
I wonder if it also works on horse-drawn carriages?
( , Fri 29 Apr 2011, 9:02, Reply)

If you are wanting to stop a massive laden lorry from entering a carriageway the wrong way, potentially killing tens of people, the "collateral damage" of the driver in the crashing vehicle is an "acceptable loss". But if you are trying to stop a speeding vehicle from escaping the police, then yes these can be a bit too violent... but these are barriers to prevent things getting through.
( , Fri 29 Apr 2011, 12:28, Reply)

( , Fri 29 Apr 2011, 23:25, Reply)

Apparently a dimwit who accidentally enters a dual carriageway the wrong way does, yet a criminal who is attempting to flee the police doesn't. Both risk the lives of other innocent motorists/pedestrians, but the criminal's life seems to be more precious to you.
( , Sun 1 May 2011, 10:33, Reply)