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An intersection is the area shared by the joining or crossing of two or more
roads.
Since the main function of an intersection is to enable the road user to make a
route choice, it is a point of decision.
Hence the problems that are encountered by the motorist while passing through
an intersection must be recognized and the design should be in such a way that
the driving task is as simple as possible.
Intersection is also a point of large number of major conflicts, besides a
point of decision.
These conflicts may be due to the crossing maneuvers of vehicles moving in
different directions.
Good intersection design results from a minimization of the magnitude and
characteristics of the conflicts and a simplification of driver route selection
process.
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