Right I don’t want to be a dick about this, and let me be clear first up that I think Low Traffic Neighbourhoods (LTNs) are a very good thing.
https://www.theguardian.com/politics/2020/nov/13/local-councils-advised-to-push-ahead-with-traffic-reduction-schemes

BUT.

[1/n]

I live on a street off the Crystal Palace Triangle (shopping area). My street is full of flats. We used to get *some* traffic and now we get a *shitload* of traffic. Fumes, radios blaring, the works. This is since an LTN was introduced on the other side of the Triangle.

[2/n]

Famously Crystal Pal is meeting point of four boroughs. I live in Lambeth, but within 100m live people in three other boroughs (Croydon, Southwark, Bromley).
The LTN has been introduced in the Bromley bit. Nice leafy streets & posh houses.
Lambeth bit has got its traffic.
[3]

There's all sorts of rumours I've heard about how Lambeth is both spitting chips about this but powerless to do anything about it. I don't know what's the case.

What I DO know is that posh houses over *there* are dead quiet now, and our road is most definitely now not.

(4/n)

(There is a LOT of local opposition to the LTNs. Where these are from drivers who don't like it being harder to drive about, I don't have much sympathy. But folk down my way, not unjustly, are saying: oh great, thanks Bromley Council, cheers.)

[5/n]

The point is emphatically NOT that LTNs are a bad thing per se. Safer cyclable quieter streets are good. The point is that everyone should have that, & that by randomly / self-interestedly shutting one bit to traffic you better be sure you're not making it shitter for others.
[6]

Our experience here underlines why "consultation" on LTNs can't just be with the people who stand to be LTNed, but those who any reasonable modelling would suggest are going to get more traffic. Who, obv, won't like it. Which means you need pinch-point-wide strategies ... [7]

And proper cycling & public transport planning for whole areas, not just a street-by-street approach.

It's easy to applaud LTNs a) in the abstract b) if you live in one and don't drive c) if you cycle through it. And THEY ARE GOOD. But only as part of a proper area-wide plan.

IMMEDIATE CORRECTION to the above thread which is I think the LTN is in Croydon jurisdiction not Bromley. Not sure. Doesn't change much either way.