 The street level interchange between the GNP & BR and CLR involving two sets of lifts was considered a weakness in the network . A below ground subway connection was considered in 1907 . A proposal to enlarge the CLR 's tunnels to create new platforms at Holborn station and to abandon British Museum station was included in a private bill submitted to parliament by the CLR in November 1913 , although the First World War prevented any works taking place . 
