Italy (Sardegna) - Lines with Obscure or Sparse passenger services
This list is based on the timetable in force from 15 December 2019 until 13 June 2020. Table numbers quoted here are from In Treno Tutt'Italia, the official Trenitalia timetable. Standard abbreviations are explained in General Information. Map references relate to the Schweers+Wall Atlante ferroviario d’Italia e Slovenia.
Two useful symbols exist which show the booked route for trains not calling at a station: in the middle of the train column, a vertical bar "|" means that the train passes through the station without stopping, whereas a dot "." means that the train does not pass through that station but instead takes a different route.
Ozieri-Chilivani avoiding line: Torralba (km 211.5) - Ardara (km 1.7)
 (114D1) IT18/171
This south to west curve is used by trains between the Cagliari and Sassari lines if not calling at Ozieri-Chilivani.
|SuX||RV3949||06:30 Sassari – Cagliari|
|SuX||RV3952||Cagliari - 12:27 Macomer - Sassari|
|SuX||RV3958||Cagliari – 20:24 Macomer – Sassari|
Ferrovie della Sardegna obscure services
Limited services, marketed as Il Trenino Verde della Sardegna, operate over the following Ferrovie della Sardegna lines during the summer. There are also occasional public excursions at other times. Details are shown on website www.treninoverde.com, but it should be noted that these may vary in practice, particularly if there are insufficient advance bookings. It is also possible to charter trains.
Proposals to close all lines which do not have year-round passenger traffic have been dropped in favour of plans to rehabilitate them. Traffic was suspended from 24 June 2016 between Laconi and Sorgono and between Seui and Arbatax, because of the poor condition of some bridges. The lines to Sorgono and between Gairo and Arbatax re-opened for the 2017 season, but Seui to Gairo remained closed.
Lines over which trains are advertised to run during summer 2018 are:
Mandas - Laconi (Sunday)
Mandas - Sadali (Monday and Tuesday)
Arbatax - Gairo (Thursday to Sunday)
Tresnuraghes - Bosa Marina (Saturday)
Tempio - Palau (daily except Saturday)
As a consequence of this, there are no trains on the following lines:
Sadali - Gairo
Laconi - Sorgono
Macomer - Tresnuraghes
Sassari - Tempio