The basic design of motor vehicles has not changed very much in the past. Obstacles blocking a driver's view
can't be eliminated. The frame holding the front windscreen, the door pillars or rear panels are all necessary parts
of the structure.
Likewise, headrests have saved many people from a broken neck in a crash.
But
these objects can block a driver's
field of vision, often with tragic consequences. A pedestrian or cyclist may be
hidden in that
blind area for a split second.
There are two categories of
blindspots -inside the vehicle (mentioned above) and those created by obstacles
outside :