APPENDIX II
Location of Other Highway Systems of Various Mileages Investigated by the Committee
Figure 1.—The 14,300-mile system investigated by the Public Roads Administration in connection with the report Toll Roads and Free Roads, sent to Congress by the President in 1939.
Figure 2.—The 26,700-mile system tentatively proposed as an interregional highway system by the Public Roads Administration in the report, Toll Roads and Free Roads.
Figure 3.—The 29,300-mile system investigated by the Public Roads Administration as an interregional system and described in Public Roads, June 1941.
Figure 4.—The 48,300-mile system, consisting of the more important routes of the 78,800-mile system.
Figure 5.—The 78,800-mile system. This is the largest system investigated by the Committee.