Italywas the first country in the world to build motorways reserved for fast traffic and for motor vehicles only.[5][6] The Autostrada dei Laghi ("Lakes Motorway"), the first built in the world, connecting Milan to Lake Como and Lake Maggiore, and now parts of the A8 and A9 motorways, was devised by Piero Puricelli and was inaugurated in 1924.[6]
In North and Central Italy and in the Southern regions of Campania and Apulia, the Autostrade mainly consist of tollways managed by Autostrade per l'Italia, a holding company controlled by Cassa Depositi e Prestiti.[7][8] Other operators include ASTM, ATP, and Autostrade Lombarde in the north-west; Autostrada del Brennero, A4 Holding, Concessioni Autostradali Venete [it], and Autovie Venete [it] in the north-east; Strada dei Parchi [it], SALT, SAT, and Autocisa in the center; and CAS in Sicily.
On Italian motorways the toll applies to almost all motorways not managed by Anas. The collection of motorway tolls, from a tariff point of view, is managed mainly in two ways: either through the "closed motorway system" (km actually travelled) or through the "open motorway system" (flat-rate toll).[9] Given the multiplicity of operators, the toll is only requested when exiting the motorway and not when the motorway operator changes. This system was made possible following Article 14 of Law 531 of 12 August 1982.[10]
The term "autostrada" was used for the first time in an official document from 1922 in which the engineer Piero Puricelli presented the project for the Autostrada dei Laghi ("Lakes Motorway"); with that term, it indicated those roads characterized by a straight path (as far as possible), without obstacles, characterized by a high achievable speed, passable only by motor vehicles (Italian: autoveicoli, hence the name) aimed at the rapid transport of goods and people.[11]
Italy was the first country in the world to build motorways reserved for fast traffic and for motor vehicles only.[5][6] The Autostrada dei Laghi ("Lakes Motorway"), the first built in the world, connecting Milan to Lake Como and Lake Maggiore, and now parts of the Autostrada A8 and Autostrada A9, was devised by Piero Puricelli and was inaugurated in 1924.[6] Piero Puricelli, a civil engineer and entrepreneur, received the first authorization to build a public-utility fast road in 1921, and completed the construction (one lane in each direction) between 1924 and 1926. Piero Puricelli decided to cover the expenses by introducing a toll.[12]
It was a futuristic project, because there were few cars in circulation in Italy at that time. In 1923 there were a total of 53,000 cars circulating on Italian roads (between 1928 and 1929 there was a significant increase, as they went from 142,000 cars in circulation to 173,000 respectively).[13] In 1927 there were 135,900 cars circulating in Italy, corresponding to one vehicle for every 230 inhabitants, while today the ratio is 1 car for every 1.6 inhabitants.[13] The most motorized Italian regions were those of northern Italy and central Italy, with Lombardy at the top of the list with over 38,700 cars in 1923, while at the bottom of the list was Basilicata with 502 cars.[13] Milan was the Italian city in which the most car licenses were issued annually (12,000 in 1928), while the Italian region where the fewest licenses were issued was Sardinia, with only 632 new licenses.[13]
In 1927 the Milan-Bergamo motorway was opened (part of the current Autostrada A4) whose concessionary company was owned by Piero Puricelli. In 1929 the Naples-Pompei motorway (part of the current Autostrada A3) was inaugurated, while in 1931 the Brescia-Bergamo motorway (part of the current Autostrada A4) was inaugurated. In 1932 the Turin-Milan motorway (part of the current Autostrada A4) was opened. In 1933 the Florence-Mare motorway (the current Autostrada A11) and the Padua-Venice motorway (part of the current Autostrada A4) were opened. In 1935, after 3 years of work, the Genoa-Serravalle Scrivia (the current Autostrada A7) was opened.[14] However, the first regulatory definition dates back only to 1933 with Royal Decree no. 1740 of 1933 which defined autostrade as roads reserved for motor vehicles only.[15] In 1939, a year before Italy entered into the World War II, the construction of the Genoa-Savona motorway (the current Autostrada A10) was approved.
