So the Evening Post is owned by the Wail? I didn't know that, but I'm not terribly surprised either.
I live right on the edge of the Kingsdown Conservation Area, so I've seen these proposals and mock-ups on the notice boards put up by the residents' association. It looks good, but a lot will depend on how it gets treated in practice. Of course, they also show these projected pics of summer, never of winter... It might work best if traffic is directed down Tyndalls Park Road at the top end and, perhaps less easily, past the university libraries at the bottom end. There should be both some physical deterrent - not just a change in road surface - and active measures to encourage more non-vehicular use of the road. This could include persuading/allowing the pubs and cafes to set out benches on what is now the carriageway (but who will want to sit there in winter?), maybe market stalls, some other ideas... I'm also wondering about what could be done to improve the High Kingsdown estate, whose alleyways seem a bit creepy at night.