CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)
Geographic Area: Working in Linn 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		93,245	100	114,715	100	21,470	23.0
Sex
Male		49,910	53.5	60,465	52.7	10,555	21.1
Female		43,335	46.5	54,250	47.3	10,915	25.2
Mode to work
Drove alone		75,342	80.8	94,835	82.7	19,493	25.9
2-person carpool		8,423	9.0	9,875	8.6	1,452	17.2
3-or-more-person carpool		1,518	1.6	2,255	2.0	737	48.6
Bus or trolley bus		1,171	1.3	940	0.8	-231	-19.7
All other transit¹		15	0.0	27	0.0	12	80.0
Bicycle or walked		3,275	3.5	2,980	2.6	-295	-9.0
Taxicab, motorcycle, or other mode		572	0.6	790	0.7	218	38.1
Worked at home		2,929	3.1	3,000	2.6	71	2.4
Travel time to work (Universe = Workers who did not work at home)
Less than 5		3,441	3.8	3,910	3.5	469	13.6
5 to 9		14,510	16.1	15,400	13.8	890	6.1
10 to 14		22,220	24.6	24,745	22.2	2,525	11.4
15 to 19		18,998	21.0	23,385	20.9	4,387	23.1
20 to 29		16,279	18.0	22,230	19.9	5,951	36.6
30 to 44		9,245	10.2	13,450	12.0	4,205	45.5
45- 59		2,967	3.3	4,505	4.0	1,538	51.8
60 or more		2,656	2.9	4,095	3.7	1,439	54.2
Mean travel time (minutes)		17.6	(X)	19.9	(X)	2.3	(X)
Median travel time (minutes)		16.3	(X)	15.5	(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	19.9	111,715	19,310	48,130	22,230	13,450	4,505	4,095
Row percent		100	17.3	43.1	19.9	12.0	4.0	3.7
Column percent		100	100	100	100	100	100	100
Drove alone	19.4	94,835	15,720	42,075	19,685	10,800	3,485	3,070
Row percent		100	16.6	44.4	20.8	11.4	3.7	3.2
Column percent		84.9	81.4	87.4	88.6	80.3	77.4	75.0
2-person carpool	23.1	9,875	1,200	3,960	1,790	1,875	590	465
Row percent		100	12.2	40.1	18.1	19.0	6.0	4.7
Column percent		8.8	6.2	8.2	8.1	13.9	13.1	11.4
3+ carpool	27.3	2,255	265	745	470	400	209	169
Row percent		100	11.8	33.0	20.8	17.7	9.3	7.5
Column percent		2.0	1.4	1.5	2.1	3.0	4.6	4.1
Bus or trolley bus	40.0	940	24	190	110	230	155	235
Row percent		100	2.6	20.2	11.7	24.5	16.5	25.0
Column percent		0.8	0.1	0.4	0.5	1.7	3.4	5.7
All other transit¹	37.7	27	0	4	0	8	4	10
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	0.1	0.1	0.2
Bicycle or walked	9.5	2,980	1,915	815	95	79	43	40
Row percent		100	64.3	27.3	3.2	2.7	1.4	1.3
Column percent		2.7	9.9	1.7	0.4	0.6	1.0	1.0
All other modes¹	33.5	790	180	340	85	45	29	120
Row percent		100	22.8	43.0	10.8	5.7	3.7	15.2
Column percent		0.7	0.9	0.7	0.4	0.3	0.6	2.9
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 Linn 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				113,165	2,685	20,225	90,250
Drove alone				94,470	1,385	15,780	77,305
2-person carpool				9,780	420	2,170	7,190
3-or-more-person carpool				2,170	85	555	1,535
Bus or trolley bus				790	340	195	255
Streetcar, trolley car, subway, or elevated, Railroad or Ferryboat				24	4	14	4
Bicycle or walked				2,200	285	765	1,150
Taxicab, motorcycle or other means				765	125	315	330
Worked at Home				2,960	40	435	2,480

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				114,715	60,465	54,250
Industry
Agriculture, forestry, fishing and hunting and mining				985	810	175
Construction				7,265	6,540	725
Manufacturing				20,785	14,700	6,090
Wholesale trade				4,495	3,355	1,140
Retail trade				13,970	7,140	6,830
Transportation and warehousing and utilities				5,855	4,320	1,540
Information				7,490	3,525	3,965
Finance, insurance, real estate and rental and leasing				8,290	3,225	5,065
Profess., scientific, management, administrative, waste management				10,630	5,365	5,265
Educational, health and social services				20,235	4,370	15,865
Arts, entertainment, recreation, accommodation and food services				6,795	3,110	3,685
Other services (except public administration)				4,875	2,445	2,430
Public administration				2,980	1,510	1,470
Armed forces				55	50	4
Occupation
Management				9,235	5,880	3,355
Farmers and farm managers				545	485	65
Business and financial operations specialists				5,670	2,445	3,225
Computer and mathematical				4,550	3,380	1,170
Architecture and engineering				3,950	3,505	445
Life, physical and social science				490	280	210
Community and social service				1,735	580	1,160
Legal				875	385	490
Education, training and library				5,240	1,360	3,880
Arts, design, entertainment, sports and media				2,140	1,035	1,100
Healthcare practitioners and technicians				5,025	985	4,040
Healthcare support				1,760	170	1,595
Protective service				1,370	1,050	315
Food preparation and serving related				5,065	2,095	2,970
Building and grounds cleaning and maintenance				2,590	1,560	1,030
Personal care and service				3,125	390	2,735
Sales and related				13,440	6,975	6,460
Office and administrative support				20,425	5,080	15,345
Farming, fishing, and forestry				205	165	40
Construction and excavation				5,680	5,530	150
Installation, maintenance and repairs				4,280	4,025	255
Production				10,265	7,115	3,150
Transportation and material moving				7,055	5,995	1,060
Armed Forces				4	4	4