Spur route

A bypass or beltway is not considered a spur route as it typically reconnects with another or the same major road.

For example, Srinagar, the capital of the state of Jammu and Kashmir, is served by the spur route NH 1A.

Some spurs are toll-free motorways (type-A), but most are type-B or type-C roads.

[1] In New Zealand, spurs on state highways are usually designated with an added letter.

Conversely, some State Highways could themselves be considered spurs, notably SH 78, New Zealand's shortest state highway, which links SH 1 in Timaru city center with the Port of Timaru.

In the UK, a spur route carries the same definition, but the numbering rules differ.

In the US, many Interstate Highways have spur routes when they enter a large metropolitan area.

Spur Interstate routes have three-digit numbers with an odd first digit.

A subsidiary route either passing through a city or bypassing it and then reconnecting to a major highway would receive an even first digit, and be considered a loop rather than a spur.