WB Liverpool Street approach speed

Without looking at the diagrams, remember that Liverpool Street westbound is one of the platforms with the longest potential dwell times, along with a slow departure due to the numerous curves towards Bank. Although the Central Line signalling most certainly has the capability for a high speed or low speed approach (most noticeable at Woodford westbound), perhaps the slow approach is more to do with signalling headways than the presence of points?

It's noticeable how the lines from/to Bethnal Green are very much straight at Liverpool Street; at opening when there were just the two sidings the tunnels curved to/from the sidings allowing the sidings to be directly adjacent to each other. One wonders if it was designed like this on purpose to allow an extension with provision for two centre sidings, or whether it was simply fortunate? Presumably there was a lot of rebuilding associated with the platform extensions - the sidings for example now stretch about 100m further east then when first opened.

Would the agreement not have been between the Central London Railway and the Great Eastern Railway given the extension from Bank to Liverpool Street opened in 1912