The Autostrada A4, or Autostrada Serenissima ("Serenissima motorway"), is an autostrada (Italian for "motorway") 523.1 kilometres (325.0 mi) long in Italy located in the regions of Piedmont, Lombardy, Veneto and Friuli-Venezia Giulia which connects Turin and Trieste via Milan and Venice crossing the entire Po Valley from west to east.

Autostrada A4 shield}}
Autostrada A4
Autostrada Serenissima
Serenissima motorway
Route information
Part of E55, E64 and E70
Maintained by ANAS
Length523.1 km (325.0 mi)
Existed1927–present
Major junctions
West endTurin
Major intersections A55 in Turin
A5 in Borgo d'Ale
A26 in Greggio
A50 and A52 in Rho
A8 in Pero
A51 in Carugate
A58 in Agrate Brianza
A35 in Ospitaletto
A21 in Brescia
A22 in Verona
A31 in Vicenza
A13 in Padova
A57 in Venice
A27 in Preganziol
A28 in Santo Stino di Livenza
A23 in San Giorgio di Nogaro
A34 in Palmanova
RA13 in Sistiana
East endTrieste
Location
CountryItaly
RegionsPiedmont, Lombardy, Veneto, Friuli-Venezia Giulia
Highway system
A 3 A 5

The city of Venice (or rather, Mestre, a mainland frazione of Venice) originally formed a bottleneck on the A4, but is now bypassed by the Passante di Mestre (the old route through Mestre was renumbered A57). The A4 passes just north of the city of Milan, where it is toll-free. It is a part of the E55, E64 and E70 European routes.

Overview

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Due to the different companies that manage the different parts of the motorway, it is often referred to as formed by five sections: Turin-Milan, Milan-Brescia, Brescia-Padua, Padua-Venice and Venice-Trieste. As it runs through the whole Pianura Padana, which is a densely populated and highly industrialized area, A4 is one of the most trafficked motorways of Italy.

Before World War II, three sections of the motorway were built: Turin-Milan, Milan-Brescia and Padua-Venice. The first section built was Milan-Bergamo, which opened on 24 September 1927, being just the second motorway to open, following the Autostrada dei Laghi in 1924/25. On 29 August 1931, it was extended to Brescia. On 25 October 1932, the Turin-Milan section opened, and on 15 October 1933, the Padua-Venice section.

The two sections became connected on 10 February 1962, when the Brescia-Padua section opened. The Venice-Trieste section was opened on 22 February 1970. The original road through Mestre, now designated A57 and named "Tangenziale di Mestre", opened on 3 September 1972.[1]

A4 is a dual-carriageway, six-lane motorway for most of its length. The stretch between Milano Est tollgate and Bergamo has been an eight-lane motorway since 30 September 2007. The stretch from Venice to Trieste is instead still a four-lane motorway, but it is planned to upgrade this stretch over motorway to six lanes.

Operators

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Passante di Mestre

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The route of the "Passante di Mestre" (marked in blue) and the Venice-Mestre motorway system

The passante di Mestre is a part of the A4 motorway, opened to traffic on 8 February 2009. The objective of the route is to reduce the volume of auto- and truck-based traffic passing through Mestre (a mainland frazione of Venice) to reach non-local destinations like Austria, Slovenia and other Eastern European countries.

The new includes three lanes plus one emergency lane. Each lane measures 3.75 metres (12.3 ft) apart from the emergency lane which measures only 3 metres (9.8 ft), and the new stretch of motorway totals 32.3 kilometres (20.1 mi).

Major cities

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Autostrada A4 Passes through Turin, Settimo Torinese, Novara, Cusano Milanino, Cinisello Balsamo, Monza, Bergamo, Brescia, Verona, Vicenza, and Padua.

Route

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Autostrada A4 near Milan
 
Autostrada A4 near Monza
 
Autostrada A4 near Bergamo
 
Autostrada A4 near Meolo
 
Rest area "Scaligera"
 
Autostrada A4 near Mestre (Passante di Mestre)
 
