This month TDSi won a contract to make control equipment, readers and software for 12 subway stations in Beijing, having already supplied kit for metro systems in Shanghai and Tianjin.

ECONOMIST: Manufacturing and exports

Even with the light rail systems, these metro areas are still more friendly to drivers than non-drivers.

FORBES: Restrictive Zoning Is Crippling Silicon Valley's Transit Options

But both MTA railroads maintain comprehensive inspection programs on their tracks, according to the MTA. Every two weeks, workers visually inspect "every inch of track" on both Metro-North and Long Island Rail Road systems for defects, an MTA official said.

WSJ: Metro-North Is Set To Restore Full Service Wednesday

The city needs a debate about whether to favour bus rapid-transit systems, or more expensive but faster and higher-capacity metro lines.

ECONOMIST: Better late than never

Metro a part of this program, and we'll we expect to see that in other transit systems?

WHITEHOUSE: Press Briefing