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Weather Study
Read more about the effects of weather on traffic safety.
Category: University Research Centers
Alabama Fatalities
Summary of Recommendations Speed Reduction Increase in patrol officers both at the ALEA and local levels Comprehensive demonstration speed reduction projects Legislative action to recognize problem and increase funding to ALEA specifically for field officers Continue hot-spot selective enforcement targeting and assure compliance to it Roadway improvements: trees, rollovers, utility poles, ditches, embankments Seat-belt (Restraint) […]
Driver and Vehicle At-Fault Analysis
This document reports the results of a study to determine on average over a large number of cases, which driver is more apt to be at fault in two-vehicle crashes that involve two types of drivers (e.g., large truck and car; car and pedestrian, car and bicycle, car and motorcycle, etc.). This information is essential […]
Impaired Driving Study
This document presents the results of a comparison of ID crashes compared to non-ID crashes over a recent three year period (FY2015-2017). An over-represented value of an attribute is a situation found where that attribute has a greater share of ID crashes than would be expected if it were the same as that same attribute […]
Vehicle Defects/Recalls Study
The high level analysis of vehicles in general for vehicle defects showed a high correlation of the defect type and the vehicle type, which is expected since certain defects apply only to trucks. The Causal Unit analysis given immediately below establishes that: (1) the most over-represented vehicles are heavy trucks (as we might expect), but […]
Large Trucks and CMVs Study
This section will attempt to stay away from the typical traditional safety recommendations in order to concentrate on those discovered from the research that is summarized in the next section. This does not mean that the safety practices typically taught as standard large truck training are not important. They are important and should be given […]
Restraint Use Issues Study
The goal of this problem identification is to assure that the restraint enforcement program considered by the state throughout 2019 is completely evidence-based, the evidence being derived from past data obtained from crash records. Changes from what appeared in the previous year HSP will only be noted in cases where they are considered to be […]
Speeding Study
Most Counter-Intuitive Findings Weather Conditions and Speed Lowest % speed related fatalities occur in rain Speed increases wet pavement crash % by a factor of 3.5 Impaired Driving and Speed DUI alcohol use increases 69% for speed crashes Reported drug use increases 44% for speed crashes Age and Speed Highest frequency ages, in order: 18, […]
Distracted Driving Study
Summary of Recommendations Major PI&E Effort Consequences of the current situation The mounting death and injury toll Everyone think they are the exception Focus of effort: no exceptions – no use of cell phones by driver Like smoking, it must become socially unacceptable Drivers need understanding of cognitive effects of any and all cell use […]
Motorcycle Crashes Study
This report has the objective of presenting a problem identification that was done on motorcycle (MC) crashes with the goal of establishing and improving countermeasures for reducing these crash frequencies and severities in the future. The IMPACT displays are based on a comparison of two subsets, both restricted to multiple-vehicle crashes, and both of which […]