TRB Special Report 295, The Federal Investment in Highway Research, 2006-2009: Strengths and Weaknesses assesses how well the investments that Congress made in research programs through the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users comply with the principles articulated in the preface to the act's research title. The book contains findings and recommendations about specific research programs and calls for reliance on competition and merit review in awarding funds through the Federal Highway Administration and in selecting institutions for the University Transportation Centers program of the Research and Innovative Technology Administration.