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R31 / 1:M

Road Map Specification is administered by exactly one Traffic Territory

Traffic Territory administers one or many Road Map Specification

The term “administration” refers to the rule-setting authority over a Road. So a given map road is managed by a single authority or Traffic Territory. Even though a road may appear to originate in one Country on a map and continue on into another, that road will, in fact, correspond to two distinct Road Map Specifications.

For example, Interstate 5 (I-5) changes to Highway 99 when it crosses into Canada even though it is a continuous stretch of pavement.

Formalization

Road Map Specification.(Territory, Country) -> Traffic Territory.(Name, Country)