Autostrada A4 near Vigonza
 
Autostrada A4 near Quarto d'Altino
 
Autostrada A4 near Sistiana
  TORINO - TRIESTE
Autostrada Serenissima
Exit ↓km↓ ↑km↑ Province European Route
    Torino C.so Giulio Cesare 0.0 km
(0 mi)
523.1 km
(325.0 mi)
TO   E64
  Torino Abbadia di Stura
  Tangenziale Nord
  Turin Caselle Airport
    Aosta
    Traforo del Frejus -     France–Italy border
2.0 km
(1.2 mi)
521.1 km
(323.8 mi)
TO   E64
   Rest area "Settimo Torinese" 3.0 km
(1.9 mi)
520.1 km
(323.2 mi)
TO   E64
  Settimo Torinese 4.0 km
(2.5 mi)
519.1 km
(322.6 mi)
TO   E64
  Brandizzo
Leinì, Volpiano
10.0 km
(6.2 mi)
513.1 km
(318.8 mi)
TO   E64
  Chivasso ovest 14.0 km
(8.7 mi)
509.1 km
(316.3 mi)
TO   E64
  Chivasso centro
Caluso, Ivrea
16.0 km
(9.9 mi)
507.1 km
(315.1 mi)
TO   E64
  Chivasso est
  Raccordo Chivasso est
19.0 km
(11.8 mi)
504.1 km
(313.2 mi)
TO   E64
  Rondissone 24.0 km
(14.9 mi)
499.1 km
(310.1 mi)
TO   E64
  Toll gate Rondissone 24.3 km
(15.1 mi)
498.8 km
(309.9 mi)
TO   E64
   Rest area "San Rocco"[a] 24.4 km
(15.2 mi)
-- VC   E64
   Rest area "Cigliano"[b] -- 491.2 km
(305.2 mi)
VC   E64
  Cigliano 32.9 km
(20.4 mi)
490.2 km
(304.6 mi)
VC   E64
  Borgo d'Ale 36.8 km
(22.9 mi)
486.3 km
(302.2 mi)
VC   E64
      Diramazione Ivrea - Santhià
    Diramazione Stroppiana-Santhià
    Aosta
    Aosta
    Genova
43.8 km
(27.2 mi)
479.3 km
(297.8 mi)
VC   E64
  Santhià
  Biella
45.2 km
(28.1 mi)
477.9 km
(297.0 mi)
VC   E64
  Carisio
  Biella
54.4 km
(33.8 mi)
468.7 km
(291.2 mi)
VC   E64
  Balocco 60.0 km
(37.3 mi)
463.1 km
(287.8 mi)
VC   E64
   Rest area "Villarboit" 64.2 km
(39.9 mi)
458.9 km
(285.1 mi)
VC   E64
  Greggio 67.5 km
(41.9 mi)
455.6 km
(283.1 mi)
VC   E64
    Genova - Gravellona T. 72.4 km
(45.0 mi)
450.7 km
(280.1 mi)
NO   E64
  Biandrate-Vicolungo 73.6 km
(45.7 mi)
449.5 km
(279.3 mi)
NO   E64
  Novara Ovest 82.9 km
(51.5 mi)
440.2 km
(273.5 mi)
NO   E64
   Rest area "Novara" 88.7 km
(55.1 mi)
434.4 km
(269.9 mi)
NO   E64
  Novara Est 90.5 km
(56.2 mi)
432.6 km
(268.8 mi)
NO   E64
  Marcallo-Mesero
    Strada statale 336 dell'Aeroporto della Malpensa
  Milan Malpensa Airport
104.5 km
(64.9 mi)
418.6 km
(260.1 mi)
MI   E64
  Arluno 110.9 km
(68.9 mi)
412.2 km
(256.1 mi)
MI   E64
  Rho 118.4 km
(73.6 mi)
404.7 km
(251.5 mi)
MI   E64
  Toll gate Milano Ghisolfa 120.8 km
(75.1 mi)
402.3 km
(250.0 mi)
