The Safety Concern: In the last decade, 8,752 motorists have died on Missouri's roads, leaving the state searching for an effective way to implement its Toward Zero Deaths strategy.
The Solution: Five Design-Build teams competed in a unique procurement process to offer MoDOT the most cost-effective safety treatments based on Highway Safety Manual analysis.
The Result: A winning bid to address improvements at all 31 identified locations, projected to prevent 73 deaths and serious injuries over 10 years and be completed nine months ahead of schedule.
During the last ten years, 8,752 motorists left on a trip in Missouri, but never made it to their destination. Unfortunately, they joined more than 36,000 other motorists annually in this country who ended their trip, unexpectedly, as a tragic statistic.
MoDOT's St. Louis District developed a bold strategy to implement Missouri's Blueprint: A Partnership towards Zero Deaths, the state's strategic highway safety plan. Utilizing three-year crash data, they identified 31 locations with the highest safety concerns in two counties. Then, they chose five teams comprised of nationally known traffic/safety consultants and contractors to deliver safety proposals to MoDOT.
The teams competed in a unique design-build procurement which emphasized implementing the most cost-effective safety treatments utilizing Highway Safety Manual (HSM) analysis. A fixed price, $24.11 million, variable scope contract encouraged teams to provide the maximum safety benefit with the dollars available.
Proposals were scored based on four categories, and one of those categories was HSM safety analysis. HSM analysis was required for each proposed safety improvement, including calculations of the projected reduction of fatal and serious injury crashes.
The best value team targeted safety improvements at all 31 locations. Their proposal included system-wide application of high-friction surface treatment (HFST), inlaid pavement markers, transverse rumble strips, LED stop signs, intersection conflict warning system (ICWS) and a round-about. Over the period of 10 years, the project is expected to prevent 73 fatal and serious injury crashes. In addition, the winning project is projected to be complete nine months ahead of MoDOT's requirement in the initial procurement.
