TY - BOOK TI - Highway design and maintenence standards model. AV - TE175 .H54 1988 PY - 1988///. CY - [S.l.] PB - Johns Hopkins Univ Press KW - Motor vehicles KW - Cost of operation KW - Mathematical models KW - Roads KW - Design and construction KW - Deterioration KW - Maintenance and repair N1 - v. 1. Description of the HDM-III model -- v. 2. User's manual for the HDM-III model. ER -