Gall highway bridges in the united states are inspected periodically for structural deficiency by the federal highway administration. data from the fhwa inspections are compiled into the national bridge inventory (nbi). several of the nearly 100 variables maintained by the nbi are listed below. classify each variable as quantitative or qualitative.

(a) toll bridge
(b) average daily traffic
(c) conition of deck
(d) route type
(e) number of vehicle lanes