Safety effects of cross-section design for two-lane roads. Volume 1

Impact evaluation of camera enforcement for traffic violations in Cali, Colombia, 2008–2014

Road traffic safety is essential, therefore in order to predict traffic fatalities effectively and promote the harmonious development of transportation, a traffic fatalities prediction model based ...

https://journals.sagepub.com/doi/pdf/10.1177/1748301817729953

Traffic fatalities prediction using support vector machine with hybrid particle swarm optimization

An approach is provided for determining safety levels for one or more locations based, at least in part, on signage information. The approach involves determining signage information associated with at least one location. The approach also involves causing, at least in part, a creation of at least one predictor model based, at least in part, on the signage information and one or more attributes associated with the at least one location. The approach also involves causing, at least in part, a classification of the at least one location, one or more other locations, or a combination thereof according to one or more safety levels using, at least in part, the at least one predictor model.

Method and apparatus for providing safety levels estimate for a travel link based on signage information

This report presents the findings of a research project to study and develop recommendations to minimize work zone crashes in Illinois. The objectives of this project were (1) to provide in-depth comprehensive review of the latest literature on traffic-related work zone crashes and conduct site visits of work zones in Illinois, (2) to analyze the frequency and severity of traffic-related work zone crashes in Illinois, (3) to quantify the impact of layout parameters on the risk of crash occurrence and develop practical recommendations to control the factors contributing to work zone crashes in Illinois, and (4) to evaluate the practicality and effectiveness of adding temporary/portable rumble strips within and before work zones. To achieve these objectives, the research team carried out six major tasks: (1) conducting a comprehensive literature review, (2) collecting and fusing all available data and reports on work zone crashes in Illinois, (3) analyzing work zone crashes and identifying their contributing factors, (4) identifying the impact of layout parameters on the risk of crash occurrences and developing practical recommendations to improve work zone layouts, (5) performing field experiments to evaluate the efficiency of using temporary rumble strips in work zones, and (6) evaluating the effectiveness of temporary rumble strips before work zones begin and at the edge of work zones. During this study, the research team identified a number of promising research areas for further in-depth analysis and investigation: (1) investigating the practicality and effectiveness of using new prototypes of temporary rumble strips at the edge of work zones, (2) improving safety for construction equipment entering and exiting work zones, and (3) optimizing work zone transportation management plans (TMPs) to maximize work zone safety while minimizing total work zone costs.

Minimizing Traffic-Related Work Zone Crashes in Illinois

The current procedure of estimating accident reduction benefit applies fixed accident rates for each road level. So that estimating accident reduction benefit is not considering the various characteristics of roadway geometries and traffics. In order to solve the problems mentioned in the above, models were developed considering the characteristics of roadway alignments and traffic characteristics. The developed models can be used to estimate the accident rates on new or improved roads. First of all, factors influence accident rates were selected. Those factors such as traffic volumes, intersections, connecting roads, pedestrian traffic signals, existence of median barrier, lanes are also selected based upon the obtain ability at the planning stage of roads. In this study, roads were classified into 4 groups based on lanes, roads level and the existence of median barriers. The regression analysis had been performed for each group with actual data associated with traffic, roads and accidents.

Development of traffic accident prediction models by traffic and road characteristics in urban areas

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Development of traffic accident prediction models by traffic and road characteristics in urban areas