CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)
Geographic Area: Working in Black Hawk County, Iowa
TABLE 1. SELECTED CHARACTERISTICS BY PLACE OF WORK, 1990 and 2000
Selected Characteristics (Universe: All Workers)		1990		2000		Change 1990 to 2000
Selected Characteristics (Universe: All Workers)		Number	Percent	Number	Percent	Number	Percent
Workers 16 years or over		61,749	100	70,895	100	9,146	14.8
Sex
Male		33,472	54.2	36,005	50.8	2,533	7.6
Female		28,277	45.8	34,890	49.2	6,613	23.4
Mode to work
Drove alone		50,095	81.1	59,150	83.4	9,055	18.1
2-person carpool		4,353	7.0	5,180	7.3	827	19.0
3-or-more-person carpool		908	1.5	985	1.4	77	8.5
Bus or trolley bus		434	0.7	425	0.6	-9	-2.1
All other transit¹		0	0.0	10	0.0	10	**
Bicycle or walked		3,550	5.7	3,005	4.2	-545	-15.4
Taxicab, motorcycle, or other mode		371	0.6	300	0.4	-71	-19.1
Worked at home		2,038	3.3	1,835	2.6	-203	-10.0
Travel time to work (Universe = Workers who did not work at home)
Less than 5		3,151	5.3	2,940	4.3	-211	-6.7
5 to 9		10,797	18.1	12,165	17.6	1,368	12.7
10 to 14		13,587	22.8	16,700	24.2	3,113	22.9
15 to 19		12,190	20.4	14,235	20.6	2,045	16.8
20 to 29		11,194	18.7	12,275	17.8	1,081	9.7
30 to 44		5,661	9.5	6,685	9.7	1,024	18.1
45- 59		1,489	2.5	1,965	2.8	476	32.0
60 or more		1,642	2.7	2,100	3.0	458	27.9
Mean travel time (minutes)		16.9	(X)	17.8	(X)	0.9	(X)
Median travel time (minutes)		16.0	(X)	15.2	(X)	-0.8	(X)

TABLE 2. MODE TO WORK BY TRAVEL TIME, 2000
(Universe = Workers who did not work at home)
	Mean travel time (mins.)	Total	Less than 10 minutes	10 to 19 minutes	20 to 29 minutes	30 to 44 minutes	45 -59 minutes	60 or more minutes
Total	17.8	69,060	15,105	30,935	12,275	6,685	1,965	2,100
Row percent		100	21.9	44.8	17.8	9.7	2.8	3.0
Column percent		100	100	100	100	100	100	100
Drove alone	17.8	59,150	12,175	27,435	10,620	5,655	1,625	1,650
Row percent		100	20.6	46.4	18.0	9.6	2.7	2.8
Column percent		85.7	80.6	88.7	86.5	84.6	82.7	78.6
2-person carpool	20.4	5,180	770	2,095	1,195	685	245	180
Row percent		100	14.9	40.4	23.1	13.2	4.7	3.5
Column percent		7.5	5.1	6.8	9.7	10.2	12.5	8.6
3+ carpool	24.5	985	139	420	155	128	43	90
Row percent		100	14.1	42.6	15.7	13.0	4.4	9.1
Column percent		1.4	0.9	1.4	1.3	1.9	2.2	4.3
Bus or trolley bus	29.8	425	25	85	124	119	30	40
Row percent		100	5.9	20.0	29.2	28.0	7.1	9.4
Column percent		0.6	0.2	0.3	1.0	1.8	1.5	1.9
All other transit¹	50.0	10	0	0	4	0	0	4
Row percent		100	0.0	0.0	0.0	0.0	0.1	0.1
Column percent		0.0	0.0	0.0	0.0	0.0	0.0	0.2
Bicycle or walked	9.5	3,005	1,940	805	90	65	10	95
Row percent		100	64.6	26.8	3.0	2.2	0.3	3.2
Column percent		4.4	12.8	2.6	0.7	1.0	0.5	4.5
All other modes¹	27.2	300	50	90	90	34	4	34
Row percent		100	16.7	30.0	30.0	11.3	1.3	11.3
Column percent		0.4	0.3	0.3	0.7	0.5	0.2	1.6
Notes:
1. See notes1.htm
2. Workers-at-work shown here differs from local employment in many ways. For more information, please read notes2.htm

CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)
Geographic Area: Working in Black Hawk County, Iowa
TABLE 3. MODE TO WORK BY VEHICLES AVAILABLE IN HOUSEHOLDS
Mode to Work (Universe = Workers living in households)				Workers living in households…
Mode to Work (Universe = Workers living in households)				Total	Without a vehicle	With 1 vehicle	With 2+ vehicles
Total				68,825	1,845	12,225	54,750
Drove alone				58,525	1,020	9,825	47,680
2-person carpool				5,140	265	1,345	3,525
3-or-more-person carpool				980	95	220	660
Bus or trolley bus				305	145	85	70
Streetcar, trolley car, subway, or elevated, Railroad or Ferryboat				10	0	4	4
Bicycle or walked				1,770	235	440	1,095
Taxicab, motorcycle or other means				285	35	80	170
Worked at Home				1,815	55	220	1,535

TABLE 4. SEX OF WORKER BY INDUSTRY¹ AND OCCUPATON¹
(Universe = All Workers)				All Workers	Sex
(Universe = All Workers)				All Workers	Male	Female
Workers 16 years and over				70,895	36,005	34,890
Industry
Agriculture, forestry, fishing and hunting and mining				790	620	165
Construction				3,810	3,570	240
Manufacturing				13,560	10,320	3,240
Wholesale trade				2,535	1,810	725
Retail trade				9,130	4,260	4,875
Transportation and warehousing and utilities				2,830	1,935	895
Information				1,635	770	865
Finance, insurance, real estate and rental and leasing				4,115	1,410	2,700
Profess., scientific, management, administrative, waste management				5,040	2,455	2,585
Educational, health and social services				17,010	3,880	13,130
Arts, entertainment, recreation, accommodation and food services				5,065	2,275	2,790
Other services (except public administration)				3,250	1,485	1,765
Public administration				2,080	1,160	920
Armed forces				55	55	0
Occupation
Management				4,610	2,785	1,820
Farmers and farm managers				450	385	65
Business and financial operations specialists				2,650	1,175	1,475
Computer and mathematical				1,000	675	325
Architecture and engineering				1,525	1,335	190
Life, physical and social science				355	240	120
Community and social service				1,105	385	720
Legal				500	250	250
Education, training and library				4,165	1,165	3,005
Arts, design, entertainment, sports and media				1,420	810	610
Healthcare practitioners and technicians				3,695	720	2,975
Healthcare support				1,485	130	1,355
Protective service				855	685	175
Food preparation and serving related				4,060	1,550	2,515
Building and grounds cleaning and maintenance				1,855	1,120	735
Personal care and service				2,405	335	2,070
Sales and related				8,060	3,815	4,245
Office and administrative support				11,545	2,450	9,095
Farming, fishing, and forestry				190	125	65
Construction and excavation				3,440	3,370	70
Installation, maintenance and repairs				2,505	2,400	105
Production				8,535	6,400	2,140
Transportation and material moving				4,470	3,695	775
Armed Forces				10	10	0