Traffic Increase: TREK Highway Services using the ‘Rolls Royce’ of traffic management lorries!. Clips of TREK Highway Services NEW Coner Crash Cushion lorry. The new lorry has huge capacity. Safely and efficiently delivering 2 x 4km closures. Performance wise, this means it can do the job of two standard traffic management lorries. The new lorry also has a number of design features, which improve operative safety, increase efficiency and reduce CO2 emissions. For more information, visit www.trekserv.co.uk