M25 NORTH-EAST SECTOR: DESIGN OF HOLMESDALE AND BELL COMMON TUNNELS.

Keywords: DEPARTMENT OF TRANSPORT, G MAUNSELL & PARTNERS, MOTORWAYS, M25, TUNNELS, DESIGN, PROBLEMS, ENVIRONMENT, PROTECTION, IMPACT, ENVIRONMENTAL, TRAFFIC, VOLUME, STANDARDS, RURAL, CONSTRUCTION, CONTRACTS, ELECTRICAL, MECHANICAL, SERVICES, EARTHWORKS, PAVEMENTS, PHASING, TIMING, MANAGEMENT, SIDES, WALLS, SIDEWALLS, ROOFS, CENTRAL, SUPPORTS, CONTROL, COMPLEX, APPROACHES, FINISHES, GEOLOGY, DRAINAGE, EFFECT, ALTERNATIVE, ROADS, ORBITAL, HOLMESDALE, BELL COMMON, EPPING FOREST, WALTHAM CROSS, LONDON, UK