ogc_fid(integer)

tmc(string)

congestion_level(string)

year(integer)

avg_speedlimit(integer)

directionality(string)

avg_vehicle_occupancy(string)

state_code(integer)

county_code(string)

region_code(string)

mpo_code(string)

ua_code(string)

state_name(string)

county_name(string)

ua_name(string)