...that as a result of the Eschede train disaster in Germany on June 3, 1998, the ICE's rubber-isolated wheel design, which was found to be the primary fault of the accident, has since been replaced with conventional solid steel wheels?
...that a balloon loop is a track arrangement that allows a train to reverse direction, and return to where it came from, without having to shunt or even to stop?
...that the EMD SD38-2 shares the same frame as the SD40-2 and SD45-2, which gives the SD38-2 a length of 68 ft 10 in (20.98 m)?
...that in contrast to regular low floortrams, the floor in the interior of Ultra Low Floor tram is low enough to be at the same height as a sidewalk (about 18 cm above the road surface), which makes access to trams particularly easy for passengers in wheelchairs or with perambulators?
...that most bogies (also called trucks) have two axles, but some cars designed for extremely heavy loads have been built with up to five-axle bogies?
...that EWS (English, Welsh and Scottish Railway), the largest British rail freight operating company, was originally created as a subsidiary of Wisconsin Central Ltd in 1996, and was acquired by Canadian National Railway when it bought Wisconsin Central in 2001?
...that railway post office cars in North America were often equipped with a hook that could be used to snatch a sack of outgoing mail hanging on a track-side pole as the train passed it?
...that since a conventional steam locomotive is directly driven, one of the few ways to 'gear' a locomotive for a particular performance goal is to size the driving wheels appropriately; typically larger for passenger train service than for freight service?
...that nearly 5,000 PCC streetcars were built for rail transit systems in the United States and CKD Vagonka built nearly 13,000 for the European market?