NATIONAL
COOPERATIVE HICHWAY RESEARCH PROGRAM a
Web-Only Document 258:
Glenn J. Rli Njorogo Wainaina AU Ebrahlml Robert C. Bachu*
Maria Lima*
RodoMo Sanclo Brookc Fait
Gcoayntcc Conauttanta. Inc. Ralełgh, North Carolina
Paul W. Mayne
Georgia loatitute ot Technology Atlanta, Georgia
Finał Report fer NCHRP Project 21-10 Subrrrtted Nowember 2018
TIu- NUtemri of