By Robert Harries A single roundabout exit has cost drivers a whopping half a million pounds in just one year. From December 2022 to November 2023, Carmarthenshire Council in Wales made an absolute fortune from one particular road calming measure. The council made exactly £509,525 from fines because drivers went into the bus lane at Trostre Roundabout. Delving into the figures further show 15,112 drivers were caught in the bus lane from August 2022 to December the following year. Robert Harries, a reporter with Wales Online, found himself motoring towards the lucrative roundabout on a cloudy d…