Denham Roundabout

The Denham Roundabout is where Western Avenue, the A40, flows into the M40 motorway. The roundabout below facilitates junction 1 (J1) of the motorway to connect with the westbound continuation of the A40, together with the intersection of the road from Uxbridge (A4020) and the road from Slough to Watford (A412).

When the M40 from Denham to High Wycombe was built, Western Avenue was extended at high level to make an end-on join with the motorway, and a larger roundabout was built below the bridges carrying the motorway. When first laid out, the roundabout had the traffic going round it clockwise in the usual way, but as traffic volumes built up, the layout was altered so that the traffic moved round the roundabout in both directions, making it a ring junction with mini-roundabouts at the points that other roads join the main roundabout.

Motorways	M1 M4 M25 M40

A-Roads	A4 A40 A41 A404 A412 A413 A418 A421 A422 A428 A4010 A4012 A4146 A4155 A5 A508 A509 A5130

Roman roads	Akeman Street Watling Street

Notable Junctions	Handy Cross roundabout Denham Roundabout Magic Roundabout (High Wycombe)

Motorway service stations	Beaconsfield Newport Pagnell

Rail

Main lines	West Coast Main Line Chiltern Main Line Great Western Main Line

Other lines	Marston Vale Line London to Aylesbury Line Metropolitan line Princes Risborough to Aylesbury Line Marlow Branch Line

Closed lines	Varsity Line Great Central Main Line Banbury to Verney Junction Branch Line Brill Tramway Wycombe Railway Watlington and Princes Risborough Railway Cheddington to Aylesbury Line Aylesbury and Buckingham Railway Wolverton to Newport Pagnell Line Bedford to Northampton Line

Other	Chinnor and Princes Risborough Railway East West Rail Link Buckinghamshire Railway Centre Seer Green rail crash List of railway stations

Air

Waterways

Rivers	River Thames River Great Ouse

Canals	Bedford & Milton Keynes Waterway (under construction) Grand Union Canal Branches: Slough Arm Wendover Arm Aylesbury Arm

Footpaths

National Trails	Thames Path The Ridgeway

Long-distance footpaths	Icknield Way (path) Chiltern Way Greater Ridgeway Midshires Way Ouse Valley Way Shakespeare's Way Swan's Way

Cycle Paths

Transport in Milton Keynes

Road	Milton Keynes grid road system A421 A422 A4146 A5 A509 A5130 H6 Childs Way H10 Bletcham Way V6 Grafton Street V8 Marlborough Street

Rail	Bletchley railway station Bletchley TMD Bow Brickhill railway station East West Rail Link Fenny Stratford railway station Marston Vale Line Milton Keynes Central railway station Varsity Line West Coast Main Line Woburn Sands railway station Wolverton railway station Wolverton to Newport Pagnell Line

Bus	Buses in Milton Keynes Arriva Shires & Essex Milton Keynes Coachway MK Metro Stagecoach in Northants United Counties Omnibus

Water	Bedford & Milton Keynes Waterway (under construction) Cosgrove aqueduct Grand Union Canal

Other transport	Milton Keynes redway system Watling Street Wolverton and Stony Stratford Tramway

Coordinates: 51°33′40″N 0°29′46″W / 51.561°N 0.496°W / 51.561; -0.496

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Denham Roundabout

See also