Safety and Performance Benefits Associated with the Use of a Spotter Mirror: Impact on Driver Lane-Change Planning and Execution 2011-01-0595
Research was conducted to assess driver acceptance and performance associated with a spotter mirror feature intended to reduce the incidence of lane-change conflicts by enhancing drivers' ability to detect vehicles in their side blind zone. The spotter mirror consisted of an integrated spherical convex blind zone mirror inset within a larger planar mirror. The spotter mirror's field-of-view was designed to target the vehicle's side blind zone area and to help drivers quickly detect the presence or absence of a vehicle in the blind zone. The study captured normative lane-change behavior during an extended drive on public roadways, with and without access to the spotter mirror system, for a sample of familiar and unfamiliar supplemental mirror users. In order to capture more naturalistic lane-change behavior, drivers were informed that the purpose of the study was to evaluate the adequacy of existing road signs for navigating to a destination. The study also allowed performance under critical conflict situations to be evaluated by adopting the unique approach of using a confederate vehicle to stage conflict situations at designated points along the drive. Results found that access to the spotter mirror increases mirror sampling under critical situations where a vehicle is in the blind spot area. No evidence was found to suggest that use of the spotter mirror increases any inherent risk associated with performing lane changes.
Citation: Llaneras, R., Neurauter, M., Quinn, C., and Green, C., "Safety and Performance Benefits Associated with the Use of a Spotter Mirror: Impact on Driver Lane-Change Planning and Execution," SAE Technical Paper 2011-01-0595, 2011, https://doi.org/10.4271/2011-01-0595. Download Citation
Robert E. Llaneras, M. Lucas Neurauter, Charles Quinn, Charles Green
Virginia Polytechnic Inst. & State Univ., General Motors Company
SAE 2011 World Congress & Exhibition
Automotive Lighting Technology and Human Factors in Driver Vision and Lighting, 2011-SP-2300