Iowa DOT

Volume of Traffic on the Primary Road System

Route	2016	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2016				Motorcylces	Cars, vans and pickups	Total trucks and buses	Single unit trucks				Combination trucks				All vehicles	Trucks and buses
	Primary route section description							Single unit trucks				Combination trucks
	Primary route section description							Buses	2Axles	3Axles	4 or more axles	4 or less axles	5Axles	6 or more axles	Multiple trailers
20	13 Calhoun COUNTY
20	IA 4 INTERCHANGE	Rural	9.581	4520	15	3103	1402	26	133	28	3	111	997	43	62	43306	13433
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.297	850	3	584	264	6	31	7	1	20	180	8	12	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.281	800	3	560	237	6	29	6	1	18	160	7	10	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.414	460	1	290	169	4	18	4	0	13	118	5	7	0	0
20	NORTH-WEST SOUTH-WEST	Rural	0.415	530	2	353	175	3	17	4	0	14	124	5	7	0	0
20	INTERSECTION CO RD N57	Rural	1.998	5700	21	4212	1467	26	133	28	3	117	1051	45	64	11389	2931
20	INTERSECTION CO RD N65	Rural	3.933	6000	22	4511	1467	26	133	28	3	117	1051	45	64	23598	5770
20	INTERSECTION CO RD P19	Rural	5.013	6200	23	4710	1467	26	133	28	3	117	1051	45	64	31081	7354
20	WEST LINE OF WEBSTER COUNTY	Rural	2.994	6400	24	4909	1467	26	133	28	3	117	1051	45	64	19162	4392
	ROUTE SUMMARY - RURAL		24.926	5192												128536	33880