Regulatory Road Restriction Signs

[Barquentine]

Are there any road planners/road sign experts out there? A local road has had restrictions introduced to limit use to buses, cycles, taxis between 3-6pm Mon-Fri. The signs appear to conform to the requirements in the Traffic Signs Regulations & General Directions 2016 S.I. but my question is how much notice should a driver get? These are placed on the kerb (near side) and a central island (off-side) immediately exiting a roundabout. No prior warnings on the approach road are in place. Thanks.

[davebro]

We have a (magic!) roundabout with a buses & taxis only cut through. There is no prior warning.

[barry1010]

This might be useful - part 4.3
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/771873/traffic-signs-manual-chapter-1.pdf

[davebro]

Thanks Danny - that's pretty clear. In the case I mentioned it would be difficult to place a meaningful sign on the approach to the roundabout.

[davebro]

sorry Barry - similar avatars!

[barry1010]

I've been caught like that in the past - no entry sign invisible until I'd committed to the turn. Thankfully I didn't get any penalty but I wonder if it has caused any accidents with drivers stopping abruptly or trying to U-turn.

[Buenchico]

Your answer might be hidden somewhere within the eight chapters of the Traffic Signs Manual (although I couldn't find it myself with just a quick look through):
https://www.gov.uk/government/publications/traffic-signs-manual