The companies south of the Thames received the cross-London traffic at places such as Battersea Wharf and Norwood Junction on the LB&SCR, Herne Hill on the LC&DR and Bricklayers Arms on the SER. Traffic from GNR to L&SWR used the Widened Lines to Clapham Junction or Brentford, or the North London and North & South Western Junction Railways, according to destination, but for traffic from MR to L&SWR the route via Acton Wells Junction and the North & South Western Junction Railway was more convenient, especially after the marshalling was done at Brent Sidings. The extensive marshalling yard at Hither Green SER was opened in 1899, while a new yard opened at Feltham on the L&SWR in 1917-21 largely replaced that company's existing yards.