Cars speeding around the round about every day every night ,mainly at night,sometimes just speeding around the round about continuously ,driving around the round about several times fast as possible

Idiots speeding around the roundabout, every single day, day or night, but mainly at night, I'm sick of it its been like this for a long time now, something needs doing about it, speed cameras on the roundabout would help %100, idiots just speed around & around & around all the time trying to go fast as possible, at night it's more frequent because there's no one to see them, please install some speed cameras or something please, there's been many times when the bus stops around the area of the roundabout have been hit & destroyed because of the speeding cars losing control, its a matter of time before someone dies from being hit standing at a bus stop or a pedestrian just walking down the street,