A speeder is a small railcar used around the world by track inspectors and work crews to move quickly to and from work sites. Although slow compared to a train or car, it is called speeder because it
Speeder in use in Santa Cruz, California
A privately owned Fairmont MT-14 speeder on display at a model railroad show in February 2004
A former Chessie System speeder at the Linden Railroad Museum, Linden, Indiana
Former Queensland Rail (Australia) speeders
A road–rail vehicle or a rail–road vehicle is a dual-mode vehicle that can operate on both rail tracks and roads. They are also known as two-way vehicles, hi–rail, and rail and road vehicles.
Railroad speeder
…speeders were replaced by pickup trucks or sport utility vehicles with additional flanged wheels that could be lowered for travelling on rails, called "road–rail vehicles" or hi-rails for "highway-railroad". Speeders are collected by hobbyists, who refurbish them for excursions organized by the North American Railcar…
Certis Unimog, road–rail vehicle used for vegetation control
Type 95 armoured railroad car So-Ki (九五式装甲軌道車) on tracks, pulling some cars