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	88,738	100	79,908	100	25,230	100	1,167	17.9	-	17.6	-	26.8	-	12.2
Less than 50 lbs	13,125	14.8	245	0.3	241	1.0	1,320	13.4	2.1	17.3	0.2	28.9	1.1	10.4
50 - 99 lbs	2,664	3.0	102	0.1	34	0.1	326	15.9	0.6	17.0	0.1	11.4	0.1	14.8
100 - 499 lbs	5,552	6.3	574	0.7	131	0.5	236	10.4	0.9	12.2	0.2	16.4	0.2	12.7
500 - 749 lbs	1,658	1.9	264	0.3	63	0.2	242	6.1	0.2	7.5	0.1	14.4	0.1	15.2
750 - 999 lbs	1,061	1.2	206	0.3	44	0.2	214	14.6	0.3	13.6	0.1	11.3	0.1	20.9
1,000 - 9,999 lbs	11,299	12.7	4,097	5.1	786	3.1	196	6.3	1.7	8.0	1.5	8.5	1.4	8.3
10,000 - 49,999 lbs	28,461	32.1	35,757	44.7	7,098	28.1	182	20.1	2.3	23.2	5.4	17.2	6.9	20.3
50,000 - 99,999 lbs	5,048	5.7	12,890	16.1	1,198	4.7	97	21.5	1.6	19.3	3.3	13.5	1.4	21.8
More than 100,000 lbs	S	S	25,774	32.3	15,637	62.0	710	S	S	32.0	6.5	38.7	9.8	15.1

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	69,906	100	76,573	100	22,351	100	200	18.7	-	18.1	-	26.6	-	14.2
Less than 50 lbs	3,058	4.4	63	0.1	10	-	241	18.7	0.7	22.7	-	14.7	-	20.5
50 - 99 lbs	1,218	1.7	66	0.1	7	-	100	18.8	0.3	20.8	-	15.9	-	16.0
100 - 499 lbs	4,039	5.8	504	0.7	94	0.4	177	12.6	1.0	12.3	0.2	19.5	0.2	13.9
500 - 749 lbs	1,421	2.0	245	0.3	52	0.2	216	7.8	0.2	7.1	0.1	16.4	0.1	17.6
750 - 999 lbs	1,009	1.4	197	0.3	40	0.2	202	15.6	0.3	13.1	0.1	11.3	0.1	21.0
1,000 - 9,999 lbs	10,638	15.2	4,038	5.3	737	3.3	184	6.6	2.2	8.1	1.5	8.8	1.6	7.9
10,000 - 49,999 lbs	26,070	37.3	35,297	46.1	6,668	29.8	174	16.0	2.9	23.6	5.5	16.1	7.6	21.2
50,000 - 99,999 lbs	5,013	7.2	12,831	16.8	1,180	5.3	96	21.1	1.8	19.4	3.4	13.6	1.5	22.1
More than 100,000 lbs	S	S	23,333	30.5	13,564	60.7	673	S	S	34.6	6.6	40.2	9.9	16.2

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	50,770	100	54,008	100	8,879	100	163	8.7	-	20.6	-	13.2	-	17.0
Less than 50 lbs	2,386	4.7	61	0.1	8	0.1	162	26.0	0.9	23.4	-	20.7	-	29.2
50 - 99 lbs	1,115	2.2	66	0.1	6	0.1	93	21.6	0.4	20.8	0.1	16.4	-	15.7
100 - 499 lbs	3,826	7.5	502	0.9	91	1.0	172	11.6	1.0	12.2	0.3	20.0	0.3	14.7
500 - 749 lbs	1,385	2.7	245	0.5	51	0.6	215	8.0	0.2	7.1	0.1	16.7	0.1	17.8
750 - 999 lbs	941	1.9	195	0.4	38	0.4	194	17.2	0.4	13.3	0.1	11.8	0.1	20.0
1,000 - 9,999 lbs	10,423	20.5	3,897	7.2	724	8.2	185	6.5	1.9	7.7	1.5	8.8	1.5	7.6
10,000 - 49,999 lbs	24,412	48.1	34,264	63.4	6,437	72.5	173	14.8	3.8	23.3	4.1	16.6	3.0	20.9
50,000 - 99,999 lbs	4,811	9.5	12,461	23.1	1,141	12.9	96	21.4	1.9	18.8	4.0	14.0	2.5	24.5
More than 100,000 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S

