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Railway Technical Website
www.railway-technical.comRailway Technical Website Background Paper No. 2 Track Basics by Piers Connor1 Introduction Track is the base upon which the railway runs. To give a train a good ride, the track alignment must be set to within a millimeter of the design. Track design and construction is part of a complex and multi-disciplinary engineering science involving
Railway Technical Website
www.railway-technical.com3Also known as “points” in the UK and “switches” in the US. Figure 5: Schematic of UK 4-aspect signalling system. The occupied block is protected by a red signal. The signal protecting the block to the rear, shows a single yellow, the next a double yellow and the one three blocks to the rear, a green. Other railways have equivalent systems.