Iowa DOT

Volume of Traffic on the Primary Road System

Route	2014	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2014				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	81 Sac COUNTY
20	JUNCTION IA 110*	Rural	1.700	3770	19	2814	938	30	139	31	3	66	616	23	30	6409	1595
20	US 71 INTERCHANG*	Rural	7.203	4310	23	3452	835	20	90	20	2	63	590	22	29	31045	6015
20	EAST-NORTH WEST-SOUTH RAMP*	Rural	0.344	640	4	535	102	4	19	4	0	7	62	2	3	0	0
20	NORTH-EAST SOUTH-EAST RAMP*	Rural	0.295	520	3	417	100	2	10	2	0	8	71	3	4	0	0
20	WEST-NORTH WEST-SOUTH RAMP*	Rural	0.346	480	3	378	99	3	13	3	0	7	67	2	3	0	0
20	NORTH-WEST SOUTH-WEST RAMP*	Rural	0.260	430	2	346	82	2	9	2	0	6	58	2	3	0	0
20	INTERSECTION CO RD M50*	Rural	3.040	4560	24	3679	856	21	98	22	2	64	598	22	29	13862	2602
20	INTERSECTION CO RD M54*	Rural	5.497	4560	24	3679	856	21	98	22	2	64	598	22	29	25066	4705
20	IA 196 INTERCHANGE*	Rural	1.941	4580	25	3700	856	21	98	22	2	64	598	22	29	8890	1661
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.346	330	1	171	158	2	8	2	0	13	123	4	5	0	0
20	NORTH-EAST SOUTH-EAST RAMP*	Rural	0.299	390	1	217	171	2	10	2	0	14	131	5	6	0	0
20	WEST-NORTH WEST-SOUTH RAMP*	Rural	0.307	390	2	326	62	3	14	3	0	4	35	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP*	Rural	0.290	410	2	342	66	3	14	3	0	4	38	1	1	0	0
20	WEST LINE OF CALHOUN COUNTY*	Rural	5.035	4500	23	3417	1060	19	88	20	2	84	781	29	38	22658	5337
	ROUTE SUMMARY - RURAL		26.903	4053												107930	21915