National Research Council (U.S.). Transportation Research Board
Published: 2011
Total Pages: 117
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TRB's Transportation Research Record: Journal of the Transportation Research Board, No. 2241 consists of 13 papers that explore highway safety metrics implementation and evaluation, levels of safety at freeway exits, calibration of Highway Safety Manual predictive models, estimating crash modification factors for daytime versus nighttime work zones, and an evaluation of the Texas Department of Transportation safety improvement index as a prioritization tool. This issue of the TRR also examines the effects of underreporting crash data, crash variances estimated by poison models, modeling of driver decision at onset of yellow light at signalized intersections, roundabout performance, automated detection of spatial traffic violations, identifying and quantifying intersection obstruction and its severity, and workplace simulator for geometric design of rural roads.