28
TOLL ROADS AND FREE ROADS
accumulating sections are shown on plates 15 to 21, inclusive. Comparison of this entire series of plates gives a good idea of the relative traffic importance of the selected routes in various sections of the country. If the roads were built in the order of their traffic importance as toll facilities they would be built in the order of progression indicated by this series of maps.
Plate 14.—Map showing location of most important
2,066 miles of selected system as indicated by estimates of traffic based on operation as a toll facility.
Plate 15.—Map showing location of most important 2,977 miles of selected system as indicated by estimates of traffic based on operation as a toll facility.
