Paul Corfield wrote:

I cannot fathom TfL's
approach to bus information at all and I find the absence of decent,
high quality travel centres to be bizarre.

Unless they've closed recently, there are decent bus information centres
dotted around. Harrow bus station, Turnpike Lane bus station and North
Greenwich spring to mind. I've always found the offices at Liverpool Street,
Victoria and Euston useful. Canning Town too.