The state statutes are analyzed and compared to ascertain the types of statutes the states have enacted to ensure their state's ability to participate in the benefits made available by federal-aid highway legislation. Statutes which pertain to the interstate system, federal-aid secondary roads, railway-highway crossings, public utility relocation, and other aspects of federal highway aid are analyzed. Assent statutes are discussed and evaluated.

The constitutional boundaries are reviewed as they relate directly or indirectly to highway operations. The state constitutional provisions are reviewed which affect both the existing statutes and future legislation relating to highways. Several constitutional provisions are discussed where applicable. The analysis is organized according to functional areas of highway law.