Strada statale 4 dir

Last updated
Strada Statale 4dir Italia.svg
State Highway 4dir
Strada statale 4dir
Route information
Maintained by ANAS
Length4.5 km (2.8 mi)
Existed1964–present
Major junctions
From Strada statale 4 Via Salaria at Passo Corese
Major intersections Autostrada A1 at Fiano Romano
To Provincial road SP 15/A Tiberina at Fiano Romano
Location
Country Italy
Regions Lazio
Highway system
Strada Statale 4 Italia.svg SS 4Strada Statale 5 Italia.svg SS 5

Strada statale 4 Dir or SS 4 Dir or SS 4 Salaria Dir is a short Italian state highway, linking Strada statale 4 Via Salaria at Passo Corese to the A1 motorway at Fiano Romano. [1]

It is a dual carriageway highway long only 4.5 kilometres (2.8 mi), made in 1964 and managed by ANAS. It is recognized as a road of national interest. [2]

Route

Strada statale 4 Dir was built to make more fluid traffic between the province of Rieti and Rome, taking advantage to the fact that, in that area, Via Salaria and the A1 motorway are very close (3 kilometres (1.9 mi)) but divided by Tiber river.

In fact, SS 4 Dir allows to travel from Passo Corese to Rome entirely on fast-flowings roads, linking Via Salaria to the A1 motorway northbound branch (A1 Dir) which is connected to Grande Raccordo Anulare and, from this, to Tangenziale Est of Rome. The alternative would be to use the Strada statale 4 Via Salaria that is a single carriage highway, extending travel times and clogging up traffic.

Strada Statale 4dir Italia.svg
Via Salaria dir
Exit↓Distance↓Province
AB-Vzw-blau.svg Strada Statale 4 Italia.svg Via Salaria 0.0 km (0 mi) Rieti
AB-AS-blau.svg Italian traffic signs - icona industria.svg Passo Corese logistics hub
Italian traffic signs - icona stazione FS.svg Fara in Sabina railroad station
0.8 km (0.50 mi) Rome
Italian traffic signs - ponte blu.svg Italian traffic signs - icona mare fiume lago.svg Tiber river 1.1 km (0.68 mi)
AB-AS-blau.svg Fiano Romano 2.8 km (1.7 mi)
Logo toerit blauw.svg Autostrada A1dir Italia.svg A1 northbound branch
(Fiano Romano motorway exit)

(only entry towards Passo Corese)
3.7 km (2.3 mi)
AB-Vzw-blau.svg Autostrada A1dir Italia.svg A1 northbound branch
(Fiano Romano motorway exit)

(only exit towards Rome)
Strada Provinciale 15a Italia.svg Provincial road SP 15/A Tiberina- Fiano Romano A1 toolboth
4.5 km (2.8 mi)

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References

  1. "ANAS regional roads and highway". italian National Autonomous Roads Corporation ANAS .
  2. Decree of President of the Council of Ministers 20 February 2018, Revisione delle reti stradali di interesse nazionale e regionale ricadenti nelle Regioni Abruzzo, Basilicata, Calabria, Campania, Lazio, Liguria, Marche, Molise, Puglia, Toscana e Umbria, published on laws gazetta n. 98, 28 February 2018