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This type provides the ability to extend any data type that includes
it.
A specific road or trail that the user selected to follow
between this route via and the next route via.
Route shaping points influence the route path that is calculated, but are
not announced or listed in driving directions.
This type contains data fields intended to be used as child elements of
the rte element in the GPX 1.1 schema
Route via points are announced stops during a route.