Turn signals mounted on exterior rearview mirrors are increasingly being used as original equipment on passenger cars and light trucks. The potential for mirror-mounted turn signals (MMTS) to improve the geometric visibility of turn signals is examined in this report. A survey of U.S. and European regulations showed that the turn signals of a vehicle that is minimally compliant with U.S. regulations are not visible to a driver of a nearby vehicle in an adjacent lane. Measurements of mirror location and window geometry were made on 74 passenger cars and light trucks, including 38 vehicles with European-style side repeaters. These data were combined with data on driver eye locations from two previous studies to assess the relative visibility of MMTS and conventional signals.
Geometric Visibility of Mirror-Mounted Turn Signals
2003
39 pages
Report
No indication
English
Geometric visibility of mirror mounted turn signals
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