6
TOLL ROADS AND FREE ROADS
curving through the States of Idaho, Nevada, and Arizona. The
average daily number of all such vehicles is 2,532, all of which are
bound to or from the three Pacific-coast States in the proportions indicated by the numbers appearing at the end of the scaled tentacles running to the three States.
Plate 1.—Average daily number of passenger cars traveling between Pacific Coast States and States east of Idaho, Nevada, and Arizona. Figures represent total travel in both directions on all main traveled east–west roads. States of observation were located along the line A–A.
Similarly the numbers of passenger cars bound to or from points in all States eastward of the three in which the counts were made are
