[IET IET Road Transport Information and Control Conference and the ITS United Kingdom Members' Conference (RTIC 2010). Better transport through technology - London, UK (25-27 May 2010)] IET Road Transport Information and Control Conference and the ITS United Kingdom Members' Conference (RTIC 2010). Better transport through technology - Simulation study on improving traffic safety and traffic flow in the vicinity of a motorway accident through vehicle-to-vehicle communication