1. Reducing Speeding-Related Crashes: An Evaluation of Current and Emerging Countermeasures 1 Nathan Doble & Ivan Cheung AASHTO SCOHTS Annual Meeting April 28, 2016

2. NTSB Safety Studies Led by research staff partnering with modal investigative officeLed by research staff partnering with modal investigative office Address transportation safety issues from a broad, nationwide perspectiveAddress transportation safety issues from a broad, nationwide perspective Opportunity for NTSB to be proactive instead of reactiveOpportunity for NTSB to be proactive instead of reactive Typically 12-16 months durationTypically 12-16 months duration 2

3. Safety Recommendation Goals Increase use of the most effective countermeasuresIncrease use of the most effective countermeasures Increase adherence to best practicesIncrease adherence to best practices Remove obstacles to implementing effective countermeasuresRemove obstacles to implementing effective countermeasures Close knowledge gaps on promising but unproven countermeasuresClose knowledge gaps on promising but unproven countermeasures 3

4. Study Scope Passenger vehiclesPassenger vehicles Wide range of countermeasuresWide range of countermeasures All the EsAll the Es Internationally-successful countermeasuresInternationally-successful countermeasures Innovative/emerging countermeasuresInnovative/emerging countermeasures In-vehicle technologiesIn-vehicle technologies Insurance incentivesInsurance incentives Driver feedback toolsDriver feedback tools 4

5. Gathering Stakeholder Perspectives Federal DOT agenciesFederal DOT agencies State DOTs, SHSOsState DOTs, SHSOs State and local law enforcementState and local law enforcement Vehicle manufacturersVehicle manufacturers Insurance companiesInsurance companies Advocacy groupsAdvocacy groups ResearchersResearchers 5

6. Questions for SCOHTS What strategies to reduce speeding are working for you?What strategies to reduce speeding are working for you? What challenges do you face in implementing effective speeding countermeasures?What challenges do you face in implementing effective speeding countermeasures? Where do you need better data, better guidance material, more research?Where do you need better data, better guidance material, more research? 6

7. Contacts Nathan DobleNathan Doble nathan.doble@ntsb.govnathan.doble@ntsb.gov 202-314-6593202-314-6593 Ivan CheungIvan Cheung ivan.cheung@ntsb.govivan.cheung@ntsb.gov 202-314-6570202-314-6570 7