|Location Map ( geo)|
|To:||Turnham Green (TQ206784)|
|Via:||Wellesley Road, Heathfield Terrace|
|Distance:||1 miles (1.6 km)|
|Route outline (key)|
The A3000 runs parallel to Chiswick High Road in west London, avoiding the Chiswick Roundabout. Although this junction was not foreseen in 1922 when the road number was allocated, a westward extension of the A4 (now the Great West Road) was under construction at the time.
The westernmost section of the A3000 Wellesley Road is one-way westbound, with eastbound traffic presumably using Clarence Road, which starts just to the west of the Chiswick Roundabout. After the two directions join the road continues east along Wellesley Road to run under the start of the M4 and the A4 slip roads. After going over the District Line by Gunnersbury station the road continues on to a roundabout on the corner of Turnham Green. It turns right along Heathcote Terrace, with the green itself on the left and Chiswick Town Hall on the right at one point. The road ends at the far corner of the green at traffic lights on the A315.
In 1922 the A3000 ended on the A315 to the west and A4 to the east; with the rerouting of the A4 and the institution of the South Circular, the A205 is now to the west and the A315 to the east although the route of the A3000 is unchanged. The road name at both ends is Chiswick High Road, emphasising that this was the main road until the construction of the present route of the A4 in the 20th century.