Quick update - it appears while I've been away over the weekend the lights at the Tixall Road end of St Thomas Lane have changed
The lights for traffic heading up the Tixall Road to access Kensington Drive have been moved further back along the Tixall Road, so they are now on the other side of the Wolseley Road junction. The lights are therefore also now controlling traffic coming in and out of Wolseley Road onto the Tixall Road
I'm not sure if this in any way effects traffic coming down St Thomas Lane - I doubt it does, except perhaps causing a longer wait for the lights to change - I'll try and see if anything else has changed, it was very late when I got back last night so I couldn't really see properly