One-way traffic
One-way traffic is traffic that moves in a single direction. A one-way street is a street either facilitating only one-way traffic, or designed …
Des
Night-blindness
Night-blindness is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night …
Mirror
A rear-view mirror is a flat mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle's rear w…
Lane
A lane is part of a roadway that is designated to be used by a single line of vehicles, to control and guide drivers and reduce traffic conflict…
Key
A car key or an automobile key is a key used to open and/or start an automobile. Modern key designs are usually symmetrical, and some use groove…
