P P e e r r f f o o r r m m a a n n c c e e o o f f H H i i g g h h R R A A P P P P a a v v e e m m e e n n t t S S e e c c t t i i o o n n s s i i n n N N H H R R e e s s e e a a r r c c h h Final Report Prepared by the University of New Hampshire Department of Civil Engineering for the New Hampshire Department of Transportation in cooperation with the U.S. Department of Transportation, Federal Highway Administration