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Worn tires or tires with flats are reprofiled on a wheel lathe if there is sufficient thickness of material remaining. A damaged railway tire was the cause of the Eschede train disaster, when a tire failed on a high-speed Intercity Express train, causing it to derail and killing 101 passengers.
A severe flat spot on a rail wheel. A flat spot, or wheel flat, also called spalling or shelling, is a fault in railroad wheel shape. A flat spot occurs when a rail vehicle's wheelset stops rotating while the train is still in motion, causing part of the wheel to ablate against the hard steel of the rails.
Furthermore, they were subject to flat tyres, unlike cars with steel wheels. Eventually, the Michelines gave way to rubber-tyred metros , pioneered by the RATP (Paris transit authority) which introduced them for their superior acceleration characteristics, in order to increase the capacity of their subway lines.
The small rail wheels fitted to road–rail vehicles allow them to be stowed away when the vehicle is in road-going mode. Wheels used for road–rail vehicles are normally smaller than those found on other types of rolling stock, such as locomotives or carriages, because the wheel has to be stowed clear of the ground when the vehicle is in road-going mode.
The vehicles have wheels with rubber tires that run on a roll way inside guide bars for traction. Traditional, flanged steel wheels running on rail tracks provide guidance through switches and act as backup if tyres fail. Most rubber-tyred trains are purpose-built and designed for the system on which they operate.
On the morning of August 27, 1941, the fiftieth anniversary of the accident, the rider of a car that had a flat tire was waiting for help. She thought she had heard and seen a train crash off the bridge, shattering its old-fashioned wooden passenger cars. The woman could hear the screaming and moaning of wounded.
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This article contains a list of terms, jargon, and slang used to varying degrees by railfans and railroad employees in the United States and Canada.Although not exhaustive, many of the entries in this list appear from time to time in specialist, rail-related publications.