Table 4. Shipment Characteristics by Mode of Transportation and Shipment Size for Metropolitan Area of Origin: 2007

Tuesday, July 3, 2012

Estimates are based on data from the 2007 Commodity Flow Survey. Because of rounding, estimates may not be additive.

All Modes

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	30,337	100	22,762	100	5,281	100	832	13.9	-	12.9	-	12.6	-	10.9
Less than 50 lbs	4,169	13.7	91	0.4	86	1.6	1,027	14.4	3.2	14.8	0.1	32.1	0.3	9.8
50 - 99 lbs	1,400	4.6	67	0.3	34	0.7	505	14.2	1.3	15.5	0.1	15.3	0.2	14.8
100 - 499 lbs	4,009	13.2	340	1.5	162	3.1	471	18.0	1.9	12.7	0.3	21.8	0.6	14.3
500 - 749 lbs	1,482	4.9	123	0.5	55	1.0	442	29.2	0.8	13.3	0.2	19.4	0.3	16.0
750 - 999 lbs	924	3.0	118	0.5	52	1.0	440	29.0	0.9	15.3	0.2	15.6	0.3	8.7
1,000 - 9,999 lbs	7,870	25.9	1,585	7.0	452	8.5	298	36.3	4.9	8.6	1.4	11.6	1.4	8.1
10,000 - 49,999 lbs	7,980	26.3	9,393	41.3	2,272	43.0	254	27.7	3.8	13.9	3.0	8.2	5.4	15.5
50,000 - 99,999 lbs	2,256	7.4	7,762	34.1	965	18.3	129	21.8	1.6	16.9	2.9	19.2	2.3	16.2
More than 100,000 lbs	247	0.8	3,283	14.4	1,203	22.8	462	47.5	0.4	26.2	2.4	35.9	5.7	27.0

Single modes

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	23,210	100	20,420	100	4,562	100	380	17.8	-	11.3	-	11.6	-	10.0
Less than 50 lbs	737	3.2	20	0.1	9	0.2	573	11.5	1.0	11.6	-	22.2	0.1	17.1
50 - 99 lbs	351	1.5	26	0.1	6	0.1	202	18.4	0.7	12.3	-	24.2	-	21.5
100 - 499 lbs	2,306	9.9	244	1.2	72	1.6	281	6.8	2.1	13.7	0.2	12.2	0.4	12.2
500 - 749 lbs	1,208	5.2	119	0.6	49	1.1	401	29.8	0.9	12.9	0.2	20.5	0.2	18.8
750 - 999 lbs	898	3.9	116	0.6	48	1.1	416	29.9	1.3	15.9	0.2	17.3	0.3	8.6
1,000 - 9,999 lbs	7,633	32.9	1,508	7.4	421	9.2	299	36.4	5.6	7.8	1.3	13.1	1.5	7.9
10,000 - 49,999 lbs	7,620	32.8	8,689	42.5	2,093	45.9	242	29.1	3.8	12.8	3.1	7.4	5.2	12.9
50,000 - 99,999 lbs	2,240	9.7	6,821	33.4	957	21.0	145	22.0	2.0	16.5	3.5	19.6	2.5	12.8
More than 100,000 lbs	S	S	2,878	14.1	907	19.9	412	S	S	29.1	2.8	35.9	5.1	22.4

