol-related motorcycle injury, motor vehicle injury, PDO and all crash rates. There was insufficient evidence at 5 percent significance level to prove that GDL program was effective in decreasing the young driver motor vehicle fatality rates; Open container law in decreasing the alcohol-related motor vehicle crash rates at all severity levels; BAC law in decreasing the alcohol-related motorcycle fatal, PDO and all crash rates, and motor vehicle fatality rates; Helmet laws in influencing motorcycle crash rates at all severity levels.
Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Thesis.pdf 395.56 Kb 00:01:49 00:00:56 00:00:49 00:00:24 00:00:02

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