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This 68-kilometer (42-mile) long, toll-free autostrade forms a beltway around Rome. It connects to radial routes such as A-24 (which extends east toward A-14 on the Adriatic coast), the northern and southern spurs from A-1 (which extends north toward Milan and south toward Naples), and the Rome-Fiucimino Autostrade (secret A-91). The autostrade, which was completed in 1981, has an unposted designation of A-90 that was assigned about a decade later.
The six-lane "GRA" autostrade is designed to modern safety standards, and is signed better than most other freeways in Italy. (It is one of the rare Italian freeways with exit numbers.) To ease congestion, there are collector-distributor (C/D) roads at major interchanges.
In terms of aesthetics, the "GRA" autostrade is like a suburban freeway in North America, not unlike the Capital Beltway (I-495 and I-95) around suburban Washington.
For more information on Italy's autostrade network, please visit the official Autostrade web site or Eugenio Merzagora's unofficial autostrade web site.
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