Roundabouts are meant to help the traffic flow where there are roads crossing each other such as cross roads, to avoid traffic congestion.
To make this successful and safe before exiting from a junction into a roundabout, there are signs to guide drivers to give way to traffic at the roundabout. However in most cases this is not well observed.
Many drivers do not understand the meaning of give-way signs marked on the road. Give-way signs on poles are usually at the end of the junction just before one enters a roundabout. And some drivers do not even bother to slow down or even stop for that matter.
Solutions if any:
Give-way signs should be more frequent before exiting into a roundabout.
They should be illuminated with flashing lights to be better noticed day and night. If necessary introduce cobble stone effect on the edge of the junction to bring one to notice to slow down.
Police, wardens or vendors should never stop stationary at roundabouts for any reason.
Bus stops should be removed from roundabouts.
No vehicle exits should be allowed onto roundabouts.
Drivers should show more respect on the roads especially at roundabouts.
Refresher tests should be introduced to ensure drivers' knowledge of the Highway Code.