The southern section of the Inner Circle was suffering considerable congestion between South Kensington and Mansion House, between which stations the DR was running an average of 20 trains per hour with more in the peak periods.
Den sydlige del af Inner Circle havde betydelige kapacitetsproblemer mellem South Kensington og Mansion House, hvor MDR i gennemsnit kørte 20 tog i timen, og endnu mere i myldretiderne.