Tulyar's post above is an EXCELLENT example of why local people/activists should not be relied upon.
I know this contradicts my post above. I totally agree with chdot that the council should have the expertise to do this stuff right, or at a minimum follow the guidelines. and if they don't, they should work with sustrans, as they were supposed to have done here.
BUT, I also wonder if we could have influenced it a bit earlier if we'd had someone on the ground with just enough knowledge to say 'this is bad', even if they don't have the expert knowledge to say what might work better.