Iowa DOT

Volume of Traffic on the Primary Road System

Route	2011	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2011				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
80	52 Johnson COUNTY
80	CO RD W38 INTERCHANGE	Rural	1.550	23800	71	14691	9038	163	458	128	7	641	7341	87	212	36890	14009
80	EAST-NORTH EAST-SOUTH RAMP	Rural	0.298	390	2	364	25	3	8	2	0	1	11	0	0	116	7
80	NORTH-EAST SOUTH-EAST RAMP	Rural	0.311	440	2	398	40	5	13	4	0	1	17	0	0	137	12
80	NORTH-WEST SOUTH-WEST RAMP	Rural	0.280	170	1	151	19	2	6	2	0	1	8	0	0	48	5
80	WEST-NORTH WEST-SOUTH LOOP	Rural	0.180	160	1	138	22	2	4	1	0	1	13	0	0	29	4
80	WEST LIMITS OF TIFFIN	Rural	6.663	29700	99	20539	9062	167	469	131	7	642	7347	87	213	197891	60380
80	CO RD W52 INTERCHANGE	Municipal	0.501	29400	98	20331	8971	165	464	129	7	635	7274	86	209	14729	4494
80	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.267	1080	5	945	131	9	25	7	0	7	79	1	2	288	35
80	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.342	1330	6	1171	153	11	31	9	0	8	90	1	2	455	52
80	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.267	170	1	157	13	2	5	2	0	0	4	0	0	45	3
80	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.280	290	1	246	43	4	10	3	0	2	23	0	0	81	12
80	I 380 & US 218 INTERCHANGE AT EAST LIMITS OF TIFFIN &
80	WEST LIMITS OF CORALVILLE	Municipal	1.462	31400	107	22094	9200	179	505	141	8	648	7417	88	215	45907	13450
80	EAST-NORTH RAMP	Municipal	0.528	11400	45	9404	1950	89	252	70	4	119	1361	16	39	6019	1030
80	SOUTH-EAST RAMP	Municipal	0.497	3910	17	3455	438	37	104	29	2	21	236	3	7	1943	218
80	WEST-SOUTH RAMP	Municipal	0.510	2050	8	1676	366	23	65	18	1	20	230	3	7	1046	187
80	NORTH-WEST RAMP	Municipal	0.410	2780	9	1890	881	24	68	19	1	60	682	8	20	1140	361
80	SOUTH-WEST LOOP	Municipal	0.236	1940	7	1496	436	57	161	45	2	13	151	2	4	458	103
80	WEST-NORTH LOOP	Municipal	0.311	2710	9	1870	831	42	118	33	2	49	565	7	17	843	258
80	NORTH-EAST LOOP	Municipal	0.242	12400	51	10544	1805	100	282	79	4	104	1187	14	34	3001	437
80	EAST-SOUTH LOOP	Municipal	0.199	3120	13	2644	463	57	161	45	2	15	176	2	5	621	92
80	IA 965 INTERCHANGE	Municipal	1.539	52700	199	41158	11343	317	892	249	14	764	8751	104	253	81105	17457
80	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.361	7900	36	7467	397	58	164	46	2	10	112	1	3	2852	143
80	SOUTH-EAST RAMP	Municipal	0.261	2070	9	1817	245	34	97	27	1	7	75	1	2	540	64
80	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.379	7600	35	7244	321	44	123	34	2	9	105	1	3	2880	122
80	NORTH-WEST RAMP	Municipal	0.271	3450	16	3260	174	25	72	20	1	4	50	1	2	935	47
80	SOUTH-WEST LOOP	Municipal	0.261	3110	14	2959	137	11	32	9	0	7	74	1	2	812	36
80	NORTH-EAST LOOP	Municipal	0.278	3590	16	3382	191	22	62	17	1	7	78	1	2	998	53
80	1ST AVENUE INTERCHANGE AT
80	EAST LIMITS OF CORALVILLE	Municipal	2.356	52000	194	40297	11508	352	989	276	15	764	8754	104	253	122512	27113
80	EAST-NORTH EAST-SOUTH RAMP	Rural	0.017	5800	27	5500	273	34	95	26	1	9	104	1	3	99	5
80	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.169	5700	26	5405	269	33	93	26	1	9	102	1	3	963	45
