Car turning radius calculation

[uluru]

Originally there were just high kerbs here but these weren't deterrent enough and the bollards were added

[Swervin_Mervin]

MrChips said:

Thanks for the replies all, especially the Paint drawing mr hard-drive

Swervin_Mervin said:

Just looking back at that I don't see how they expect that to work. AFAIK you can't get quadrant kerbs with a 10mm upstand (I could be wrong), and the proposals illustrate the tactiles right up to the quadrant. You'd need a 900mm dropped kerb to link the 10mm upstand kerb at the tactiles with the std height quadrant on the corner. The radius doesn't look large enough to be a radius kerb.

Worryingly I understand all of that now, and yep, the dropped kerbs look too close to the corner to be able to have any effective kerb height, let alone a Trieff kerb.

I've asked the council for clarification. I'd assume they couldn't put a bollard on the kerbs next to these dropped tactile paving sections as it would constitute a trip hazard next to a road. I've also asked for info on who is responsible if their current plans don't work. I've already seen first hand people exiting the phase 1 of the development and turning left the wrong way up the one way street, presumably as it's "only 50yrds" and it may be a tiny bit quicker for them. If people are happy driving the wrong way up a single lane street then I'd rather the junction makes it impossible to turn rather than just awkward.

I feel like such a busybody

I'm glad you understand that because now I've re-read it at home (out of the work environment) and having had a drink I realise that might have come across as total gibberish to anyone that's not a highway engineer!