Until late 2019, the A40 will be reduced from three lanes to two lanes for westbound traffic, 24 hours a day during works.
Queueing is expected to be longer, and impacts to traffic more pronounced, in the PM peak periods for westbound traffic.
View the construction area and live traffic conditions on our traffic status map.
Expect delays while travelling westbound on the A40 until late 2019, especially during PM peak periods (weekdays 14:00 - 18:00pm). Plan ahead, travel outside peak periods, and leave extra time for your journey.
Consider alternative ways of travelling, especially the Tube.
If you are driving, plan ahead, travel outside peak periods, and allow more time for your journey.
Consider alternative ways of travelling, especially the Tube and cycling.
Speak to your supplier about whether they can re-time deliveries and servicing trips to outside PM peak hours.
Find out more about changing deliveries.
For news about traffic in London, follow @TfLTrafficNews.
Westbound services 95, 260, 283, and 487 will continue as usual on the A40. Bus stops will be maintained.
Some stops will be temporarily relocated at times. Changes to stops will be signed.
Westbound bus services on the A40 may experience delays during PM peak hours. Please plan ahead, allow more time for your journey and, if possible, travel outside peak periods.
For the latest information on how buses are running, see our bus status updates.
Follow @TfLBusAlerts for news and service information.
Tube services are unaffected by the works.
The Tube will be one of the best ways of making journeys to and from the area during these works.
Footpaths and pedestrian crossings will remain open wherever possible, although some temporary closures or diversions may apply. There will be signs to guide you safely through the works area.
See our map showing walking times between stations on the same Tube line.
Signs will be in place to help cyclists during works.
There are a number of Santander Cycle docking stations near White City.
If you want to hire a Santander Cycle, you can check availability using the online docking station map.
Follow @SantanderCycles for news and customer service.
Find information on cycling and nearby cycle routes.
Westbound coach services may be delayed while travelling on the A40.
Consider a change to your route if possible to give you a more consistent journey time.
Check with your operator before travel.
The Acton to Wood Lane improvement project will create more space for cyclists and pedestrians by widening the existing shared-use path on the southern side of the A40. It will also provide a two-way cycle track next to the path between Savoy Circus and Kathleen Avenue.