LINGUISTICS & CULTURE
|Data:||07/JUN/2008 9:46 AM|
I'll go with "police checkpoint". As in a "blitz", they are looking
for drunken drivers, car documents in order, etc. You are stopped,
checked, and then permitted to continue.
In a "dragnet" (the word is falling out of use), they are looking for a criminal.
A "barrier" is that: a barrier. They are used to control
pedestrian traffric. You often see them around parades, a fire, a
bridge that has been washed away, etc.
A "roadblock" is used to stop traffic, but not for a routine inspection. Trafffic is being prevented from continuing because of an unsafe condition. Or maybe an attempt is being made to containe a suspect.
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