Denham Roundabout
Encyclopedia
The Denham Roundabout is a large road intersection to the west of London, at junction 1 (J1) on the M40 motorway
.
When Western Avenue was originally built, it ended at a point west of Uxbridge
at the intersection of the road from Uxbridge towards Gerrards Cross
and High Wycombe
(the old Oxford Road) with the road from Slough
; a conventional roundabout was constructed to replace the former tee-junction where the older roads joined. When the M40 towards 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 (so as to make the roundabout a kind of very small ring road) with mini-roundabouts at the points where other roads join the main roundabout.
More recently an access road to a golf club has had its own mini-roundabout created on the north side of the main roundabout.
M40 motorway
The M40 motorway is a motorway in the British transport network that forms a major part of the connection between London and Birmingham. Part of this road forms a section of the unsigned European route E05...
.
When Western Avenue was originally built, it ended at a point west of Uxbridge
Uxbridge
Uxbridge is a large town located in north west London, England and is the administrative headquarters of the London Borough of Hillingdon. It forms part of the ceremonial county of Greater London. It is located west-northwest of Charing Cross and is one of the major metropolitan centres...
at the intersection of the road from Uxbridge towards Gerrards Cross
Gerrards Cross
Gerrards Cross is a village in Buckinghamshire, England. It is in the south of the county, near the border with Greater London, south of Chalfont St Peter. Gerrards Cross is also a civil parish within South Bucks district, which was known as the Beaconsfield district from 1974 to 1980...
and High Wycombe
High Wycombe
High Wycombe , commonly known as Wycombe and formally called Chepping Wycombe or Chipping Wycombe until 1946,is a large town in Buckinghamshire, England. It is west-north-west of Charing Cross in London; this figure is engraved on the Corn Market building in the centre of the town...
(the old Oxford Road) with the road from Slough
Slough
Slough is a borough and unitary authority within the ceremonial county of Royal Berkshire, England. The town straddles the A4 Bath Road and the Great Western Main Line, west of central London...
; a conventional roundabout was constructed to replace the former tee-junction where the older roads joined. When the M40 towards 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 (so as to make the roundabout a kind of very small ring road) with mini-roundabouts at the points where other roads join the main roundabout.
More recently an access road to a golf club has had its own mini-roundabout created on the north side of the main roundabout.
See also
- Magic Roundabout (Colchester)Magic Roundabout (Colchester)The Magic Roundabout in Colchester, Essex, England, is similar to the roundabouts in Swindon and Hemel Hempstead with the same name. It is a large ring of road composed of five mini roundabouts, with 2 lanes in each direction joining each to its neighbour...
- Magic Roundabout (Colchester)Magic Roundabout (Colchester)The Magic Roundabout in Colchester, Essex, England, is similar to the roundabouts in Swindon and Hemel Hempstead with the same name. It is a large ring of road composed of five mini roundabouts, with 2 lanes in each direction joining each to its neighbour...
- Magic Roundabout (High Wycombe)Magic Roundabout (High Wycombe)The Magic Roundabout in High Wycombe, Buckinghamshire, England, is similar to the roundabout in Swindon and other places with the same name. It is located on the junction of the A40 and A404...
- Google Maps satellite image view