Iowa DOT

Volume of Traffic on the Primary Road System

Route	2013	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2013				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	2690	11	1807	873	12	55	13	1	79	659	23	30	25773	8364
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.297	510	2	418	89	2	9	2	0	8	63	2	2	151	26
20	NORTH-EAST SOUTH-EAST RAMP*	Rural	0.281	510	2	418	89	2	9	2	0	8	63	2	2	143	25
20	WEST-NORTH WEST-SOUTH RAMP *	Rural	0.414	660	3	476	182	4	16	4	0	16	132	5	6	273	75
20	NORTH-WEST SOUTH-WEST *	Rural	0.415	580	3	476	101	2	10	2	0	9	72	2	3	241	42
20	INTERSECTION CO RD N57	Rural	1.998	2870	12	2019	839	12	54	13	1	76	633	22	29	5734	1676
20	INTERSECTION CO RD N65	Rural	3.933	3620	16	2674	930	20	87	21	2	80	667	23	30	14237	3658
20	INTERSECTION CO RD P19	Rural	5.013	3770	17	2824	930	20	87	21	2	80	667	23	30	18899	4662
20	WEST LINE OF WEBSTER COUNTY	Rural	2.994	3570	16	2624	930	20	87	21	2	80	667	23	30	10689	2784
	ROUTE SUMMARY - RURAL		24.926	3055												76140	21312