Pennsylvania Station, a gateway to the nation's biggest city, was designed to accommodate about 200, 000 riders a day.

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Westminster, home to Victoria coach station, a gateway for eastern Europeans seeking employment in the UK, has long been campaigning for a change in the way London's population is calculated.

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Plans are to improve access to the bus stop area and railway station and provide an improved gateway to the town centre, said the Welsh government.

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The extension would not interfere with the other major river-crossing project that has been championed since the demise of the ARC project: Amtrak's Gateway project, which would add new tunnels to connect the northeast corridor lines in New Jersey to Penn Station in Manhattan.

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The new station, built by Network Rail, was funded by Transport Scotland, Strathclyde Partnership for Transport, Clyde Gateway, Glasgow City Council and the European Regional Development Fund.

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