Road Traffic Safety

NHTSA headlights
News October 16, 2018
The U.S. National Highway Traffic Safety Administration (NHTSA) last week said it was moving to allow advanced headlights known as “adaptive driving beams” to be used in vehicles on U.S. roads that could help prevent nighttime crashes.   The agency said it was acting in response to a petition filed...
Mobileye collision-avoidance system

The Mobileye collision-avoidance system was found to be 96% accurate for alerts warning of potential collisions. Photos courtesy of Mobileye.

Article October 05, 2018
Imagine that you are a bus driver in today’s urban environment. You are surrounded by rushed and distracted drivers and pedestrians, cyclists riding in your blind spots, delivery trucks stopping suddenly in front of you, and challenging weather resulting in treacherous road conditions. At the same...
Rails next to trails
Article October 05, 2018
There are approximately 212,000 at-grade railroad crossings in the U.S., usually consisting of one or more railroad tracks crossing a public highway. In some cases, and increasingly commonly, there is an additional presence of a multi-use path or trail, which adds a new level of complexity to...
U.S. 23 Flex Route project Michigan
Article October 05, 2018
In 2017, the Michigan Department of Transportation (MDOT) opened its first Flex Route along U.S. 23 in Washtenaw and Livingston counties. For years, the problems of peak-hour directional traffic, incident management, and corridor operations and safety eluded the department. All short-term solutions...
Brian Scott
Article October 05, 2018
Intersections offer a challenge to traffic safety professionals across the country because a third of all fatal crashes occur at intersections. This is primarily caused by right-angle crashes that result from a driver failing to recognize the hazard of oncoming traffic or misjudging the distance or...
Contra Costa Transportation Authority breaks ground on I-680 express lane
News October 04, 2018
The Contra Costa Transportation Authority (CCTA), the Metropolitan Transportation Commission (MTC) and the California Department of Transportation (Caltrans) District 4 announced the start of construction on a new southbound Express Lane on I-680 that will stretch 11 miles from south of Marina...
roundabouts
News September 28, 2018
The Pennsylvania Department of Transportation (PennDOT) recently announced that according to department data, crashes, injuries and fatalities decreased at 11 roundabouts in the state after they were installed.   PennDOT recently reviewed data for 11 roundabouts on state routes at intersections...
Hurricane impacts to traffic, roadways
News September 11, 2018
States of emergency have been declared in North Carolina, South Carolina and Virginia in preparation for Hurricane Florence's arrival, a Category 4 hurricane expected to hit the Atlantic Coast later this week, including evacuation plans and transit cancellations for some.   An evacuation of South...
bicycle projects
News September 07, 2018
Gov. Scott Walker announced yesterday that 29 agencies across the state of Wisconsin will receive $15.7 million in funding for Transportation Alternative Program (TAP) projects.   TAP projects are federally funded, smaller scale transportation projects which have a utilitarian purpose which expand...
Variable speed limit warning sign
Article September 05, 2018
In Lake County, Ohio, winter weather spells trouble for a stretch of I-90 between S.R. 528 and S.R. 44.   Over a 10-year span, more than 800 winter crashes were recorded along this corridor. On Dec. 8, 2016, an intense snow band that produced massive squalls contributed to a bus crash that led to a...
traffic safety reflectors
News September 05, 2018
As part of the Toward Zero Deaths plan for the northern part of the state, the Michigan Department of Transportation (MDOT) will begin placing hundreds of roadside reflectors this week along 76 miles of the iconic M-22 route.   The $300,000 project includes more than 1,300 reflectors—called road...
Figure 1

Figure 1. TMA light configurations investigated in the study.

Article September 04, 2018
As state departments of transportation (DOTs) shift their attention towards maintenance of existing infrastructure, improving safety in both stationary and mobile work zones is becoming more of a consideration.   One countermeasure to help improve safety in mobile work zones is the truck-mounted...
smart road technology
News September 04, 2018
This week, the Colorado Department of Transportation (CDOT) will test out a new technology placed inside the pavement along Brighton Boulevard in Denver to measure the speed of cars traveling over that stretch of road.   This is an example of the agency’s RoadX program, a combination of new methods...
public transit usage
News August 31, 2018
More public transit usage can significantly lessen cities' traffic death rates, according to a recent American Public Transportation Association (APTA) analysis.   Conducted by APTA and advocacy group Vision Zero Network, the analysis showed that metro areas that log more than 40 annual transit...
roadway traffic fatalities
News August 23, 2018
The U.S is on pace to record close to 40,000 roadway and highway deaths for the third consecutive year, according to preliminary figures released Wednesday by the National Safety Council (NSC).   Based on state-reported statistics, the NSC says approximately 18,720 people died on U.S. roadways...
cable highway barrier

Image: Gregory Highway Products

News August 21, 2018
Drivers in the state of Oklahoma could soon be seeing fewer guardrails on the side of the highway, as the Oklahoma Department of Transportation (ODOT) said it is planning to install more cable barriers.   The department said it plans on installing 10 miles of cable barriers, some of which is...
rural driving intersection safety
Article August 07, 2018
Countermeasures are used to help makes roads safer by reducing crashes. However, while we often know that they reduce crashes we usually do not know the exact effect they have on driver behavior and how this reduces crashes. However a new data set from the Second Strategic Highway Research Program...
wrong-way detection system
News August 02, 2018
Phoenix-area drivers are used to seeing freeway entrance-ramp meters with alternating green and red traffic lights during weekday rush hours. But some of the red lights in I-17 ramp meters also play a role as part of the pilot wrong-way vehicle detection system being tested by the Arizona...
Bosch road condition alert service

Image: Bosch

News July 27, 2018
This week, Bosch introduced a predictive road condition service that can help make sure self-driving vehicles remain safe even on wet and icy roads.   The technology takes multiple possible weather forecast scenarios from Finnish company Foreca into consideration, so a vehicle that uses it knows...
Blowing Dust Area

Image: Arizona DOT via Arizona Public Media

News July 24, 2018
The Arizona Department of Transportation (ADOT) is installing dust-detection software along a vulnerable stretch of I-10 to prevent dust-related crashes.   New technology will detect if high amounts of dust particles are in the air that could hamper visibility. It will automatically activate...
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