Table TC-203 – Office of Highway Policy Information (OHPI) – FHWA

Highway Statistics Series

Highway Statistics 2011

Printable Excel Version [52 KB]
Printable PDF Version [33 KB]

To view PDF files, you can use the Acrobat® Reader®.
To view XLS files, you can use the Excel Viewer

Percentage Distribution of Traffic Volumes and Loadings on the Interstate System 1/

December 2012
Table TC-203

YEAR	PASSENGER CARS, BUSES AND LIGHT SINGLE-UNIT TRUCKS		HEAVY SINGLE-UNIT TRUCKS		ALL COMBINATION TRUCKS
YEAR	VOLUMES	LOADINGS	VOLUMES	LOADINGS	VOLUMES	LOADINGS
RURAL
1990	77	3	4	7	18	89
1991	74	3	4	6	22	91
1992	76	4	4	5	21	91
1993	77	4	4	6	20	91
1994	80	2	4	9	16	89
1995	79	3	4	7	18	91
1996	78	3	4	7	19	89
1997	76	3	4	8	20	89
1998	79	2	4	7	17	91
1999	80	3	4	8	16	89
2000	80	3	4	9	15	88
2001	78	2	4	6	17	91
2002	79	3	4	8	17	90
2003	79	2	4	8	16	90
2004	79	2	5	7	16	90
2005	79	2	4	7	16	90
2006	80	2	4	6	16	92
2007	79	2	4	7	17	90
2008	77	2	5	7	18	91
2009	79	2	4	7	17	91
2010	79	2	4	7	16	91
2011	79	2	4	7	17	91
URBAN
1990	90	6	4	16	6	78
1991	89	7	3	16	7	77
1992	89	6	3	17	8	77
1993	90	4	3	19	7	77
1994	92	5	3	20	5	75
1995	89	5	4	16	7	79
1996	91	7	3	19	5	74
1997	90	4	4	18	6	78
1998	91	5	3	21	5	74
1999	90	5	4	16	6	80
2000	90	5	4	16	6	79
2001	90	5	3	15	6	80
2002	89	3	4	15	7	82
2003	91	4	4	15	6	80
2004	91	4	4	16	5	80
2005	90	4	4	16	6	80
2006	89	4	4	14	7	82
2007	88	4	4	15	8	81
2008	88	5	4	17	7	79
2009	90	4	3	18	7	78
2010	91	5	3	18	6	77
2011	91	6	3	17	6	77

1/ Based on data from the Truck Weight Study which are collected by the States for varying time periods each year and are not adjusted to typify annual averages. Loadings are based on equivalent axle loads which are the damage to a pavement caused by a vehicle axle relative to an 80 kN (18,000 lb) force which represents a standard single axle.

Return to top

Page last modified on November 7, 2014