MI   E64
      Tangenziale Ovest di Milano
    Bologna
    Genova
    Varese, Sesto C.
  Milan Malpensa Airport
    Como, Chiasso
120.9 km
(75.1 mi)
402.2 km
(249.9 mi)
MI   E64
   Rest area "Pero" 122.7 km
(76.2 mi)
400.4 km
(248.8 mi)
MI   E64
  Pero
122.9 km
(76.4 mi)
400.2 km
(248.7 mi)
MI   E64
    Varese
    Milano V.le Certosa
  Fiera Milano
125.0 km
(77.7 mi)
398.1 km
(247.4 mi)
MI   E64
  Cormano
Bresso - Milano Niguarda
    Superstrada Milano-Meda-Cermenate
129.5 km
(80.5 mi)
393.6 km
(244.6 mi)
MI   E64
   Rest area "Lambro" 133.6 km
(83.0 mi)
389.5 km
(242.0 mi)
MI   E64
  Cinisello Balsamo-Sesto San Giovanni
    Superstrada Milano-Lecco-Morbegno
Milano V.le Zara
136.1 km
(84.6 mi)
387.0 km
(240.5 mi)
MI   E64
  Toll gate Milano est 138.0 km
(85.7 mi)
385.1 km
(239.3 mi)
MB   E64
    Tangenziale Nord Milano
  Monza
138.0 km
(85.7 mi)
385.1 km
(239.3 mi)
MB   E64
    Tangenziale Est Milano
  Milan Linate Airport
144.5 km
(89.8 mi)
378.6 km
(235.3 mi)
MB   E64
  Agrate Brianza 145.5 km
(90.4 mi)
377.6 km
(234.6 mi)
MB   E64
    Tangenziale est esterna di Milano
  Milan Linate Airport
146.3 km
(90.9 mi)
376.8 km
(234.1 mi)
MB   E64
   Rest area "Brianza" 148.4 km
(92.2 mi)
374.7 km
(232.8 mi)
MB   E64
  Cavenago-Cambiago 149.7 km
(93.0 mi)
373.4 km
(232.0 mi)
MB   E64
  Trezzo sull'Adda 156.8 km
(97.4 mi)
366.3 km
(227.6 mi)
MI   E64
  Capriate 160.3 km
(99.6 mi)
362.8 km
(225.4 mi)
BG   E64
   Rest area "Brembo" 165.7 km
(103.0 mi)
357.4 km
(222.1 mi)
BG   E64
  Dalmine 165.4 km
(102.8 mi)
357.7 km
(222.3 mi)
BG   E64
  Bergamo
  Milan Bergamo Airport
172.1 km
(106.9 mi)
351.0 km
(218.1 mi)
BG   E64
  Seriate 178.7 km
(111.0 mi)
344.4 km
(214.0 mi)
BG   E64
  Grumello-Telgate 187.3 km
(116.4 mi)
335.8 km
(208.7 mi)
BG   E64
  Ponte Oglio 190.6 km
(118.4 mi)
332.5 km
(206.6 mi)
BG   E64
  Palazzolo 192.8 km
(119.8 mi)
330.3 km
(205.2 mi)
BS   E64
   Rest area "Sebino" 197.5 km
(122.7 mi)
325.6 km
(202.3 mi)
BS   E64
  Rovato 201.0 km
(124.9 mi)
322.1 km
(200.1 mi)
BS   E64
  Ospitaletto 206.0 km
(128.0 mi)
317.1 km
(197.0 mi)
BS   E64
    BreBeMi[c] 210.0 km
(130.5 mi)
313.1 km
(194.6 mi)
BS   E64
   Rest area "Val Trompia" 213.7 km
(132.8 mi)
309.4 km
(192.3 mi)
BS   E64
  Brescia Ovest
  Fiera di Brescia
214.9 km
(133.5 mi)
308.2 km
(191.5 mi)
BS   E64
    Piacenza
  Brescia Centro
  Brescia Sud

