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A403 (Western Avenue)

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A403
A403 Western Avenue in Northolt
Cameraicon.png View gallery (2)
Western Avenue
From:White City (TQ231810)
To:Denham (TQ043857)
Via:Greenford
Length:13 miles (20.9 km)
Met: A219, A404, A406, A312, A40
Now part of:A40
Traditional Counties

Middlesex

Route outline (key)
A403 White City - Denham
This article is about the original A403 in West London that is now the A40.
For current road between Avonmouth and the M48, see A403
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Western Avenue as it is today

The A403 was originally allocated to Western Avenue, a new major arterial route from White City (near the former BBC Studios) to Uxbridge, providing a bypass of the heavily built up A40 Uxbridge Road. It opened (in stages) with this number (the road did not exist at all in 1922), though eventually its importance over the parallel older road was recognised, and according to the relevant Ten Mile Road Maps it was renumbered to A40 between 1939 and 1946 (with the latter date being most likely for obvious reasons), with the old A40 Uxbridge Road becoming the A4020.



A403 (Western Avenue)
JunctionsDenham Roundabout • Hanger Lane Gyratory
Related Pictures
View gallery (2)
A40 at Hillingdon - Geograph - 2357958.jpgA403 (Western Avenue) NPE map.png
Other nearby roads
Shepherds BushA205 • A219 • A3220 • A40 • A40(M) (Central London) • A40/Central London - Denham • A402 • A4020 • B407 • M14 • M41 • Orbital Tunnel Route
ActonA40 • A40/Central London - Denham • A4000 • A4020 • A405 (Gunnersbury Park - Wembley) • B408 • B4492 • B492 • Longest Lane • T10 (Britain)
EalingA3001 • A40 • A40/Central London - Denham • A4020 • A405 (Gunnersbury Park - Wembley) • A406 • A4127 • B452 • B454 (Brentford - Southall) • B455 • B490 • Longest Lane • Ringway 2 • T10 (Britain) • T36 (Britain)
UxbridgeA332 • A40 • A40(M) (Denham - Stokenchurch) • A40/Central London - Denham • A40/Denham - Wheatley • A4007 • A4020 • A408 • A437 • B467 • B470 • B483 • Longest Lane • M16 • M25 • M40 • Northern and Western Motorway • T10 (Britain) • UX1 (Hillingdon) • UX3 (Hillingdon) • UX4 (Hillingdon) • UX5 (Hillingdon)
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