Abstract
Major objectives of this research were: (1) to study in depth the characteristics of oversize-overweight permit operations on U.S. highways, including characteristics of laws, procedures, and permit movements; (2) to develop a national inventory of permits issued during a one-year period, with appropriate breakdowns of permit features; (3) to determine the extent and nature of reciprocity relative to permit operations; (4) to determine foreseeable needs of industry for extensions of alteration of permit operations; and (5) to make a start in evaluating economic benefits of oversize-overweight permits.