A fresh row has broken out about the use of longer semi-trailers (LSTs) on UK roads. The storm follows the publication this week of report by the Department for Transport (DfT) after five years of trials. The 2016 annual report into the LST trial, authored by research consultancy Risk Solutions, concludes that LSTs have cut haulage road miles and have lower accident levels than conventional HGVs. LSTs are up to 2.05 metres longer than standard semi-trailers, 15.65 ...