In late 1902, the PC&NELR plans collapsed after a falling out between the scheme's promoters led to a crucial part of the planned route coming under the control of a rival, the Underground Electric Railways Company of London (UERL), which withdrew it from parliamentary consideration. With the PC&NELR scheme out of the way, the CLR resubmitted its bill in 1903, although consideration was again held up by Parliament's establishment of the Royal Commission on London Traffic tasked to assess the manner in which transport in London should be developed. While the Commission deliberated, any review of bills for new lines and extensions was postponed, so the CLR withdrew the bill. The CLR briefly re-presented the bill for the 1905 parliamentary session but withdrew it again, before making an agreement with the UERL in October 1905 that neither company would submit a bill for an east–west route in 1906. The plan was then dropped as the new trains with driving positions at both ends made it possible for the CLR to reduce the minimum interval between trains to two minutes without building the loop.