"The 11-mile rail project from West to North West London would stop at Isleworth, Brentford, Acton, Harlesden, Neasden and Brent Cross....The new rail network, which has been in the planning phase since 2017, would form part of the existing Overground network which was established ten years earlier...The route would provide the Overground network with interchanges with Thameslink rail services in North London, as well as the Underground's Jubilee line and existing Overground services on the Richmond/Clapham Junction to Stratford line."