Answer:
Coupling
Explanation:
two or more things doing something the same
When people are traveling on a road or on a highway,
travelers can always expect to see information about the road on which they are
traveling such as curves in the road, speed limits, speed suggestions,
road/highway names, etc. Signage works
well in most conditions; however, for some road situations special caution is
taken to help ensure information will not be missed by travelers. As an
extra step/precaution, white painted letters and symbols are placed on the
surface of the roadway; this measure helps prevent what would could potentially
be a dangerous/deadly situation.
