Why do they deliberately obscure vision at roundabouts?

[dai1983]

Approaching the M3 near Hook boils my urine for this reason!!!! Stupid idea in my opinion.

[dai1983]

Approaching the M3 near Hook boils my urine for this reason!!!! Stupid idea in my opinion.

[MissChief]

Having been in a car that got rear-ended at a roundabout because 'I wasn't looking in front of me, I was looking at the traffic on the roundabout', I don't mind these at all. As they are relatively few and far between I would suggest they're only installed where deemed necessary.

[TurboHatchback]

njd27 said:

There is some back story to the barriers in Cadnam. Motorcyclists had noticed that the two roundabouts (the one in your link and the motorway roundabout connected by a 200yd stretch of dual carriageway) contained a very entertaining sequence of bend. It's on the route down to the Poole Quay bike meet, and you can imagine that if every Tuesday night you get 5/10 bikers doing laps of the two roundabouts, the local residents would start complaining.

So they ended up putting in those barriers and cut the speed limit from 70 to 50mph.

You can get a gist of it if you search for Cadnam GP Circuit

Edited by njd27 on Wednesday 23 April 11:44

Ah, I see. It seems that most people at the time when they were put up thought the same as me (i.e. that it was a stupid idea). Obviously bikers doing laps is not ideal from a safety perspective but IMHO these make it more dangerous not less. The 50mph limit is ok as the section is so short but the barriers are .