John Allen, the outgoing U.S. commander, said the overland exit routes remain largely untested.

WSJ: U.S. Sets Stage for Exodus from Afghanistan

Employees do not have that option, but can take advantage of other exit routes, notably disability or special unemployment schemes for older workers.

ECONOMIST: Snares and delusions | The

Fifty Delaware National Guard troops were called up as emergency management officials urged some coastal residents in that state to evacuate, saying flooding would cut off exit routes.

CNN: March 7, 2013 -- Updated 0004 GMT (0804 HKT)

The returning soldiers spent much of their final seven-month deployment breaking down the camps and gear accumulated over nearly a decade, doing everything from guarding exit routes to discarding old printers.

WSJ: U.S. Troops Fly Home to Joy, Relief

But NATO has told Yugoslav military leaders that they must get their 40, 000 troops out quickly, using designated assembly areas, retreat routes and exit points, to ensure they are not attacked by NATO or the Kosovo Liberation Army.

CNN: Movement seen on various paths to peace in Kosovo

The elimination of all capital controls would, among other things, facilitate the flight from China of corrupt funds, which now must exit the country through cumbersome routes, such as those running through the gaming tables of Macau.

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Given the tremendous investment made by municipalities across the country in road construction, exit ramps, turn lanes, bus routes, and traffic lights, all in support of the mall sales tax revenues, the American Mall cannot become a dinosaur and must evolve.

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In addition, while the Wazirs control some of the most fertile valleys and lucrative trade routes on the border, the Mehsuds are left with largely barren mountains and barely an exit route which they can undisputedly call their own.

BBC: Profile: South Waziristan