Route Number Shields
Puerto Rico roads are classified according to the network they belong to. Thus there are four types:
- Primary Roads
- Urban Primary Roads
- Secondary (or inter-municipal) Roads
- Tertiary (or intra-municipal) Roads
In this regard a primary road is one which is part of the Primary Network, an urban primary road is part of the Urban Primary Network, etc. The same highway, such as the one leading from Ponce to San Juan, may change between networks, but the highway will continue to have the same number. Thus PR-1, one of the roads between Ponce and San Juan, is signed as Urban Primary ( PR-1) inside the Ponce city limits, then it is signed as Secondary ( PR-1) in Ponce's rural barrio Capitanejo, and then it is again signed as Urban Primary ( PR-1) on its entry into the town of Santa Isabel.
Primary roads are numbered 1 through 99, secondary roads are numbered 100 to 299, and municipal (tertiary) roads are numbered 300 to 9999.
Until 1999, all non-tolled numbered highways in Puerto Rico had the same route shield, a square with a white-on-black half-circle with the route number in the bottom two thirds and a map of Puerto Rico with the words "Puerto Rico" written inside in the top third.
Read more about this topic: List Of Highways In Puerto Rico
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