Post repair on Fernwood Avenue/ Mitcham Lane

We have asked for a post to be repaired at the junction of Fernwood Avenue and Mitcham Lane. It appears to have been knocked over by a traffic collision. It isn't clear is this falls under the jurisdiction of Lambeth Council or Transport for London as it is on the corner of a Red Route, so we have contacted them both.

[Update: 19/7/13 Lambeth Council have responsibility and this has been passed onto their Highway Engineers]