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Article
Safety Effectiveness of Stop Control at Ultralow-Volume Unpaved Intersections
Transportation Research Record: Journal of the Transportation Research Board (2006)
  • Reginald R. Souleyrette, Iowa State University
  • Ryan J. Tenges, Iowa State University
  • Thomas J. McDonald, Iowa State University
  • Thomas H. Maze, Iowa State University
  • Alicia Carriquiry, Iowa State University
Abstract

Establishment of the proper level of traffic control on low-volume rural roads can be problematic for local agencies. Ten years of crash data for more than 6,000 rural, unpaved intersections in Iowa were analyzed, with stop-controlled intersections compared with uncontrolled intersections. Crash models were developed with logistic regression and hierarchical Poisson estimation. For ultralow-volume intersections, those used by fewer than 150 vehicles per day, results indicated no statistical difference in the safety performance of each level of control. The effect of excessive use of control on safety performance also was tested for rural and urban applications, with no detrimental effect generally being indicated.

Keywords
  • Crash rates,
  • Logistic regression analysis,
  • Low volume roads,
  • Rural highways,
  • Stop signs,
  • Unsignalized intersections,
  • Highways,
  • Operations Management,
  • Traffic Management,
  • Safety and Human Factors,
  • Traffic Control,
  • Accident Statistics
Publication Date
2006
Citation Information
Reginald R. Souleyrette, Ryan J. Tenges, Thomas J. McDonald, Thomas H. Maze, et al.. "Safety Effectiveness of Stop Control at Ultralow-Volume Unpaved Intersections" Transportation Research Record: Journal of the Transportation Research Board Vol. 1967 (2006)
Available at: http://works.bepress.com/alicia_carriquiry/9/