Data from a $6-ft$ by $6-ft$ inductive loop detector collected during a time period of $39sec$ indicate that the mean speed of

traffic is $58m\frac{i}{h}$ among the $18$ vehicles counted. Assume an average vehicle length of $19ft.$ Determine the density $($in

veh$/$mi$)$ and occupancy $($percentage$).$

density

veh$/$mi

occupancy

$\%$