Truck⁴

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	22,721	100	19,536	100	3,854	100	288	18.5	-	11.8	-	10.1	-	10.7
Less than 50 lbs	495	2.2	17	0.1	4	0.1	326	10.8	0.7	11.2	-	33.9	-	21.7
50 - 99 lbs	294	1.3	26	0.1	5	0.1	180	18.6	0.6	12.1	-	24.9	-	21.6
100 - 499 lbs	2,211	9.7	243	1.2	70	1.8	272	7.4	2.0	13.8	0.2	12.7	0.3	12.2
500 - 749 lbs	1,206	5.3	119	0.6	48	1.3	400	29.8	0.9	12.8	0.2	20.6	0.2	18.8
750 - 999 lbs	886	3.9	115	0.6	47	1.2	402	30.5	1.3	15.9	0.2	16.7	0.3	8.3
1,000 - 9,999 lbs	7,606	33.5	1,503	7.7	411	10.7	295	36.4	5.6	7.8	1.3	12.6	1.6	7.8
10,000 - 49,999 lbs	7,612	33.5	8,688	44.5	2,093	54.3	242	29.1	3.7	12.8	3.2	7.4	3.7	12.9
50,000 - 99,999 lbs	2,240	9.9	6,815	34.9	953	24.7	145	22.0	2.0	16.5	3.5	19.5	3.2	12.9
More than 100,000 lbs	S	S	2,011	10.3	S	S	150	S	S	39.1	3.2	S	S	36.9

For-hire truck

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	16,464	100	8,802	100	2,929	100	682	24.2	-	19.5	-	10.1	-	11.0
Less than 50 lbs	195	1.2	5	0.1	4	0.1	851	29.4	1.0	28.5	-	32.9	-	16.0
50 - 99 lbs	145	0.9	5	0.1	4	0.1	701	31.4	0.9	18.6	-	28.0	-	20.3
100 - 499 lbs	1,346	8.2	91	1.0	56	1.9	620	14.0	2.0	19.5	0.2	11.9	0.3	14.0
500 - 749 lbs	828	5.0	57	0.6	44	1.5	777	42.9	1.0	17.3	0.2	23.4	0.4	13.3
750 - 999 lbs	760	4.6	57	0.6	43	1.5	753	33.9	1.9	24.1	0.2	17.9	0.3	12.3
1,000 - 9,999 lbs	6,012	36.5	517	5.9	310	10.6	601	46.1	7.1	9.5	1.4	12.3	2.2	10.4
10,000 - 49,999 lbs	5,456	33.1	3,042	34.6	1,585	54.1	549	40.6	5.1	16.9	2.8	9.2	3.8	12.5
50,000 - 99,999 lbs	1,700	10.3	4,029	45.8	745	25.4	192	24.2	3.1	13.6	3.5	19.7	3.0	22.6
More than 100,000 lbs	21	0.1	S	S	S	S	S	45.6	0.6	S	S	S	S	S

Private truck

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	6,257	100	10,734	100	925	100	68	11.7	-	14.8	-	19.9	-	7.9
Less than 50 lbs	300	4.8	12	0.1	1	0.1	51	15.3	0.9	11.6	-	18.5	-	13.9
50 - 99 lbs	148	2.4	21	0.2	1	0.1	53	14.3	0.4	15.0	-	22.2	-	13.9
100 - 499 lbs	865	13.8	152	1.4	14	1.5	80	12.0	2.2	16.2	0.4	37.0	1.1	12.9
500 - 749 lbs	378	6.0	62	0.6	4	0.4	64	36.8	1.3	17.2	0.2	23.4	0.2	13.1
750 - 999 lbs	126	2.0	58	0.5	4	0.4	61	13.2	0.2	12.7	0.1	19.1	0.1	24.4
1,000 - 9,999 lbs	1,594	25.5	986	9.2	100	10.8	84	14.1	1.9	8.5	1.9	21.0	2.5	12.9
10,000 - 49,999 lbs	2,156	34.5	5,646	52.6	508	54.9	95	16.0	3.3	15.8	6.1	22.5	6.4	24.7
50,000 - 99,999 lbs	540	8.6	2,786	26.0	208	22.5	S	29.1	2.5	30.3	5.6	30.5	6.1	S
More than 100,000 lbs	S	S	1,012	9.4	86	9.2	S	S	S	30.3	2.1	48.9	2.9	S

Rail

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	45	100	874	100	688	100	829	33.1	-	29.8	-	29.9	-	23.4
Less than 50 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
500 - 749 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750 - 999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1,000 - 9,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
10,000 - 49,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50,000 - 99,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
More than 100,000 lbs	45	99.8	867	99.3	684	99.5	836	33.1	0.1	30.0	0.7	30.2	0.7	23.2

