A shuttle train is a train that runs back and forth between two points, especially if it offers a frequent service over a short route. Shuttle trains are used in various ways, in various parts of the world. They commonly operate as a fixed consist, and run non-stop between their termini. They can be used to carry passengers, freight, or both.
Aichi Loop Line shuttle train at Mikawa-Toyota Station, Toyota, Aichi Prefecture, Japan
S (New York City Subway service)
Three services in the New York City Subway are designated as a dark gray S (shuttle) service. These services operate as full-time or almost full-time shuttles. In addition, three services run as shuttles during late night hours but retain their regular service designations.
The "2007 Holiday Shopper's Special", which ran on December Sundays, is a train of museum subway cars. This particular car is displaying the (former) S Special on its rollsign at the 23rd Street (Sixth Avenue) station.
Image: NYCS 42nd Street Shuttle at Grand Central October 2023 2
Image: R179 Shuttle Train at Broad Channel (cropped)
Image: NYCS R68 Franklin Shuttle