Legislative decree 17 April 1948, n. 547 defines motorways "as those communication routes reserved for paid transit of motor vehicles, built and operated by the A.N.A.S. or by private individuals, with or without State contributions".[16] In 1955 the Romita law was promulgated which provided that the motorway network must be present in all regions, work began on the Genoa-Savona and the doubling of single carriageway motorways began with financing law no. 1328/1955. The law of 7 February 1961, n. 59 defines motorways "as those communication routes exclusively reserved for the selected transit, usually for a fee, of motor vehicles and motorbikes, without level crossings or in any case unattended, which are recognized as such by decree of the Minister for Public Works".[17]
In 1961, by Law 24 July 1961 n. 729, the construction of the Adriatica (Autostrada A14), Naples-Canosa (Autostrada A16) and Caserta-Salerno (Autostrada A30) motorways was approved.[18] The same law provided for the construction of motorway junctions. Also in the 1960s, the first automatic pay stations were introduced for paying tolls only with coins.[19] In 1964, the Autostrada A1 Milan-Rome was completed, the first dual carriageway motorway in the world with sections also in the mountains.[20] In 1973 the first motorway in Sicily (the Autostrada A18) was inaugurated. In the 1970s the Grande Raccordo Anulare was classified as a motorway.
In 1975, law 492 was promulgated (in force until the 1990s) which provides for the blocking of motorway construction due to the oil crisis. Since 1981, toll tickets with mechanical perforation have been replaced with tickets with a magnetic stripe.[19] Meanwhile, construction work continues on the motorways already under construction, which had not been affected by law 492. In 1984 the Viacard began to spread, followed in the following years by the Telepass introduced in 1990.
In 1997 work began on the modernization of the Salerno-Reggio Calabria motorway. Completed in 2017, it was then renamed Autostrada A2, to replace the old name which then remained only for the Naples-Salerno section. In 2001, with the doubling of the Autostrada A6, all motorways in Italy are dual carriageways.[21] In 2009 the Mestre bypass was opened (classified as Autostrada A4). Between 2014 and 2015, the Autostrada A35, Autostrada A36, Autostrada A58, Autostrada A59, and Autostrada A60 motorways were opened. In March 2022, the 3-lane section of the Autostrada A1 southbound between Barberino di Mugello and Calenzano was opened, which - although not officially - constitutes the natural continuation of the Variante di Valico; in this stretch the Santa Lucia tunnel is crossed which, at 7.724 kilometres (4.799 mi), is the longest 3-lane tunnel in Europe.[22]
In order for a road to be classified as a motorway, various geometric and construction conditions must be satisfied and these, although very similar in basis (for example the width of the travel lanes must be 3.75 metres (12.3 ft)) are not constant: there are different technical-legal regulations for motorways built in urban or extra-urban areas.[23]
extra-urban or urban road with independent carriageways or separated by an impassable traffic island, each with at least two lanes, possible paved shoulder on the left and emergency lane or paved shoulder on the right, without at-grade intersections and private accesses, equipped with a fence and user assistance systems along the entire route, reserved for the circulation of certain categories of motor vehicles and characterized by specific start and end signs; must be equipped with special rest areas and parking areas, both with accesses equipped with deceleration and acceleration lanes.
In the event that, [...], particular local, environmental, landscape, archaeological and economic conditions do not allow full compliance with these regulations, different design solutions may be adopted provided that they are supported by specific safety analyses and subject to the favourable opinion of the Superior Council of Public Works for motorways, main extra-urban roads and urban thoroughfares, and of the Regional Authority for Public Works for other roads.
In any case, some standards are applied in all newly built motorways. For example, the interchanges must be accessible by ramps (acceleration and deceleration lanes) set aside from the main traffic flow, the carriageways separated by continuous median strips. There may be traffic lights intended only for emergencies, while emergency telephones (SOS columns) must be positioned with a certain frequency in emergency parking spaces. The beginning and end of a motorway must be marked with appropriate signs.
Italian motorways follow a single numbering, even if managed by different concessionaire companies: they are all marked with the letter "A" ("RA" in the case of motorway junctions, with the exception of the Bereguardo-Pavia junction numbered on the signs as Autostrada A53, and "T" for the international Alpine tunnels) followed by a number. Therefore a motorway with the same numbering can be managed by different concessionaire companies (for example the Autostrada A23 is managed for a stretch by Societ Autostrade Alto Adriatico [it] and for the remaining stretch by Autostrade per l'Italia[26][27]).
In road signs the alphanumeric acronym is enclosed (not in the case of the 16 junctions) in a green octagon with a white acronym. The numbers of motorways and tunnels are assigned with a circular from the Minister of Infrastructure and Transport to be published in the Gazzetta Ufficiale.[28]
The current law (Legislative Decree no. 50/2016) provides that the operational risk is transferred from the contracting authorities to the private economic operator. It also includes traffic risk, i.e. the manifestation of demand for motorway services that is lower than market forecasts and to such an extent that it does not guarantee coverage of the investments and costs of managing the works and the service. Public administrations remain responsible for risks on the supply and demand side that can be attributed outside the scope of normal operating conditions due to the existence of unforeseen and unpredictable events.[29]
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