Studies from Iowa State University Describe New Findings in Risk Management (Driver decision-making in the dilemma zone – Examining the influences of…

Studies from Iowa State University Describe New Findings in Risk Management (Driver decision-making in the dilemma zone - Examining the influences of clearance intervals, enforcement cameras and the provision of advance warning through a panel ...)

By a News Reporter-Staff News Editor at Insurance Weekly News -- Research findings on Risk Management are discussed in a new report. According to news reporting originating in Ames, Iowa, by VerticalNews journalists, research stated, "In recent years, there have been a series of innovations in the field of vehicle detection at intersection approaches. Modern radar-based smart sensors make it possible to track individual vehicles in close proximity to an intersection."

The news reporters obtained a quote from the research from Iowa State University, "These advancements in technology potentially enable the provision of vehicle and site-specific decision dilemma zone protection at the onset of the yellow indication at signalized intersections. To exploit this opportunity, it is critical to develop an in-depth understanding of those factors influencing a driver's decision to stop or go at the onset of yellow. This study investigates how signal timing strategies such as yellow interval durations, all-red clearance intervals, advance warning flashers, and automated camera enforcement affect driver decision-making. Data from 87 intersection approaches across five regions of the United States are used to develop a series of decision (i.e., probability of stopping) curves using vehicle trajectory and signal phasing data. A panel data random parameters probit model is used to account for heterogeneity across locations, as well as correlation in driver decision-making, due to unobserved factors that are unique to each signalized intersection. The results demonstrate drivers are more likely to stop at locations where enforcement cameras or flashers are present."

According to the news reporters, the research concluded: "Stopping was also more prevalent at intersections with lower speed limits, longer crossing distances, and where pedestrian crosswalks were present."

For more information on this research see: Driver decision-making in the dilemma zone - Examining the influences of clearance intervals, enforcement cameras and the provision of advance warning through a panel data random parameters probit model. Accident Analysis and Prevention, 2016;96():351-360. Accident Analysis and Prevention can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Accident Analysis and Prevention - www.journals.elsevier.com/accident-analysis-and-prevention/)

Our news correspondents report that additional information may be obtained by contacting P.T. Savolainen, Iowa State University, Dept. of Civil Construct & Environm Engn, Ames, IA 50011, United States. Additional authors for this research include A. Sharma and T.J. Gates.

Keywords for this news article include: Ames, Iowa, United States, North and Central America, Risk Management, Iowa State University.

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