CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)
Geographic Area: Working in Loudoun County, Virginia
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		39,847	100	79,240	100	39,393	98.9
Sex
Male		22,362	56.1	44,850	56.6	22,488	100.6
Female		17,485	43.9	34,390	43.4	16,905	96.7
Mode to work
Drove alone		30,079	75.5	62,255	78.6	32,176	107.0
2-person carpool		4,525	11.4	7,110	9.0	2,585	57.1
3-or-more-person carpool		1,744	4.4	2,575	3.2	831	47.6
Bus or trolley bus		127	0.3	305	0.4	178	140.2
All other transit¹		42	0.1	185	0.2	143	340.5
Bicycle or walked		1,094	2.7	1,305	1.6	211	19.3
Taxicab, motorcycle, or other mode		345	0.9	785	1.0	440	127.5
Worked at home		1,891	4.7	4,725	6.0	2,834	149.9
Travel time to work (Universe = Workers who did not work at home)
Less than 5		1,573	4.1	1,885	2.5	312	19.8
5 to 9		4,397	11.6	6,400	8.6	2,003	45.6
10 to 14		4,717	12.4	8,695	11.7	3,978	84.3
15 to 19		4,870	12.8	9,480	12.7	4,610	94.7
20 to 29		5,876	15.5	12,555	16.8	6,679	113.7
30 to 44		7,502	19.8	15,170	20.4	7,668	102.2
45- 59		4,015	10.6	9,420	12.6	5,405	134.6
60 or more		5,006	13.2	10,910	14.6	5,904	117.9
Mean travel time (minutes)		28.0	(X)	31.9	(X)	3.9	(X)
Median travel time (minutes)		24.1	(X)	25.5	(X)	1.4	(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	31.9	74,515	8,285	18,175	12,555	15,170	9,420	10,910
Row percent		100	11.1	24.4	16.8	20.4	12.6	14.6
Column percent		100	100	100	100	100	100	100
Drove alone	30.6	62,255	6,585	15,670	11,055	12,825	8,015	8,100
Row percent		100	10.6	25.2	17.8	20.6	12.9	13.0
Column percent		83.5	79.5	86.2	88.1	84.5	85.1	74.2
2-person carpool	36.5	7,110	665	1,620	990	1,465	920	1,450
Row percent		100	9.4	22.8	13.9	20.6	12.9	20.4
Column percent		9.5	8.0	8.9	7.9	9.7	9.8	13.3
3+ carpool	45.7	2,575	210	345	235	620	329	829
Row percent		100	8.2	13.4	9.1	24.1	12.8	32.2
Column percent		3.5	2.5	1.9	1.9	4.1	3.5	7.6
Bus or trolley bus	42.6	305	19	30	29	94	25	105
Row percent		100	6.2	9.8	9.5	30.8	8.2	34.4
Column percent		0.4	0.2	0.2	0.2	0.6	0.3	1.0
All other transit¹	68.6	185	0	0	25	35	39	90
Row percent		100	0.0	0.0	0.0	0.0	0.0	0.0
Column percent		0.2	0.0	0.0	0.2	0.2	0.4	0.8
Bicycle or walked	14.4	1,305	680	320	135	79	30	60
Row percent		100	52.1	24.5	10.3	6.1	2.3	4.6
Column percent		1.8	8.2	1.8	1.1	0.5	0.3	0.5
All other modes¹	61.2	785	115	185	85	64	60	275
Row percent		100	14.6	23.6	10.8	8.2	7.6	35.0
Column percent		1.1	1.4	1.0	0.7	0.4	0.6	2.5
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 Loudoun County, Virginia
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				79,160	1,520	13,955	63,685
Drove alone				62,235	910	10,190	51,135
2-person carpool				7,085	180	1,575	5,330
3-or-more-person carpool				2,570	155	660	1,755
Bus or trolley bus				305	50	125	135
Streetcar, trolley car, subway, or elevated, Railroad or Ferryboat				185	40	25	123
Bicycle or walked				1,295	90	510	695
Taxicab, motorcycle or other means				765	40	250	480
Worked at Home				4,725	55	630	4,040

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				79,240	44,850	34,390
Industry
Agriculture, forestry, fishing and hunting and mining				835	590	245
Construction				8,205	7,465	745
Manufacturing				5,090	3,585	1,505
Wholesale trade				2,045	1,400	645
Retail trade				8,995	4,975	4,025
Transportation and warehousing and utilities				9,690	6,380	3,310
Information				7,045	4,180	2,860
Finance, insurance, real estate and rental and leasing				4,370	1,845	2,525
Profess., scientific, management, administrative, waste management				10,065	5,905	4,160
Educational, health and social services				10,865	2,205	8,660
Arts, entertainment, recreation, accommodation and food services				4,965	2,710	2,255
Other services (except public administration)				3,510	1,610	1,900
Public administration				3,320	1,795	1,525
Armed forces				235	210	25
Occupation
Management				9,145	5,915	3,230
Farmers and farm managers				245	160	80
Business and financial operations specialists				3,890	1,765	2,125
Computer and mathematical				4,595	3,225	1,365
Architecture and engineering				2,235	1,960	270
Life, physical and social science				560	335	220
Community and social service				720	225	500
Legal				650	335	320
Education, training and library				4,195	855	3,340
Arts, design, entertainment, sports and media				1,895	830	1,065
Healthcare practitioners and technicians				2,340	640	1,700
Healthcare support				520	45	470
Protective service				1,110	780	330
Food preparation and serving related				2,635	1,290	1,345
Building and grounds cleaning and maintenance				2,195	1,385	810
Personal care and service				3,315	665	2,650
Sales and related				9,200	4,955	4,245
Office and administrative support				12,190	3,935	8,255
Farming, fishing, and forestry				285	220	65
Construction and excavation				5,760	5,680	80
Installation, maintenance and repairs				2,820	2,680	140
Production				2,820	1,960	865
Transportation and material moving				5,810	4,885	925
Armed Forces				110	110	0