The biggest roundabout in the world is located at Putrajaya, Malaysia with a diameter of 3.5km (2.7 miles).
If I not mistaken, Malaysia have a largest roundabout located in Putrajaya. http://bksempoi.blogspot.com/2010/10/worlds-largest-roundabout-putrajaya.html?showComment=1288456282299#c2950809733147168482
London is the largest city in Britain.
leon paul is the largest in Britain situated in London
the biggest round about in asia is in Quezon City, Philippines. The Quezon City Memorial Circle. It is approximately 2km.
A driver must always look to the left and yield to a vehicle that is already in the roundabout.
Cars in the roundabout have the right of way over cars entering the roundabout.
Britain.
The biggest round about in India is in thrissur Kerala approximate 1.5 km
The junction is controlled by a roundabout.
The Magic Roundabout was created in 1964.
The Magic Roundabout ended in 1971.