spacing braking
1Chairlift — For the musical group, see Chairlift (band). A stairlift is sometimes called a chairlift . Hunter Mountain chairlift …
2Bicycle brake — Animation of a single pivot side pull calliper brake for the rear wheel of a steel framed road bike. A bicycle brake is used to slow down or stop a bicycle. There have been various types of brake used throughout history, and several are still in… …
3cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
4Bicycle wheel — For the Marcel Duchamp installation, see Bicycle Wheel. The front wheel from a racing bicycle made using a Mavic rim …
5Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… …
6Mountain bike trials — Not to be confused with individual time trial races, which are an element of road bicycle racing. Four riders practicing urban bike trial. Mountain bike trials, also known as observed trials, is a discipline of mountain biking in which the rider… …
7PCC streetcar — Three PCCs on the San Francisco Municipal Railway s F line. An example of one double ended streetcar and two former SEPTA cars …
8Personal rapid transit — ation concept that offers on demand, non stop transportation, using small, independent vehicles on a network of specially built guideways. Several different designs have been proposed, and as of 2008, at least one is under… …
9Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …
10railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
