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Cannabis and Highway Safety in Connecticut

Connecticut
When fatal crash toxicology data showed an increase of cannabis by drivers, CTDOT worked with CTHSO, GHSA, and other partners to raise awareness of the dangers of driving impaired.
CTDOT Press Release2023 Safety Summit Poster

Mumble Strip and Stripe Research and Evaluation

Arkansas
ARDOT evaluated mumble strips as a variation of rumble strips that reduce noise pollution while maintaining driver safety. They found comparable safety effectiveness with less environmental impact.
ARDOT Newsletter Article, pg. 52023 Safety Summit Poster

The Safe System Approach in New Jersey

New Jersey
NJDOT has integrated the six principles and five elements of the Safe System Approach (SSA) into its programs, practices, and projects, aiming to achieve zero fatalities and serious injuries on all public roads.
Presentation Slides2024 Safety Summit Poster

Using Before and After Tools to Make Data Driven Safety Decisions

New Jersey
As part of the HSIP, NJDOT uses observational before/after analyses with a volume adjustment tool to evaluate countermeasure effectiveness and safety benefits. For example, post-deployment evaluation of centerline rumble strips showed a total crash cost benefit of more than $11 million for all target crashes.
2024 Safety Summit Poster

Wrong-Way Driver Action Plan

New Hampshire
The NHDOT Wrong-Way Driver Action Plan aims to address the increasing threat of wrong-way drivers by identifying risk factors and guiding systemic deployment of countermeasures.
Local News Article2024 Safety Summit Poster

Two-Way to All-Way Stop Control

New Hampshire
When all-way stop control (AWSC) was applied as a systemic safety improvement in rural areas of New Hampshire, total crashes reduced by 71%; 90% in injury crashes, and 75% in fatal crashes.
NHDOT Newsletter ArticlePress Release, ConcordPress Release, SalisburyPresentation, Chester2024 Safety Summit Poster

Safe Truck Mobility for North Dakota Winter Roads

North Dakota
North Dakota Highway Patrol and North Dakota DOT studied crash risk and travel disruption due to severe winter storms through a Safe System lens. They found several proactive opportunities for safe truck mobility during winter storm events.
Research ReportResearch BriefTRID Record2024 Safety Summit Poster

Get Involved with Transportation Research Board (TRB)

NCHRP
NCHRP and BTSCRP develop resources for DOTs, transportation professionals, and other agencies. Resources include research related to the AASHTO Highway Safety Manual and AASHTO Manual for Assessing Safety Hardware, safety guides for practitioners, and behavioral research. Transportation professionals may contribute problem statements, conduct research, and volunteer for project panels.
NCHRPBTSCRPTRIS2024 Safety Summit Poster

Safety Tools for Intersection Control Evaluation (ICE)

FHWA
ICE is a process that provides a framework, steps, and tools for agencies to make data-driven safety decisions about intersection forms and controls. NCHRP and FHWA offer several tools to support ICE.
NCHRP Report 1087: Guide for ICEFHWA ICE WebpageNCHRP Report 948: 20 Flags Calculator2024 Safety Summit Poster
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