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The sign on a Queensland whistle post on the old Gibson Island line. In Australia, whistle posts consist of a pole or upright flat-bottom rail with a white or reflective yellow X. In Queensland, A whistle post is mounted on a metal pole or old rail. The board is a flattened white triangle with rounded edges and a black W.
One of two (front and rear) whistles on steam locomotive 60163 Tornado. A train whistle or air whistle (originally referred to as a train trumpet or air trumpet) is an audible signaling device on a steam or gas locomotive, used to warn that the train is approaching, and to communicate with rail workers.
Train horns are sounded where a whistle post (marked with the letter "S" for siffler – "to whistle") is present. If the whistle post is labelled "J" (meaning jour – "day"), the horn is only to be sounded between 07:00 and 20:00. Horns must also be sounded when passing an oncoming train, and shortly before reaching the last car of the train.
Whistle Steam powered whistle, located on top of the boiler and used for signalling (by the number and length of notes) and warning of approach. [2] [5] [6]: 247–248 [3]: 96 Reach rod Rod linking the reversing lever (US: Johnson Bar) or reversing lever or wheel (UK+) in the cab to the valve gear. [2] [5] [3]: 64 Safety valve
The safeworking of trains between stations on the early lines was time interval working, [16] where a train would be allowed to leave a given time after the train before it. With heavier traffic this method became unsafe, with Staff and Ticket working on single lines adopted from 1873, and telegraph block working from 1878 on double lines. [ 19 ]
The project was inspired by Segal's personal experience organizing a whistle-stop campaign tour for Republican U.S. Rep. Mickey Edwards of Oklahoma, for whom he was serving as press secretary in 1984.