...that Haxo, a ghost station on the Paris Métro, has never had a regular in-service train call at the station and no access to street level was ever constructed?
AD60 Garratt locomotive 6012 tops the grade at Cowan
...that in Britain, where steam hauled trains generally have vacuum operated brakes, it was quite common for turntables to be operated by vacuum powered motors worked from the locomotive's vacuum ejector or pump via a flexible hose or pipe?
A diesel locomotive in AW Bremen, 1984
...that an Ausbesserungswerk is a railway facility in German-speaking countries, the primary function of which is the repair (and formerly also the construction) of railway vehicles or their components?
Canted curve on the Nuremberg–Ingolstadt line in Germany
...that cant, the difference in elevation of rails around a curve also known as superelevation, helps steer a train around a curve, keeping the wheel flanges from touching the rails and minimizing friction and wear?
5808 with a westbound goods train passing below the Lithgow Zig Zag
...that the New South Wales Government Railways' D58 class4-8-2, intended to be an improved version of the D57 class, had smaller diameter cylinders which demanded a later cut-off and used more steam, thus making the locomotives uneconomical in the use of coal and water when compared with the D57?
...that the 1949 Matsukawa derailment was reported to have occurred as the result of sabotage, which the government in Japan blamed on the Japanese Communist Party and the Japan National Railway Union?
The retarders grip the sides of the wheels on passing cars to slow them down
...that retarders, a series of stationary brakes surrounding a short section of each rail on the track that grip and slow the cars' wheels through friction as they roll through them, are used in classification yards to reduce the speed of freight cars as they are sorted into trains?
Gauntlet track for a tram line in a narrow alley at Malá Strana, Prague
...that gauntlet track is railway tracks that converge onto a single roadbed and are interlaced to pass through a narrow passage such as a cutting, bridge, or tunnel, which eliminates the complexities of a switching system since both tracks remain discrete?
A semaphore signal fitted with a diamond sign denoting exemption from Rule 55
...that Rule 55, a problematic operating rule adopted by railway companies in the British Isles in the late 19th century, required that if a train was brought to a stand at a signal in rain, snow or fog, the fireman, guard or any shunter riding on the train must immediately make his way back to the signal box to ensure that the signalman was aware of the presence of the stopped train?