NJDOT's Systemic Approach to Safety focuses on proactively addressing crash risk by widely implementing low-cost, proven effective countermeasures throughout a roadway network. The systemic approach considers elements not typically identified through traditional approaches.
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.
NJDOT noted a 10-16% reduction in total crashes due to implementations from road safety audits. Over 25 road safety audits RSAs have been conducted on state, county, and municipal roadways under HSIP.
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.
