High Street Kensington station on the Inner Circle line in London, the world's first circle line
High Street Kensington station on the Inner Circle line in London, the world's first circle line

A circle route (also circumference, loop, ring route, ring line or orbital line) is a public transport route following a path approximating a circle or at least a closed curve.

Line 10 of the Beijing Subway, the world's longest circular metro line
Line 10 of the Beijing Subway, the world's longest circular metro line

The expression "circle route" may refer in particular to:

Typically, a circle route will connect at several locations with one or more cross-city routes or radial routes offering services in a straighter line into or out of a city or town centre. When a circle route orbits a central business district in a large arc, it will often provide transverse (or lateral) links between suburbs or satellites, either on its own or in combination with other routes. Such connections assist travellers by reducing travel times, avoiding congested centres, and sometimes reducing the number of transfers. Similar benefits may also be achieved by half-circle routes or peripheral cross-city routes.

The oldest circular rapid transit line was London's Inner Circle, today the Circle line of the London Underground, which was completed in 1884, operated by two separate companies.[1] The route chosen forms the general border of what is today central London. This was followed by the Glasgow Subway which opened in 1896, with the system unchanged to this day. In Moscow Metro, a railway from 1908 was reopened as a passenger line in 2016. More recently, line 3 of the Copenhagen Metro opened in 2019, connecting the city centre to the northern and eastern suburbs. In some cities such as Paris, where lines 2 and 6 encircle the city, multiple services together can effectively form a circular route.

Circle routes can also be found in commuter rail networks, namely in Sydney and Melbourne, with Sydney's City Circle being built in 1926 and Melbourne's City Loop in 1978.

See also

References

  1. ^ "How old is the Circle line?". The Telegraph. Telegraph Media Group. 6 October 2016. Retrieved 13 October 2019.