Abstract
ABSTRACT Establishing appropriate speed limits is a critical issue in transportation engineering. This study entailed the examination of speed limits of rural tribal roads in Wyoming<apos;>s Wind River Indian Reservation that were set below reasonable levels. In particular, the roads’ 85th percentile speeds were modeled using quantile regression and their average speeds were modeled using random parameters, or mixed, Tobit regression. The risks of encountering drivers exceeding the speed limits were modeled using mixed logistic regression while the speed variances were modeled using mixed Tobit regression. The aforementioned outcomes were modeled as functions of traffic and roadway parameters. According to the results, it was concluded that the outcomes were influenced by the shoulder width, posted speed limit, and difference between the posted speed limit and the appropriate speed limit recommended by the USLIMITS2 expert system of the Federal Highway Administration. As such, recommendations were made concerning the roads under study.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
