CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)
Geographic Area: Working in District of Columbia County, District of Columbia
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		730,448	100	671,680	100	-58,768	-8.0
Sex
Male		379,711	52.0	343,745	51.2	-35,966	-9.5
Female		350,737	48.0	327,935	48.8	-22,802	-6.5
Mode to work
Drove alone		305,428	41.8	310,690	46.3	5,262	1.7
2-person carpool		89,104	12.2	73,160	10.9	-15,944	-17.9
3-or-more-person carpool		59,952	8.2	37,310	5.6	-22,642	-37.8
Bus or trolley bus		92,519	12.7	54,625	8.1	-37,894	-41.0
All other transit¹		125,246	17.1	142,965	21.3	17,719	14.1
Bicycle or walked		40,783	5.6	35,745	5.3	-5,038	-12.4
Taxicab, motorcycle, or other mode		8,300	1.1	7,245	1.1	-1,055	-12.7
Worked at home		9,116	1.2	9,930	1.5	814	8.9
Travel time to work (Universe = Workers who did not work at home)
Less than 5		6,989	1.0	4,410	0.7	-2,579	-36.9
5 to 9		18,613	2.6	14,420	2.2	-4,193	-22.5
10 to 14		41,450	5.7	28,835	4.4	-12,615	-30.4
15 to 19		61,485	8.5	46,455	7.0	-15,030	-24.4
20 to 29		127,586	17.7	104,425	15.8	-23,161	-18.2
30 to 44		217,584	30.2	196,215	29.7	-21,369	-9.8
45- 59		126,578	17.5	124,105	18.8	-2,473	-2.0
60 or more		121,047	16.8	142,875	21.6	21,828	18.0
Mean travel time (minutes)		35.4	(X)	40.3	(X)	4.9	(X)
Median travel time (minutes)		33.9	(X)	35.5	(X)	1.6	(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	40.3	661,750	18,830	75,290	104,425	196,215	124,105	142,875
Row percent		100	2.8	11.4	15.8	29.7	18.8	21.6
Column percent		100	100	100	100	100	100	100
Drove alone	37.7	310,690	7,270	40,415	57,625	98,100	53,890	53,390
Row percent		100	2.3	13.0	18.5	31.6	17.3	17.2
Column percent		46.9	38.6	53.7	55.2	50.0	43.4	37.4
2-person carpool	40.1	73,160	1,225	8,145	12,225	22,195	14,470	14,915
Row percent		100	1.7	11.1	16.7	30.3	19.8	20.4
Column percent		11.1	6.5	10.8	11.7	11.3	11.7	10.4
3+ carpool	47.9	37,310	395	1,800	3,550	10,430	9,555	11,585
Row percent		100	1.1	4.8	9.5	28.0	25.6	31.1
Column percent		5.6	2.1	2.4	3.4	5.3	7.7	8.1
Bus or trolley bus	47.6	54,625	520	3,865	6,180	15,855	10,325	17,880
Row percent		100	1.0	7.1	11.3	29.0	18.9	32.7
Column percent		8.3	2.8	5.1	5.9	8.1	8.3	12.5
All other transit¹	46.8	142,965	360	4,910	16,610	44,095	34,265	42,740
Row percent		100	0.0	0.0	0.0	0.0	0.0	0.0
Column percent		21.6	1.9	6.5	15.9	22.5	27.6	29.9
Bicycle or walked	17.2	35,745	8,550	14,385	6,950	4,070	1,100	695
Row percent		100	23.9	40.2	19.4	11.4	3.1	1.9
Column percent		5.4	45.4	19.1	6.7	2.1	0.9	0.5
All other modes¹	46.4	7,245	515	1,780	1,290	1,475	505	1,665
Row percent		100	7.1	24.6	17.8	20.4	7.0	23.0
Column percent		1.1	2.7	2.4	1.2	0.8	0.4	1.2
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 District of Columbia County, District of Columbia
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				662,995	73,245	212,975	376,775
Drove alone				309,075	11,030	87,955	210,095
2-person carpool				72,545	3,845	22,665	46,035
3-or-more-person carpool				36,975	2,085	9,305	25,590
Bus or trolley bus				54,010	21,060	18,400	14,550
Streetcar, trolley car, subway, or elevated, Railroad or Ferryboat				142,115	19,285	55,855	66,975
Bicycle or walked				31,930	12,765	12,820	6,340
Taxicab, motorcycle or other means				7,055	1,615	2,115	3,325
Worked at Home				9,290	1,555	3,865	3,875

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				671,680	343,745	327,935
Industry
Agriculture, forestry, fishing and hunting and mining				845	485	365
Construction				23,010	20,445	2,570
Manufacturing				10,815	6,950	3,865
Wholesale trade				4,550	3,250	1,300
Retail trade				20,905	11,700	9,205
Transportation and warehousing and utilities				33,615	23,170	10,445
Information				39,840	22,260	17,580
Finance, insurance, real estate and rental and leasing				49,505	24,710	24,795
Profess., scientific, management, administrative, waste management				116,615	61,160	55,455
Educational, health and social services				99,750	33,205	66,545
Arts, entertainment, recreation, accommodation and food services				46,475	25,660	20,810
Other services (except public administration)				56,820	23,370	33,455
Public administration				158,395	79,025	79,370
Armed forces				10,540	8,365	2,180
Occupation
Management				93,050	50,440	42,610
Farmers and farm managers				75	55	20
Business and financial operations specialists				59,445	26,380	33,060
Computer and mathematical				45,710	27,005	18,705
Architecture and engineering				12,650	10,630	2,020
Life, physical and social science				22,140	13,405	8,735
Community and social service				12,000	4,460	7,540
Legal				49,845	28,300	21,545
Education, training and library				30,150	10,795	19,355
Arts, design, entertainment, sports and media				34,800	18,750	16,050
Healthcare practitioners and technicians				26,520	9,205	17,315
Healthcare support				6,640	1,365	5,275
Protective service				23,200	16,905	6,295
Food preparation and serving related				20,970	12,250	8,720
Building and grounds cleaning and maintenance				17,320	8,410	8,915
Personal care and service				11,870	3,710	8,160
Sales and related				29,850	14,715	15,135
Office and administrative support				110,930	30,835	80,095
Farming, fishing, and forestry				280	190	90
Construction and excavation				19,110	18,330	780
Installation, maintenance and repairs				11,825	10,795	1,030
Production				11,945	8,310	3,635
Transportation and material moving				18,160	15,770	2,390
Armed Forces				3,195	2,745	450