Iowa DOT

Volume of Traffic on the Primary Road System

Route	2012	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2012				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	9.583	2690	11	1804	874	13	53	15	2	94	649	21	27	25778	8376
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.297	510	3	418	89	2	8	2	0	9	62	2	2	151	26
20	NORTH-EAST SOUTH-EAST RAMP*	Rural	0.281	510	3	418	89	2	8	2	0	9	62	2	2	143	25
20	WEST-NORTH WEST-SOUTH RAMP *	Rural	0.414	660	3	475	182	4	15	4	0	19	129	4	5	273	75
20	NORTH-WEST SOUTH-WEST *	Rural	0.415	580	3	476	101	2	10	3	0	10	70	2	2	241	42
20	INTERSECTION CO RD N57	Rural	1.998	2870	13	2017	840	12	51	15	2	90	623	21	27	5734	1678
20	INTERSECTION CO RD N65	Rural	3.933	3620	17	2672	931	20	83	24	3	95	656	22	28	14237	3662
20	INTERSECTION CO RD P19	Rural	5.013	3770	18	2821	931	20	83	24	3	95	656	22	28	18899	4667
20	WEST LINE OF WEBSTER COUNTY	Rural	2.994	3570	17	2622	931	20	83	24	3	95	656	22	28	10689	2787
	ROUTE SUMMARY - RURAL		24.928	3055												76145	21338