I have not paid a lot of attention to this, though it has appeared on the front page of the local papers often enough (notably last September with the headline "crossroads in national spotlight").
The council have put quite a lot about it on their web site, and not just in response to all this comment. From the start, they seem to have wanted to show they were not just roads managers. (Note this all goes back long before the Lib Dems took over the council in 2022).
The junction was a double mini-roundabout, and they never work very well because drivers have to attend to too many directions at once. With a lot of pedestrians as well, it has been seen as a problem for a long time. But development means more houses, more traffic, and some s106 money to throw at the problem.
The 25 March 2015 planning committee report states:
‘The main constraint along Nine Mile Ride is California Crossroads where currently there are intermittent peak hour delays, and increased delays would be expected. Mitigation alternatives have been examined and a Working Group has been set up with representatives from the local community, and this had its first meeting in late February. At the meeting, options were discussed, and it was agreed that the preferred approach would be a scheme that retained a similar level of highway capacity, and that the priority would be to deliver an environmental improvement in the centre of Finchampstead. An environmental improvement would facilitate the multi-modal use of the junction and improve its operation. Over the coming months a scheme will evolve based on these principles to be funded by the developers, and it will be subject to wider engagement.’
From then on the language and logic have got more woolly. My objection to it is that for drivers who are not locals and come across it while at least half lost, having to cope with such an unfamiliar style of junction is an extra risk. Successful cooperation between drivers an pedestrians requires them to all know what's going on, and who is going to go where. I'm not convinced by the more recent idea that forcing drivers to work things out with no guidelines is safer in a case like this