02-11-2019, 02:01 PM
(This post was last modified: 02-11-2019, 02:11 PM by danbrotherston.)
(02-11-2019, 01:02 PM)Canard Wrote: I don't think you can put metal bollards right next to a road, that's not safe. Can anyone think of any examples where this has been implemented like that?
It is definitely permitted, but there are standards that must be met, simple examples are like, a lane beside a bridge abutment, or heck, King St. in DTK, I'm not sure how big this buffer must be, or if it must be marked.
The standards relate to having some buffer between the lane and the barrier, so maybe using flex posts allows them to move them closer to the road.
I suspect the lanes plus the width of the roll curb would be sufficiently wide enough to meet these standards, but again, I'm not a traffic engineer, so I don't know for sure.
That being said, I really would be surprised if flex posts aren't held to the same standards as metal bollards...my guess is simply that the engineers are incredibly ridiculously unbelievably conservative to anything even remotely impinging on traffic.
To give an example, transportation commissioner was saying that, maybe, possibly, if they really really were desperate they could use a 3.55 meter lane, instead of a 3.65 meter lane in order to achieve a 1.35 (still undersized) bike lane, instead of 1.25, but anything more, would be entirely unacceptable. Now remember, CoK has no problem with 3.1 meter lanes and many places will go as low as 2.8 meters. But regional standards say that curb lanes must be 3.65, and that's the last thing to be compromised.