80	EAST-NORTH EAST-SOUTH RAMP	Rural	0.056	5800	27	5500	273	34	95	26	1	9	104	1	3	325	15
80	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.217	6100	28	5778	294	37	103	29	2	10	110	1	3	1324	64
80	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.249	2850	12	2545	293	38	107	30	2	9	104	1	3	710	73
80	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.193	3350	14	2898	438	63	178	50	3	11	129	2	4	647	85
80	WEST LIMITS OF IOWA CITY	Rural	0.391	58300	225	46620	11455	324	911	254	14	770	8822	105	255	22795	4479
80	CO RD W66 & DUBUQUE ST INTCHG AT
80	EAST LIMITS OF IOWA CITY	Municipal	0.895	57700	223	46137	11340	320	901	252	14	763	8734	103	252	51642	10149
80	EAST-NORTH EAST-SOUTH RAMP	Rural	0.292	2550	12	2453	85	14	41	11	1	1	16	0	0	745	25
80	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.211	3060	14	2943	103	21	58	16	1	1	6	0	0	646	22
80	SOUTH-EAST RAMP CONNECTION	Municipal	0.118	1820	8	1762	50	10	29	8	0	0	2	0	0	215	6
80	WEST-SOUTH RAMP CONNECTION	Municipal	0.131	5800	27	5679	94	19	55	15	1	0	4	0	0	760	12
80	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.218	6400	30	6256	113	22	62	17	1	1	10	0	0	1395	25
80	NORTH-WEST SOUTH-WEST RAMP	Rural	0.298	6600	31	6457	112	21	60	17	1	1	12	0	0	1967	33
80	NORTH-EAST RAMP CONNECTION	Municipal	0.112	1250	6	1198	46	9	25	7	0	0	4	0	0	140	5
80	WEST-NORTH RAMP CONNECTION	Municipal	0.081	610	3	588	19	3	7	2	0	1	6	0	0	49	2
80	WEST LIMITS OF IOWA CITY	Rural	1.463	50900	190	39297	11413	314	884	247	13	770	8823	105	255	74467	16697
80	IA 1 INTERCHANGE	Municipal	0.634	50400	188	38915	11298	311	875	244	13	763	8735	103	252	31954	7163
80	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.249	1340	6	1236	98	9	25	7	0	4	50	1	2	334	24
80	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.342	1270	6	1203	61	5	13	4	0	3	35	0	1	434	21
80	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.249	8900	42	8693	166	19	54	15	1	6	68	1	2	2216	41
80	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.186	7700	36	7451	213	30	85	24	1	6	64	1	2	1432	40
80	NORTH-WEST RAMP	Municipal	0.112	3520	16	3419	84	13	37	10	1	2	20	0	0	394	9
80	SOUTH-WEST RAMP	Municipal	0.050	4180	19	4032	129	17	48	14	1	4	43	1	2	209	6
80	EAST LIMITS OF IOWA CITY	Municipal	0.916	36400	122	25200	11079	275	775	216	12	759	8688	103	251	33342	10148
80	CO RD F44 INTERCHANGE	Rural	2.101	36800	123	25486	11191	278	783	218	12	766	8775	104	254	77317	23512
80	EAST-NORTH EAST-SOUTH RAMP	Rural	0.193	1050	4	886	160	7	19	5	0	10	113	1	3	203	31
80	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	1280	5	1125	149	5	13	4	0	10	113	1	3	334	39
80	WEST-NORTH WEST-SOUTH RAMP	Rural	0.162	1340	6	1170	165	31	87	24	1	2	19	0	0	217	27
80	NORTH-WEST SOUTH-WEST RAMP	Rural	0.242	1320	5	1140	175	32	90	25	1	2	23	0	0	319	42
80	WEST LINE OF CEDAR COUNTY	Rural	4.179	36500	122	25218	11161	227	638	178	10	782	8960	106	258	152534	46642
	ROUTE SUMMARY - RURAL		18.937	29911												566433	165964
	ROUTE SUMMARY - MUNICIPAL		17.090	24460												418016	93707