Air (incl truck and air)

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	443	100	11	100	19	100	1,693	24.8	-	37.1	-	47.6	-	6.5
Less than 50 lbs	241	54.4	3	24.8	4	22.9	1,712	33.9	8.6	38.7	10.7	43.3	11.0	7.5
50 - 99 lbs	S	S	1	5.3	S	S	1,208	S	S	45.7	2.3	S	S	16.7
100 - 499 lbs	S	S	1	10.9	2	9.6	1,571	S	S	30.1	6.3	27.5	9.2	11.1
500 - 749 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
750 - 999 lbs	S	S	S	S	S	S	2,552	S	S	S	S	S	S	6.4
1,000 - 9,999 lbs	S	S	S	S	S	S	1,438	S	S	S	S	S	S	33.0
10,000 - 49,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Multiple modes

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	6,413	100	392	100	670	100	1,159	21.1	-	20.6	-	28.0	-	9.5
Less than 50 lbs	3,366	52.5	69	17.6	77	11.5	1,190	17.6	4.0	19.7	3.0	36.2	2.8	9.4
50 - 99 lbs	997	15.6	36	9.1	29	4.3	804	15.1	3.2	22.8	3.3	20.3	2.5	19.8
100 - 499 lbs	1,596	24.9	79	20.1	90	13.4	1,095	42.5	3.6	26.5	5.1	40.2	4.7	9.8
500 - 749 lbs	S	S	4	0.9	S	S	1,794	S	S	35.5	0.7	S	S	17.2
750 - 999 lbs	24	0.4	2	0.6	4	0.5	1,527	34.3	0.2	34.7	0.3	39.8	0.3	22.0
1,000 - 9,999 lbs	S	S	9	2.3	25	3.7	2,679	S	S	42.6	2.5	43.1	6.5	3.6
10,000 - 49,999 lbs	S	S	62	15.9	157	23.4	2,600	S	S	26.0	9.3	26.6	12.6	3.6
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	7	0.1	131	33.4	283	42.2	2,161	33.8	0.2	32.2	19.8	31.4	18.4	11.6

Parcel, U.S.P.S. or courier

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	6,244	100	188	100	201	100	1,156	21.7	-	18.2	-	32.0	-	9.5
Less than 50 lbs	3,366	53.9	69	36.7	77	38.1	1,190	17.6	4.3	19.7	4.2	36.2	4.4	9.4
50 - 99 lbs	997	16.0	36	19.1	29	14.3	804	15.1	3.2	22.8	3.0	20.3	3.1	19.8
100 - 499 lbs	1,585	25.4	77	41.1	86	42.8	1,072	42.9	3.7	25.7	5.2	38.4	5.1	9.5
500 - 749 lbs	S	S	3	1.8	S	S	1,773	S	S	36.6	0.7	S	S	17.4
750 - 999 lbs	24	0.4	2	1.3	4	1.8	1,527	34.3	0.3	34.7	0.5	39.8	1.6	22.0
1,000 - 9,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
10,000 - 49,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Truck and rail

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	28	100	123	100	224	100	1,373	33.1	-	36.2	-	30.3	-	21.5
Less than 50 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
500 - 749 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
750 - 999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1,000 - 9,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
10,000 - 49,999 lbs	24	83.5	S	S	S	S	2,339	34.3	13.3	S	S	S	S	2.7
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	S	S	85	69.4	135	60.2	1,558	S	S	48.7	15.5	47.3	20.0	18.6