  Poliambulanza
222.3 km
(138.1 mi)
300.8 km
(186.9 mi)
BS   E64
   Rest area "S. Giacomo" 226.5 km
(140.7 mi)
296.6 km
(184.3 mi)
BS   E70
  Brescia Est
  Brescia Montichiari Airport
228.8 km
(142.2 mi)
294.3 km
(182.9 mi)
BS   E70
  Desenzano 243.9 km
(151.6 mi)
279.2 km
(173.5 mi)
BS   E70
   Rest area "Monte Alto" 244.6 km
(152.0 mi)
278.5 km
(173.1 mi)
BS   E70
  Sirmione 251.3 km
(156.2 mi)
271.8 km
(168.9 mi)
BS   E70
  Peschiera 258.8 km
(160.8 mi)
264.3 km
(164.2 mi)
VR   E70
  Castelnuovo del Garda (under construction)
  Strada Statale 450 di Affi
263.1 km
(163.5 mi)
260.0 km
(161.6 mi)
VR   E70
  Sommacampagna
  Verona Villafranca Airport
270.4 km
(168.0 mi)
252.7 km
(157.0 mi)
VR   E70
   Rest area "Monte Baldo" 271.7 km
(168.8 mi)
251.4 km
(156.2 mi)
VR   E70
    Autostrada A22
  Verona nord
  Verona Villafranca Airport
275.3 km
(171.1 mi)
247.8 km
(154.0 mi)
VR   E70
  Verona Sud 279.8 km
(173.9 mi)
243.3 km
(151.2 mi)
VR   E70
  Verona Est
    Transpolesana: Legnago - Rovigo
289.7 km
(180.0 mi)
233.4 km
(145.0 mi)
VR   E70
   Rest area "Scaligera" 300.7 km
(186.8 mi)
222.4 km
(138.2 mi)
VR   E70
  Soave 302.4 km
(187.9 mi)
220.7 km
(137.1 mi)
VR   E70
  Montebello 311.4 km
(193.5 mi)
211.7 km
(131.5 mi)
VI   E70
  Montecchio 320.6 km
(199.2 mi)
202.5 km
(125.8 mi)
VI   E70
   Rest area "Villa Morosini ovest" 324.8 km
(201.8 mi)
198.3 km
(123.2 mi)
VI   E70
  Vicenza Ovest 326.6 km
(202.9 mi)
196.5 km
(122.1 mi)
VI   E70
  Vicenza Est 334.2 km
(207.7 mi)
188.9 km
(117.4 mi)
VI   E70
    Piovene Rocchette
  Vicenza nord
335.6 km
(208.5 mi)
187.5 km
(116.5 mi)
VI   E70
   Rest area "Tesina est" 336.0 km
(208.8 mi)
187.1 km
(116.3 mi)
VI   E70
  Grisignano 343.3 km
(213.3 mi)
179.8 km
(111.7 mi)
VI   E70
   Rest area "Limenella" 354.5 km
(220.3 mi)
168.6 km
(104.8 mi)
PD   E70
  Padova Ovest
Tangenziale di Padova
356.2 km
(221.3 mi)
166.9 km
(103.7 mi)
PD   E70
  Padova Est
Tangenziale di Padova
363.3 km
(225.7 mi)
159.8 km
(99.3 mi)
PD   E70
    Bologna - Padova
  Padova   industrial area
364.2 km
(226.3 mi)
158.9 km
(98.7 mi)
PD   E70
   Rest area "Arino" 372.5 km
(231.5 mi)
150.6 km
(93.6 mi)
VE   E70
    Tangenziale di Venezia - Mestre (west) 374.6 km
(232.8 mi)
148.5 km
(92.3 mi)
VE   E70
  Spinea 380.9 km
(236.7 mi)
142.2 km
(88.4 mi)
VE   E70
  Martellago - Scorzè 389.4 km
(242.0 mi)
133.7 km
(83.1 mi)
VE   E70
  Preganziol 400.0 km
(248.5 mi)
123.1 km
(76.5 mi)
TV   E70
    Belluno
  Venezia Tessera Airport
  Tangenziale di Venezia (north)
402.0 km
(249.8 mi)
121.1 km
(75.2 mi)
TV   E70
      Tangenziale di Venezia - Quarto d'Altino (east)
  Venezia Tessera Airport
407.0 km
(252.9 mi)
116.1 km
(72.1 mi)
VE   E70
  Meolo-Roncade 416.0 km
(258.5 mi)
107.1 km
(66.5 mi)
VE-TV   E55
  E70
  San Donà di Piave-Noventa 424.0 km
(263.5 mi)
99.1 km
(61.6 mi)
VE   E55
  E70
   Rest area "Calstorta" 431.0 km
(267.8 mi)
92.1 km
(57.2 mi)
VE   E70
  Cessalto 432.0 km
(268.4 mi)
91.1 km
(56.6 mi)
TV   E55
  E70
  Santo Stino di Livenza 439.0 km
(272.8 mi)
84.1 km
(52.3 mi)
VE   E55
  E70
    Conegliano 452.0 km
(280.9 mi)
71.1 km
(44.2 mi)
VE   E55
  E70
   Rest area "Fratta" 456.0 km
(283.3 mi)
67.1 km
(41.7 mi)
VE   E55
  E70
  Latisana
  Bretella Latisana
467.0 km
(290.2 mi)
56.1 km
(34.9 mi)
UD   E55
  E70
  San Giorgio di Nogaro-Porpetto 483.0 km
(300.1 mi)
40.1 km
(24.9 mi)
UD   E55
  E70
   Rest area "Gonars" 487.0 km
(302.6 mi)
36.1 km
(22.4 mi)
VE   E70
      Tarvisio
    Austria–Italy border - Villach - Vienna
490.0 km
(304.5 mi)
33.1 km
(20.6 mi)
UD   E70
  Palmanova 491.0 km
(305.1 mi)
32.1 km
(19.9 mi)
UD   E70
    Villesse - Gorizia
    Italy–Slovenia border - Nova Gorica
501.0 km
(311.3 mi)
22.1 km
(13.7 mi)
GO   E70
  Redipuglia - Monfalcone Ovest
  di Ronchi dei Legionari
  Trieste Ronchi dei Legionari Airport
506.0 km
(314.4 mi)
17.1 km
(10.6 mi)
GO   E70
  Toll gate Lisert 515.0 km
(320.0 mi)
8.1 km
(5.0 mi)
GO   E70
  Monfalcone Est 515.0 km
(320.0 mi)
8.1 km
(5.0 mi)
GO   E70
   Rest area "Duino" 519.0 km
(322.5 mi)
4.1 km
(2.5 mi)
TS   E70
  Duino 520.0 km
(323.1 mi)
3.1 km
(1.9 mi)
TS   E70
  Sistiana
  Trieste -     Italy–Slovenia border - Rabuiese - Istria
523.0 km
(325.0 mi)
0.1 km
(0.062 mi)
TS   E70
    Spur Sistiana - Padriciano     Italy–Slovenia border
  Ljubljana
523.1 km
(325.0 mi)
0.0 km
(0 mi)
TS   E70

