In some places, short cycle lanes have been painted on the road, usually blocked out in green, and can be a short as 3 or 4 metres in length. Have never fathomed out how they work in practice.
In another instance, the council has seen fit, on a 30mph stretch with houses on one side and fields on the other, to reshape the kerbs with staggered bulges, which are filled with tarmac and a plastic bollard with red reflectors erected in the centre of each bulge. naturally these plastic bollards have fallen into disrepair, the council have lost interest in their maintenance, and at least two are now just very low protrusions where they have been broken off.
So, poor visibility/bad weather conditions leaves drivers strange to the area at risk of hitting these kerbs - motorcyclists being particularly vulnerable.
This means that the council has two problems: (a) erecting obstructions unnecessarily and (b) not realising that later failure to maintain them will increase the dangers immensely - not remove them.
We have a lights-controlled T-junction (happens to be at the end of the above-mentioned road). There have been collisions at this junction, but never when the lights have been broken down.
I think this indicates how pointless all the lane markings are around traffic islands. Someone gets in the wrong lane, and confusion and road rage results.
Take away these markings and drivers will sort themselves into a natural flow.
The lanes generate territorial behaviour, in the same way that a driver sees a green light as his God-given right to carry on regardless.
Without the lights, drivers exercise more caution.