>>2055459
>roundabouts are much cheaper than lights,
Arguably. Except when they don't work due to overcrowding and get traffic lights added.
>better at slowing traffic and lowering collision rates
Roudabouts are nororious for collisions and really quite dangerous. Lethal for cyclists.
>than lights or signs, and give better traffic flow than them too.
They certainly do not with high traffic. They get channel capture and you get stuck. E.g. Simister Island or Boothferry Road/Ferriby Road A15/A63 junction which has been one long traffic jam since being built in the 1980s.
>also they're funner if you're a sanic bike cycle rider or have a miata
That is another way to say dangerous and everyone in normal cars flying across all lanes without looking because the roundabout shouldn't be there, like the A682 New Hall Hey Road. Also a place with regular accidents.
Roundabouts are complete shit and are only built to fulfil the demands of modern day Saturn worshippers who revel in destruction and require wheel symbolism. Which basically is any pre-Christian religion or cult.