- The collision happened at Boston Manor Road with the junction of Half Acre
- The pensioner and her granddaughter were thought to be crossing the road at the time
- The woman in her late 60s died at the scene
- Her granddaughter escaped without injury
More top news
Official readings are recorded three metres in the air but a study found levels of nitrogen dioxide (NO2) were higher at pushchair level.
Tubes, trains, trams, buses, cable cars, river buses, taxis and going by foot - your guide to getting around during the strike.
Union officials rejected a revised offer from Underground managers during a meeting at the conciliation service ACAS this afternoon.