Note that, in spite of the Civilopedia entry below, railroads do not in fact increase trade on a tile.
Railroads revolutionized transportation by providing a relatively cheap and fast method of moving people, raw materials, finished goods, and troops over great distances. Not only did they support and encourage industrial growth by dramatically reducing transport time and costs, they also spurred technological research. Railroads were among the first great industrial corporations.
Railroads can be built by Settlers and Engineers after the discovery of the Railroad. They are constructed by moving onto terrain containing a road, and pressing the "R" key, or by selecting the "Build Railroad" command from the Orders menu. Units moving along a railroad expend no movement points. Railroads increase Shield and Trade production by 50 percent (rounded down).
|Civilization II Tile Improvements|