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Icy conditions in Texas led to a massive pile-up on Interstate 35W in Fort Worth on Thursday morning and prompted authorities to urge residents to stay home. At least six people were killed in the crash, which involved 133 vehicles, FOX 4 of Dallas-Fort Worth reported. About 60 people were transported to area hospitals, the report added. […]
When the chilly temperatures of winter set in, will your vehicle be ready for the cold? Learn what to do before you go, review your vehicle safety checklist, and make sure you’re prepared in case of an emergency. Read NHTSA’S winter driving tips here.
The unique character of the transportation environment often presents challenges associated with managing construction stormwater runoff and protecting receiving waters. Traditional guidance and regulation do not always distinguish between residential, commercial, and linear development. If inappropriate and ineffective practices are implemented or expected by regulators, it can create inefficiencies for the transportation stormwater professional. Read […]
This study evaluated the effectiveness of connected vehicle (CV) technologies in adverse visibility conditions using microscopic traffic simulation. Traffic flow characteristics deteriorate significantly in reduced visibility conditions resulting in high crash risks. This study applied CV technologies on a segment of Interstate I-4 in Florida to improve traffic safety under fog conditions. Two types of […]
TUSCALOOSA, Ala. — The worst region for flash floods in the continental United States is likely the Southwest, according to a recent analysis of flash floods by The University of Alabama. Using hydrologic data, along with socio-economic information, researchers at the UA Center for Complex Hydrosystems, led by center director Dr. Hamid Moradkhani, mapped the hotspots for […]
More intense and more frequent extreme precipitation events are projected in a warming climate. With this risk comes possible detrimental outcomes based on what has happened in the past. Water rises over bridges. Homes, businesses, and roads on steep hills fall away in a landslide. Tornadoes rip through towns. Planes are grounded. Coastal areas are […]
This document contains examples of water buildup locations on mileposted and non-mileposted roadways. While these examples may be used by some statewide agencies (e.g., ALEA and ALDOT) to address potential problems that could either be fixed or mitigated by enforcement, they also have value in training of local agencies. This training should include instruction on […]
Wet Pavement Hot-spots are determined to help law enforcement officers know where crashes are more likely to occur during and shortly after wet weather. This will enable them to prevent crashes by law enforcement presence, which tends to slow the traffic and make the drivers more attentive. It will also be useful to positions law […]
The unpredictability of weather conditions may have direct or indirect impacts on traffic operations and driver behaviors (e.g. speed, headway, and gap). The impacts may occur during or after the weather events, be of short- or long-term duration, and include direct and indirect effects. Adverse winter storms, flooding, or hurricanes may cause major delays in […]
This PowerPoint presents a model of data integration of geo-located weather and roadway data for decision making with the US Department of Transportation, the National Weather Service, and end- users who need integrated data for better roadway weather decision making. The application of this Roadway Weather Data Implementation (RWDI) in Alabama and Georgia serves as […]
