Critics of the BRU argue for the need to consider other forms of transit in addition to buses.
Advocates of rail argue that rail is need to restrict sprawl, reduce air pollution by promoting mass transit, save energy, and reduce traffic congestion. In addition, the federal subsidies for rail construction were either
us </gallery> ed by the states or lost, "use it or lose it."<ref name="grengs">Grengs, Joe (2002). Community-Based Planning as a Source of Political Change: The Transit Equity Movement of the Bus Rider's Union. ''Journal of the American Planning Association'', 68(2), 165-175.</ref>
The BRU and transportation scholars do not always agree on how transit fare structures should change.<ref name="grengs" />