A4/A5 Ivrea-Santhià connection

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A4/A5 Ivrea-Santhià connection: Avenco pass tunnel
  AUTOSTRADA A4/A5
Ivrea-Santhià connection
Exit ↓km↓ ↑km↑ Province European route
      Torino - Aosta 0.0 km
(0 mi)
23.6 km
(14.7 mi)
TO   E25
  Albiano
ex   del Lago di Viverone - Ivrea
7.9 km
(4.9 mi)
15.7 km
(9.8 mi)
TO   E25
  Rest area "Viverone" 13.0 km
(8.1 mi)
10.6 km
(6.6 mi)
TO   E25
      Torino - Milano
  Santhià
23.5 km
(14.6 mi)
0.1 km
(0.062 mi)
VC   E25
      Diramazione Stroppiana - Santhià
    Genova - Gravellona Toce
23.6 km
(14.7 mi)
0.0 km
(0 mi)
VC   E25

A4/A26 Stroppiana-Santhià connection

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A4/A26 Stroppiana-Santhià connection
  AUTOSTRADA A4/A26
A4/A26 Stroppiana-Santhià connection
Exit ↓km↓ ↑km↑ Province European route
    Genova - Gravellona Toce 0.0 km
(0 mi)
30.7 km
(19.1 mi)
VC   E25
   Rest area "Le Risaie" [d] - 29.3 km
(18.2 mi)
  Vercelli Ovest 8.0 km
(5.0 mi)
22.7 km
(14.1 mi)
   Rest area "Cavour"[e] 29.0 km
(18.0 mi)
-
      Torino - Milano
Santhià
30.6 km
(19.0 mi)
0.1 km
(0.062 mi)
    A4/5 Ivrea
  Torino - Aosta
30.7 km
(19.1 mi)
0.0 km
(0 mi)

Chivasso connection

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  RACCORDO EST DI CHIVASSO
Chivasso connection
Exit ↓km↓ ↑km↑ Province
     Torino - Milano
Exit Chivasso Est
0.0 km
(0 mi)
5.0 km
(3.1 mi)
TO
  Rondissone Ovest
  Padana Superiore
1.6 km
(0.99 mi)
3.4 km
(2.1 mi)
  Verolengo
  del Monferrato
5.0 km
(3.1 mi)
0.0 km
(0 mi)

Latisana connection

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  BRETELLA DI LATISANA
Latisana connection
Exit ↓km↓ ↑km↑ Province
    
Exit Latisana
0.0 km
(0 mi)
2.6 km
(1.6 mi)
UD
    Roundabout SP75 1.6 km
(0.99 mi)
1.0 km
(0.62 mi)
    della Venezia Giulia 2.6 km
(1.6 mi)
0.0 km
(0 mi)

See also

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Other Italian roads

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Notes

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  1. ^ Only in the direction of Trieste
  2. ^ Only in the direction of Turin
  3. ^ Only in the direction of Milan
  4. ^ Only in the direction of Alessandria-Gravellona Toce
  5. ^ Only in the direction of Genoa.

References

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  1. ^ Merzagora, Eugenio. "Motorways in Italy (numbering)". Archived from the original on 31 March 2016. Retrieved 5 August 2024.
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