What's the name of this traffic-control structure found at some checkpoints?

What's the name of this traffic-control structure found at some checkpoints? - Old lock hanging on metal fence

At some security checkpoints around New York there is a kind of barrier whose name I'm interested in learning. I've attached two images.

The barrier is a sheet of metal raised a foot or two on one side. If a vehicle is approved to enter, the sheet of metal can be lowered to be flush with the street. (Prior research: I've tried extensive search-engine searches with text and these images. I'm not sure if there's a better SE forum to post on, but Travel seems the closest.)

What is this called?

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Pictures about "What's the name of this traffic-control structure found at some checkpoints?"

What's the name of this traffic-control structure found at some checkpoints? - Worm's Eye of White and Black Inside Basket
What's the name of this traffic-control structure found at some checkpoints? - Aerial Photography of Cars on Road Intersection
What's the name of this traffic-control structure found at some checkpoints? - Hurdle painted in white black and red colors placed on empty rubber running track in soft focus



What are the types of checkpoint?

Different Types of Checkpoint
  • Automatic Checkpoint. Every time each database without a user-defined recovery time, the SQL server database engine generates automatically checkpoints. ...
  • Indirect Checkpoints. ...
  • Internal Checkpoints. ...
  • Manual Checkpoints.


What are the two types of checkpoint?

There are two types of checkpoint: mobile and fixed.

What are customs checkpoints?

customs checkpoint means a port, place or airport used for the import of goods, the export of goods, the transit, the transshipment or other customs affairs, for the purposes of customs clearance; Sample 1.

What are checkpoints in Texas?

At these checkpoints, every motorist is stopped and asked about their immigration status. Agents do not need any suspicion to stop you and ask you questions at a lawful checkpoint, but their questions should be brief and related to verifying immigration status. They can also visually inspect your vehicle.



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Images: Chris F, Pixabay, Joey Lu, Andrea Piacquadio