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	81 Sac COUNTY
20	JUNCTION IA 110	Rural	1.700	3400	11	2204	1185	23	118	25	3	93	836	36	51	5780	2015
20	WEST JUNCTION US 71 INTERCHANGE	Rural	7.203	3250	10	2105	1135	15	78	16	2	94	843	36	51	23410	8175
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.344	980	4	874	102	4	21	4	1	7	59	3	4	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.295	1090	5	949	136	4	20	4	0	10	88	4	5	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.346	410	2	355	53	3	15	3	0	3	26	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.260	410	2	367	42	2	11	2	0	2	21	1	1	0	0
20	INTERSECTION CO RD M50	Rural	3.040	4370	15	3113	1241	27	138	29	3	95	858	37	53	13285	3773
20	INTERSECTION CO RD M54	Rural	5.497	4170	14	2915	1241	27	138	29	3	95	858	37	53	22922	6822
20	EAST JUNCTION US 71 INTERCHANGE	Rural	1.941	4170	14	2915	1241	27	138	29	3	95	858	37	53	8094	2409
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.346	280	1	209	70	2	9	2	0	5	47	2	3	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.299	250	1	192	57	2	10	2	0	4	35	1	2	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.307	180	1	148	31	1	3	1	0	2	22	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.290	180	1	140	39	1	5	1	0	3	26	1	1	0	0
20	WEST LINE OF CALHOUN COUNTY	Rural	5.035	4520	15	3103	1402	26	133	28	3	111	997	43	62	22758	7059
	ROUTE SUMMARY - RURAL		26.903	3622												96249	30253