A traffic-free zone is to be set up around a school as part of a trial aimed at making streets safer for children following “volatile and aggressive” exchanges. Holy Trinity Church of England Primary School in Dartford is the latest in Kent to join the national “school streets” initiative. The term refers to a road outside a school with a temporary restriction on traffic at school drop-off and pick-up times, to tackle air pollution, poor health and road danger. It means only pedestrians and cyclists can use the roads at certain times. As part of the latest trial initiated by Kent County Counci…