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Rail transport - Wikipedia, the free encyclopedia (2807 words) |
 | The rails and perpendicular beams are usually then placed on a foundation made of concrete or compressed earth and gravel in a bed of ballast to prevent the track from buckling (bending out of its original configuration) as the ground settles over time beneath and under the weight of the vehicles passing above. |
| Rail transport is an energy-efficient and capital-intensive means of mechanised land transport. |
| Rail lines that carry little traffic are often built as single track, to be used by trains in both directions; "passing sidings", which consist of short stretches of double track, are provided along the line to allow trains to pass one another, and to travel in opposite directions. |
| POLITICAL - Online Information article about POLITICAL (6043 words) |
| rail connexion with Vera Cruz and Mexico City, the distance between the latter and Salina Cruz being 520 m. |
| The foreign trade has shown a steady increase during the period of industrial development, to which better means of transport have been an invaluable aid. |
| advent of railways, and is still the common means of transport away from the railway lines. |
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