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	27,780	100	17,959	100	7,080	100	652	12.3	-	18.4	-	14.4	-	12.0
Less than 50 lbs	1,350	4.9	7	-	6	0.1	790	43.0	1.7	19.9	-	26.8	-	19.5
50 - 99 lbs	487	1.8	7	-	4	0.1	600	36.7	0.6	13.6	-	19.6	-	12.3
100 - 499 lbs	1,638	5.9	88	0.5	66	0.9	751	17.8	1.0	13.5	0.1	21.7	0.3	10.8
500 - 749 lbs	627	2.3	55	0.3	42	0.6	795	12.6	0.4	11.4	0.1	18.6	0.2	17.3
750 - 999 lbs	457	1.6	51	0.3	30	0.4	585	13.8	0.3	12.0	0.1	13.5	0.1	11.6
1,000 - 9,999 lbs	5,055	18.2	935	5.2	529	7.5	588	10.6	2.7	10.1	1.3	9.4	1.5	8.9
10,000 - 49,999 lbs	15,643	56.3	11,981	66.7	5,550	78.4	455	19.1	4.2	21.8	3.1	17.2	3.0	13.6
50,000 - 99,999 lbs	2,311	8.3	4,490	25.0	646	9.1	145	31.0	2.2	19.2	2.5	16.7	2.1	39.4
More than 100,000 lbs	S	S	S	S	S	S	663	S	S	S	S	S	S	29.8

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	22,990	100	36,049	100	1,799	100	45	7.6	-	25.2	-	15.6	-	7.3
Less than 50 lbs	1,036	4.5	53	0.1	2	0.1	35	10.3	0.5	26.6	0.1	21.0	-	18.5
50 - 99 lbs	628	2.7	59	0.2	2	0.1	34	18.5	0.5	22.6	0.1	20.2	-	5.9
100 - 499 lbs	2,188	9.5	414	1.1	25	1.4	54	11.5	1.4	13.1	0.5	18.9	0.3	12.6
500 - 749 lbs	758	3.3	190	0.5	9	0.5	48	11.4	0.3	9.4	0.2	26.8	0.2	14.9
750 - 999 lbs	483	2.1	145	0.4	8	0.5	57	23.0	0.5	17.1	0.1	22.3	0.1	21.6
1,000 - 9,999 lbs	5,368	23.3	2,962	8.2	195	10.8	70	9.4	2.0	8.3	2.0	9.9	2.2	7.7
10,000 - 49,999 lbs	8,768	38.1	22,283	61.8	886	49.3	38	13.0	3.9	28.7	4.8	16.1	4.2	25.5
50,000 - 99,999 lbs	2,500	10.9	7,971	22.1	495	27.5	65	17.6	2.2	22.5	5.0	21.0	5.4	24.2
More than 100,000 lbs	S	S	S	S	S	S	95	S	S	S	S	S	S	24.2

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	S	S	17,757	100	13,247	100	724	S	S	46.4	-	41.7	-	23.9
Less than 50 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	S	S	-	-	S	S	S	S	S	13.1	12.7	S	S	S
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	S	S	S	S	S	S	S	S
1,000 - 9,999 lbs	15	0.1	S	S	S	S	1,493	41.2	10.8	S	S	S	S	29.1
10,000 - 49,999 lbs	S	S	S	S	S	S	1,032	S	S	S	S	S	S	33.0
50,000 - 99,999 lbs	30	0.2	128	0.7	S	S	248	40.4	0.2	25.7	1.5	S	S	39.5
More than 100,000 lbs	S	S	17,410	98.0	13,025	98.3	707	S	S	45.9	9.1	40.7	10.1	15.6

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	1,212	100	10	100	13	100	1,349	18.4	-	19.4	-	12.9	-	7.1
Less than 50 lbs	672	55.4	2	17.5	2	19.4	1,349	34.5	9.7	29.2	8.6	26.7	9.3	9.0
50 - 99 lbs	103	8.5	-	3.3	-	3.6	1,378	41.2	4.4	35.3	1.1	37.9	1.0	7.8
100 - 499 lbs	212	17.5	2	18.8	S	S	1,348	33.4	5.5	42.7	6.9	S	S	8.8
500 - 749 lbs	36	3.0	1	5.5	1	4.1	920	24.1	1.4	38.3	2.9	31.2	2.2	19.2
750 - 999 lbs	67	5.6	S	S	S	S	1,838	37.3	4.4	S	S	S	S	11.0
1,000 - 9,999 lbs	100	8.2	3	27.1	4	29.1	1,323	23.9	7.0	32.1	10.3	39.9	11.0	14.2
10,000 - 49,999 lbs	S	S	S	S	S	S	597	S	S	S	S	S	S	0.4
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Pipeline⁵

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	3,236	100	4,797	100	S	S	S	31.9	-	28.9	-	S	S	S
Less than 50 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50 - 99 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
100 - 499 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
500 - 749 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
750 - 999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
1,000 - 9,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	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	S	S	S	S	S	S	S	S	S	S	S	S	S	S
More than 100,000 lbs	2,372	73.3	3,606	75.2	S	S	S	24.4	10.7	22.2	10.3	S	S	S

