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USA Freeway System (below 1:500k)
This layer presents rural and urban interstate highways. It is part of the National Highway Planning Network, published by the Federal Highway Administration as part of the... -
USA Freeway System (over 1:500k)
This layer presents rural and urban interstate highways. It is part of the National Highway Planning Network, published by the Federal Highway Administration as part of the... -
USA Freeway System
This layer presents rural and urban interstate highways. It is part of the National Highway Planning Network, published by the Federal Highway Administration as part of the... -
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E' possibile inoltre accedere al registro usando le API (vedi Documentazione API).