According to 2013 statistics from the National Highway Traffic Safety Administration (NHTSA), about 840,000 accidents and 300 deaths are attributable to blind-spot issues a year in the United States.

It’s a useful backup, DiCicco says, but you still need to look to see that it’s clear. “I’ve had several situations where my blind spot warning let me down,” DiCicco says.

The union representing Edmonton Transit Service drivers wants the city to address a blind spot on buses. A 69-year-old pedestrian was struck and killed while using a marked crosswalk on Wednesday ...