Truck and water

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	136	100	35	100	96	100	2,767	46.3	-	27.5	-	27.9	-	2.0
Less than 50 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50 - 99 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
100 - 499 lbs	S	S	S	S	S	S	2,850	S	S	S	S	S	S	15.0
500 - 749 lbs	S	S	-	0.4	-	0.3	2,448	S	S	43.7	4.4	32.6	3.8	16.1
750 - 999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1,000 - 9,999 lbs	S	S	S	S	S	S	2,694	S	S	S	S	S	S	1.1
10,000 - 49,999 lbs	S	S	25	70.4	68	70.5	2,754	S	S	25.1	14.6	26.0	14.5	1.1
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Rail and water

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	3	100	46	100	148	100	3,240	39.3	-	39.4	-	38.9	-	0.6
Less than 50 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
500 - 749 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750 - 999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1,000 - 9,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
10,000 - 49,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	3	100.0	46	100.0	148	100.0	3,240	39.3	-	39.4	-	38.9	-	0.6

Other multiple modes

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Less than 50 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
500 - 749 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750 - 999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
1,000 - 9,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
10,000 - 49,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Other and unknown modes

Shipment Weight	Value		Tons		Ton-miles²		Average miles per shipment	Value		Tons		Ton-miles		Average miles per shipment CV
Shipment Weight	2007 (million $)	Percent of total	2007 (thousands)	Percent of total	2007 (millions)	Percent of total	Average miles per shipment	CV³	Standard Error of %	CV	Standard Error of %	CV	Standard Error of %	Average miles per shipment CV
Total	S	S	S	S	49	100	S	S	S	S	S	39.6	-	S
Less than 50 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
50 - 99 lbs	S	S	S	S	S	S	15	S	S	S	S	S	S	16.1
100 - 499 lbs	S	S	S	S	S	S	34	S	S	S	S	S	S	31.1
500 - 749 lbs	1	0.2	-	-	-	-	S	33.8	0.4	26.0	0.8	48.6	-	S
750 - 999 lbs	S	S	S	S	-	0.1	S	S	S	S	S	43.7	3.8	S
1,000 - 9,999 lbs	199	27.9	S	S	6	11.5	S	46.3	9.4	S	S	28.2	18.0	S
10,000 - 49,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
50,000 - 99,999 lbs	15	2.1	S	S	S	S	8	49.3	16.3	S	S	S	S	31.8
More than 100,000 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S

KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit shown; thus, it has been rounded to zero.

¹ Commodity Flow Survey (CFS) geographic areas were drawn from a subset of Combined Statistical Areas (CSAs) and Metropolitan Statistical Areas (MeSAs) as defined by the Office of Management and Budget (OMB). However, CFS metropolitan areas are divided into their state parts when they include more than one state. In addition, the CFS also utilizes a unique geography referred to as, "remainder of state," to represent those areas of a state not contained within a separately published metropolitan area for the CFS (as opposed to not part of any Core-Based Statistical Area (CBSA) as defined by OMB). Because of the differences in the CFS geography, as compared to OMB defined geography, caution should be exercised when comparing CFS estimates to other estimates of similar geography.
² Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
³ Coefficient of Variation.
⁴ ""Truck"" as a single mode includes any shipment that was made by private truck only, by for-hire truck only, or by a combination of private and for-hire truck.
⁵ Estimates for pipeline exclude shipments of crude petroleum.

NOTES: Value-of-shipment estimates are reported in current prices. Estimated measures of sampling variability for each estimate known as coefficients of variation (CV) are also provided in these tables. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/
Rows are not shown if all cells for that particular mode have no data. For example, since Denver-Aurora-Boulder by "Water" has no data for any shipment weight group, the entire mode of "Water" for that area was removed from this table. However, if a mode has at least one row of data for one of the shipment weight groups, then the entire mode is shown even though there may be rows absent of data within that mode. For example, Denver-Aurora-Boulder by "Other and unknown modes" has a row absent of data for the shipment size of "More than 100,000 lbs" but does have data for the other shipment weight groups under that mode so it will be shown in its entirety.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation Commodity Flow Survey, December 2009.

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Table 4. Shipment Characteristics by Mode of Transportation and Shipment Size for Metropolitan Area of Origin: 2007