S30129 Road Design DMRB Standards Research & Development CD127, CD109 & CD116

National Highways is commissioning a programme of research to review and potentially modernise key road design standards, with a strong focus on safety, efficiency and future capacity of the strategic road network. This work will examine whether motorways and major roads could safely carry more lanes than currently allowed, and whether alternative road layouts (such as 2+1 or 2+2 configurations with central barriers) could deliver similar performance at lower cost, while maintaining or improving safety. It will als...