The Victoria line was designed to get rid of build-ups of traffic on other lines, such as the Piccadilly line. It was also designed to have as many interchanges as possible, and all stations except Pimlico have an interchange with at least one other London Underground or National Rail line. It had been intended to build the line past Walthamstow Central to Wood Street (Walthamstow), where it would come above ground to terminate next to the British Railways station. However, a late decision in 1961 saw the line cut back to Walthamstow Central station. Until 1968 this station was called Walthamstow (Hoe Street).