Our Free, Smartphone-Based Blind Zone Measurement Tool Enables:
Vehicle Buyers:
To compare
and select the best-in-class direct vision makes and models
Fleet Managers:
To measure and
address blind zones in vehicles on the road
Drivers:
To discover how much they can see
This document is funded by the Santos Family Foundation and disseminated under the
sponsorship of the Department of Transportation in the interest of information exchange. The United States
Government assumes no liability for the contents or use thereof. The United States Government does not
endorse products, manufacturers, or state or local policies or laws unless specifically indicated. Trade or
manufacturers’ names may appear herein solely because they are considered essential to the objective of this
document. Site contents represent the best technical judgement of U.S. DOT Volpe Center staff based on their
independent and objective technical analysis and expertise, and are not to be misconstrued as statements of
U.S. DOT policy or guidance.