Route map of Nakasendo trunk railway that was actually started work, its alternate Tokaido main line and lines for material transport. Black solid lines represent railway lines that were in operation at the time of groundbreaking of Nakasendo trunk railway, red solid lines represent Nakasendo trunk railway route, aqua dashed line represents planned but not realized Yokkaichi line for material transport, green solid lines represent Taketoyo and Naoetsu lines for material transport, orange solid lines represent Tokaido main line which was constructed after route change.