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	15,993	100	2,741	100	2,530	100	1,436	15.2	-	36.1	-	30.6	-	6.0
Less than 50 lbs	9,865	61.7	176	6.4	230	9.1	1,449	18.8	6.5	25.4	8.8	30.5	9.8	5.9
50 - 99 lbs	1,374	8.6	31	1.1	27	1.1	838	15.6	2.2	16.1	1.4	13.7	1.6	6.0
100 - 499 lbs	1,410	8.8	50	1.8	36	1.4	736	18.1	1.9	18.2	3.1	17.2	2.5	10.8
500 - 749 lbs	215	1.3	14	0.5	10	0.4	718	29.0	0.3	35.5	0.6	45.1	0.3	29.1
750 - 999 lbs	38	0.2	S	S	4	0.2	S	28.7	0.1	S	S	39.9	0.1	S
1,000 - 9,999 lbs	S	S	S	S	S	S	2,818	S	S	S	S	S	S	17.5
10,000 - 49,999 lbs	S	S	52	1.9	S	S	2,863	S	S	41.4	1.7	S	S	16.9
50,000 - 99,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
More than 100,000 lbs	S	S	2,404	87.7	2,073	81.9	1,259	S	S	41.2	10.9	37.5	11.7	9.1

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	12,878	100	275	100	302	100	1,436	16.2	-	19.1	-	24.4	-	6.1
Less than 50 lbs	9,865	76.6	176	64.2	229	75.9	1,449	18.8	3.0	25.4	5.2	30.5	4.8	5.9
50 - 99 lbs	1,373	10.7	31	11.4	27	8.8	837	15.6	2.1	16.2	2.1	13.7	2.3	6.0
100 - 499 lbs	1,404	10.9	50	18.2	36	11.9	733	18.1	1.8	18.2	3.1	17.0	3.3	10.9
500 - 749 lbs	203	1.6	13	4.8	S	S	653	30.5	0.8	36.5	1.3	S	S	34.3
750 - 999 lbs	26	0.2	4	1.3	S	S	S	34.3	0.4	45.3	2.9	S	S	S
1,000 - 9,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
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	S	S	2,448	100	2,149	100	1,432	S	S	41.7	-	37.7	-	7.8
Less than 50 lbs	S	S	S	S	S	S	2,416	S	S	S	S	S	S	18.5
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	1,537	S	S	S	S	S	S	6.9
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	S	S	S	S	S	S	S	S
1,000 - 9,999 lbs	S	S	S	S	S	S	1,556	S	S	S	S	S	S	26.0
10,000 - 49,999 lbs	S	S	41	1.7	72	3.3	1,787	S	S	37.8	3.2	37.9	4.6	16.0
50,000 - 99,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
More than 100,000 lbs	S	S	2,404	98.2	2,073	96.5	1,259	S	S	41.2	2.5	37.5	4.5	9.1

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	S	S	10	100	33	100	2,856	S	S	44.3	-	45.8	-	8.2
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	S	S	S	S	S	S	S	S
100 - 499 lbs	2	1.6	-	0.9	-	0.6	2,184	30.4	7.7	41.2	13.8	39.8	14.0	1.9
500 - 749 lbs	8	8.2	-	4.0	1	2.7	2,293	41.6	10.0	39.8	10.5	33.4	10.3	16.4
750 - 999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
1,000 - 9,999 lbs	S	S	S	S	S	S	3,312	S	S	S	S	S	S	14.0
10,000 - 49,999 lbs	S	S	S	S	S	S	3,117	S	S	S	S	S	S	11.9
50,000 - 99,999 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-
More than 100,000 lbs	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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	7,100	S	S	S	S	S	S	30.3
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	S	S	S	S	S	S	S	S	S	S	S	S	S	S
750 - 999 lbs	S	S	S	S	S	S	7,896	S	S	S	S	S	S	-
1,000 - 9,999 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
10,000 - 49,999 lbs	S	S	S	S	S	S	6,260	S	S	S	S	S	S	39.7
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	S	S	279	S	S	S	S	S	S	22.6
Less than 50 lbs	201	7.1	7	1.1	1	0.3	318	34.3	6.1	29.5	3.2	41.6	7.0	25.5
50 - 99 lbs	73	2.6	4	0.7	-	0.1	S	42.1	5.7	34.9	3.4	47.4	3.0	S
100 - 499 lbs	S	S	S	S	S	S	S	S	S	S	S	S	S	S
500 - 749 lbs	22	0.8	S	S	S	S	S	44.2	0.7	S	S	S	S	S
750 - 999 lbs	15	0.5	5	0.8	S	S	S	36.9	5.3	36.5	2.8	S	S	S
1,000 - 9,999 lbs	508	17.9	52	8.7	S	S	534	41.9	12.8	40.0	10.2	S	S	33.0
10,000 - 49,999 lbs	S	S	S	S	S	S	792	S	S	S	S	S	S	48.8
50,000 - 99,999 lbs	S	S	S	S	S	S	309	S	S	S	S	S	S	35.2
More than 100,000 lbs	1	-	S	S	-	0.1	S	20.9	0.1	S	S	24.7	0.6	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