ARST S.p.A., known also as Azienda Regionale Sarda Trasporti, is a public company responsible for public transportation in

Sardinia Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...

, in Italy, owned by the autonomous regional administration of Sardinia. The company is headquartered in

Cagliari Cagliari (, , ; ; ; Latin: ''Caralis'') is an Comune, Italian municipality and the capital and largest city of the island of Sardinia, an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy. It has about 146,62 ...

and has 2,166 employees. It operates a large part of the intercity bus lines on the island (it had 175 bus lines and a network of in 2007), urban bus lines in six municipalities (

Alghero Alghero (; ; ; ) is a city of about 45,000 inhabitants in the Italian province of Sassari in the north west of the island of Sardinia, next to the Mediterranean Sea. The city's name comes from ''Aleguerium'', which is a mediaeval Latin word m ...

, Carbonia, Iglesias,

Macomer Macomer () is a town and ''comune'' of Sardinia (Italy) in the province of Nuoro. It is situated on the southern ascent to the central plateau (the Campeda) of this part of Sardinia, at the junction of narrow-gauge lines branching from the main ra ...

Guspini Guspini (Gùspini in Sardinian) is a town and ''comune'' of about 12,000 inhabitants in west Sardinia (Italy), in the province of South Sardinia. It is from the capital Cagliari and from the railway station at San Gavino Monreale. Close to Gus ...

and

Oristano Oristano (; ) is an Italian city and (municipality), the capital of the Province of Oristano in the central-western part of the island of Sardinia. It is located on the northern part of the Campidano plain. It was established as the provincial ...

), commuter and urban rail transport on of narrow gauge railways and on two metrotramways operating in

Sassari Sassari ( ; ; ; ) is an Italian city and the second-largest of Sardinia in terms of population with 120,497 inhabitants as of 2025, and a functional urban area of about 260,000 inhabitants. One of the oldest cities on the island, it contains ...

and

. ARST operates also of narrow railways, based on 4 lines, used as a rail tourism service, called

Trenino Verde ("''the Little Green Train of Sardinia''" in English) is a rail tourism service operated by ARST in the island of Sardinia, Italy. History Characterized by lengthy travel times and winding tracks in attractive landscapes, the narrow gauge r ...

. File:MetroCAPoliclinico.jpg, Cagliari Metrotramway File:Sasstram.jpg, Sassari Metrotramway File:ARST Mercedes-Benz Citaro (9907).jpg,

Intercity Bus An intercity bus service (North American English) or intercity coach service (British English and Commonwealth English), also called a long-distance, express, over-the-road, commercial, long-haul, or highway bus or coach service, is a public t ...

File:Bus ARST.jpg,

File:Bus de l'ARST à Aggius (Sardaigne) en 2015.jpg,

Aggius Aggius (Gallurese: ''Agghju'', Sardinian: ''Azos'') is a ''comune'' (municipality) in the Province of Sassari in the Italian region Sardinia, located about north of Cagliari and about west of Olbia. Aggius borders the following municipalities ...

File:Un bus ARST à Alghero en 2015.jpg, Urban Bus in Alghero File:Mercedes Benz VDL MidCity ARST Carbonia.jpg, Urban minibuses in Carbonia File:Stadler ARST FdS Sassari Alghero 2.jpg, Ades Train in

File:Automotrice ARST ADeS 01–04 (01).jpg, Olmedo's station

Notes and references

{{Reflist Transport companies of Italy Transport in Sardinia