Center for Injury Research and Prevention

Headway Time and Crashes Among Novice Teens and Experienced Adult Drivers in a Simulated Lead Truck Braking Scenario

TitleHeadway Time and Crashes Among Novice Teens and Experienced Adult Drivers in a Simulated Lead Truck Braking Scenario
Publication TypeJournal Article
Year of Publication2013
AuthorsMcDonald CC, Seacrist TS, Lee Y-C, Loeb H, Kandadai V, Winston FK
JournalProc Int Driv Symp Hum Factors Driv Assess Train Veh Des
Volume67
Pagination439-445
Date Published01/2013
Type of Articlejournal
Abstract

Driving simulators can be used to evaluate driving performance under controlled, safe conditions. Teen drivers are at particular risk for motor vehicle crashes and simulated driving can provide important information on performance. We developed a new simulator protocol, the Simulated Driving Assessment (SDA), with the goal of providing a new tool for driver assessment and a common outcome measure for evaluation of training programs. As an initial effort to examine the validity of the SDA to differentiate performance according to experience, this analysis compared driving behaviors and crashes between novice teens (n=20) and experienced adults (n=17) on a high fidelity simulator for one common crash scenario, a rear-end crash. We examined headway time and crashes during a lead truck with sudden braking event in our SDA. We found that 35% of the novice teens crashed and none of the experienced adults crashed in this lead truck braking event; 50% of the teens versus 25% of the adults had a headway time <3 seconds at the time of truck braking. Among the 10 teens with <3 seconds headway time, 70% crashed. Among all participants with a headway time of 2-3 seconds, further investigation revealed descriptive differences in throttle position and brake pedal force when comparing teens who crashed, teens who did not crash and adults (none of whom crashed). Even with a relatively small sample, we found statistically significant differences in headway time for adults and teens, providing preliminary construct validation for our new SDA.

Alternate JournalProc Int Driv Symp Hum Factors Driv Assess Train Veh Des
PubMed ID25197724
PubMed Central IDPMC4155757
Grant ListK99 NR013548 / NR / NINR NIH HHS / United States
T32 NR007100 / NR / NINR NIH HHS / United States