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Traffic control devices are used to control, calm, slow or impede the movement of traffic.

Sub types that form this feature class includes:

* Gate - a structure used to regulate movement associated with road or rail

* Impediment - a structure generally associated with a road that controls or varies the normal travel of vehicles or pedestrians.

* Level Crossing - a place where a road and railway intersect at the same level

* Toll Booth - a structure on a road which requires the user to pay a toll or fee to use the road

* Cattle Grid - an open floored structure designed to be crossed by motor vehicles

* Roundabout

The notional midpoint of a roundabout that has been constructed to allow smooth integration of traffic. Generally only roundabouts forming a road centreline and associated with Road Segments classified as 'Roundabout' will be identified under this classification.

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