In light of the time that has elapsed and changes that have occurred since the 2006 C&P report/NCHRP study and the Policy Commission estimates were developed, the Financing Commission—with valuable input and technical assistance from the Federal Highway Administration—developed its own estimates to respond to its congressional mandate to examine needs for HTF resources. This effort resulted in a Base Case Investment Scenario, which provides an update to total and federal long-term capital investment needs for highways and transit based on current policies and programs and the historical federal/ non-federal spending roles. The Commission also examined investment needs assuming an alternative strategy, as described later in this section, including aggressive implementation of road pricing and greater use of public transportation.