Shetland Islands Council serves the traditional county of Zetland. This includes all of the islands in the archipelago.
All the roads in the authority are non-trunk roads and are maintained by Shetland Islands Council. There are therefore no Transport Scotland Roads in Shetland. As of 2016, Government Statistics say that the council is responsible for 139.8 miles of A roads; 96.2 miles of B roads and 412.4 miles of other roads.
Principal and Classified Numbered Roads
The following is a list of A and B classified roads that are at least partially managed by the authority:
Classified Unnumbered Roads
For their Class III road network, the authority uses "C" prefixes.
Road Numbering in Shetland
Road numbering in Shetland is particularly intriguing, because the main A-roads have several spurs bearing the same number. What is more intriguing is that this system predates 1932 (it can be seen on the 1932 edition of the Ten-Mile Road Map of Great Britain), and is virtually the only example of the use of spur roads prior to 1935, with the only other known example being the A708 near Selkirk.
The relative scarcity of maps of Shetland means that we can only date the introduction of the spur roads to some time between 1922 and 1932.
Bridges, Tunnels, and other Crossings
The islands are connected directly to Aberdeen on the mainland and also via Kirkwall on Orkney. There is also a network of inter-island ferries operated by the Shetland Islands Council.