Strada statale 4 Via Salaria
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| Strada statale 4 | ||||
| Salaria | ||||
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| Route information | ||||
| Maintained by ANAS | ||||
| Length: | 208.2 km (129.4 mi) reduced to 175 km since the Ascoli-Porto d'Ascoli trait was declassed to provincial road |
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| Existed: | 1928 – present | |||
| Major junctions | ||||
| From: | City centre of Rome | |||
| Tangenziale Est and GRA in Rome; Autostrada A1 at Settebagni; SS 313 in Passo Corese; SS 636 di Palombara at Borgo Quinzio; SS 79 Ternana and SS 578 Salto Cicolana in Rieti; SS 17 in Antrodoco; SS 471 di Leonessa at Posta; SS 260 Picente at Amatrice; SS 685 delle Tre Valli Umbre at Arquata del Tronto; Raccordo autostradale 11 and SS 81 Piceno Aprutina at Ascoli Piceno | ||||
| To: | SS 16 Adriatica at Porto d'Ascoli | |||
| Location | ||||
| Regions: | Lazio, Marche | |||
| Highway system | ||||
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Strada statale 4 Via Salaria is an Italian state highway, linking Rome to the Adriatic sea passing through Rieti and Ascoli Piceno. Its route retraces that of the ancient Via Salaria roman road. It is a single carriageway highway for most of its route.
Strada statale 4 Via Salaria starts Northeast of Rome, just outside the Aurelian Walls, where until 1921 Porta Salaria was located to control access to the city. The initial stretch of SS 4 is more similar to an urban road than to an highway, as the area has now become densely populated and buildings have been raised by the roadside. After four kilometres SS4 meets Tangenziale Est di Roma and, from that point on, becomes a busy dual carriageway urban road, filled by people leaving or entering the city.
In the Castel Giubileo neighborhood, SS4 exits the city of Rome and meets Grande Raccordo Anulare (GRA), where most of the traffic flows. Immediately after, the road returns a single carriageway highway; in fact the subsequent 20 kilometer stretch, from the GRA to Passo Corese, has seen his importance reduced since the 6-lane Autostrada A1 runs parallel to it and absorbs most of the long-distance traffic. Nevertheless, SS4 remains important to many mid-sized towns in Rome's hinterland, such as Settebagni, Monterotondo and Mentana.
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Wikipedia