What do you call

[chazza]

the poles that you can erect at the end of the driveway which can either lie flat to the ground or can be locked upright?

Thanks

[redcrx]

i googled driveway post and got these http://www.google.co.uk/products?q=post+drivew ay&hl=en&show=dd

[scotgal]

Fold down parking posts?

[pink-kittens]

Bollard?

They look like the ones red posted the link for :)

[JonnyBoy12]

Rising bollards, perhaps?

[taichiperson]

If you are thinking of buying these. get the best you can afford, as the cheaper ones are not very sturdy. My employer bought three for the yard of one of his propeties, and they did not last for long.