Her first success: a high-speed bus line in the Bronx, which she says has reduced commute times by 24%.

FORBES: Companies, People, Ideas

Enter the IEEE 1394 architecture and its close kin FireWire, which takes the high-speed digital bus interface up to the wicked fast transfer rate of 400MB per second.

CNN: Peripherals abound in Las Vegas

Despite some of the best roads on the continent and a number of high-profile infrastructure projects, including a high-speed train and a bus service built for the 2010 football World Cup, commuting in Johannesburg is often an arduous task for millions of people.

CNN: The daily grind of commuting in Africa's economic hubs

Nice has fantastic public transportation with high-speed trains, a modern tramway and comprehensive bus routes.

BBC: Nice on a budget

The latter has been winning of late, hence Crossrail, the high-speed connection to the continent, and the upgrades of London's bus and Tube networks.

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The city is getting an extensive new bus system, and the much-touted Gautrain is a high-speed train line that will link Jo' burg and Pretoria.

CNN: Johannesburg's growing pains