New railway links, flyovers, an underground railway, elevated walkways and sea transport have been planned.

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Now the houses were smaller, and there was room behind them for dilapidated bits of an old elevated railway.

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The airport, the two main rail stations, an elevated railway and all motorways into the city will be shut.

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Five new platforms, an elevated railway, a new station entrance and a new train depot are among the improvements laid out by Network Rail.

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This tradition goes back at least as far as the Yerkes Observatory in Wisconsin (the best in the world, a century ago), which was paid for by the builder of the Chicago elevated railway.

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He fought an elevated-railway company and he campaigned for savings banks to be allowed to provide life insurance for poor people.

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Runways could be built on elevated platforms over rivers, railway stations or roads.

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