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| Table 1. Selected Characteristics | Census 2000 | 2007-2009 ACS | 2010 Census | 2010-2012 ACS | Is the numeric change between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|
| Value | MOE(+/-) | Value | MOE(+/-) | Value | Value | MOE(+/-) | ||
| Total Persons 1 | 455,466 | -- | 442,779 | -- | 432,552 | 433,283 | -- | -- |
| Persons in Households 2 | 451,104 | 266 | 436,607 | -- | 429,241 | 429,621 | -- | -- |
| Total Households 3 | 176,424 | 420 | 158,262 | 1,892 | 169,647 | 166,467 | 1,424 | Yes |
| Average Number of Persons per Household 4 | 2.56 | 0.01 | 2.76 | 0.03 | 2.53 | 2.58 | 0.02 | No |
| Average Household Income 5 | $51,065 | $464 | $66,155 | $1,848 | -- | $63,871 | $1,367 | Yes |
| Average Number of Vehicles per Household 6 | 1.57 | 0.01 | 1.68 | 0.03 | -- | 1.62 | 0.02 | Yes |
| Percent of Persons in Poverty 7 | 13.70 | 0.20 | 13.70 | 0.84 | -- | 16.70 | 1.01 | Yes |
| Percent Minority 8 | 30.20 | 0.30 | 35.40 | 0.35 | 37.10 | 36.90 | 0.59 | Yes |
| Percent of Persons 65 and Over 9 | 11.90 | 0.20 | 13.50 | 0.38 | 13.60 | 14.00 | 0.36 | Yes |
| Percent of Persons Foreign Born 10 | 7.50 | 0.20 | 10.00 | 0.44 | -- | 11.20 | 0.40 | Yes |
| Total Workers at Place of Residence11 | 213,714 | 1,363 | 217,105 | 2,973 | -- | 207,595 | 2,298 | Yes |
| Table 2a. Mode to Work 12 | CTPP2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between CTPP 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| Total Workers | 209,610 | 100.0 | 1,361 | 209,924 | 100.0 | 3,206 | 201,825 | 100.0 | 2,502 | Yes |
| Drove alone | 164,640 | 78.5 | 1,312 | 169,281 | 80.6 | 3,377 | 163,540 | 81.0 | 2,601 | No |
| 2-person Carpool | 22,335 | 10.7 | 590 | 18,415 | 8.8 | 1,561 | 18,151 | 9.0 | 1,351 | Yes |
| 3-or-more-person Carpool | 6,430 | 3.1 | 322 | 6,734 | 3.2 | 1,450 | 4,561 | 2.3 | 798 | Yes |
| Transit | 4,605 | 2.2 | 273 | 2,536 | 1.2 | 610 | 3,426 | 1.7 | 653 | Yes |
| Bike | 680 | 0.3 | 105 | 802 | 0.4 | 328 | 978 | 0.5 | 358 | No |
| Walked | 3,655 | 1.7 | 244 | 3,221 | 1.5 | 625 | 3,465 | 1.7 | 642 | No |
| Taxi, Motorcycle and Other means | 3,000 | 1.4 | 221 | 2,456 | 1.2 | 584 | 3,531 | 1.7 | 677 | No |
| Worked at Home | 4,265 | 2.0 | 263 | 6,479 | 3.1 | 1,222 | 4,173 | 2.1 | 634 | No |
| Table 2b. Mode to Work 12 | CTPP2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between CTPP 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| At Place of Work | ||||||||||
| Total Workers | 205,305 | 100.0 | 1,359 | 203,174 | 100.0 | 4,226 | 194,505 | 100.0 | 3,644 | Yes |
| Drove alone | 158,895 | 77.4 | 1,301 | 164,857 | 81.1 | 3,780 | 158,293 | 81.4 | 3,097 | No |
| 2-person Carpool | 22,755 | 11.1 | 595 | 17,211 | 8.5 | 1,382 | 16,288 | 8.4 | 1,257 | Yes |
| 3-or-more-person Carpool | 6,935 | 3.4 | 334 | 5,532 | 2.7 | 1,707 | 4,474 | 2.3 | 614 | Yes |
| Transit | 5,019 | 2.4 | 285 | 2,451 | 1.2 | 654 | 2,950 | 1.5 | 514 | Yes |
| Bike | 705 | 0.3 | 107 | 924 | 0.5 | 360 | 746 | 0.4 | 292 | No |
| Walked | 3,835 | 1.9 | 250 | 3,153 | 1.6 | 639 | 3,664 | 1.9 | 664 | No |
| Taxi, Motorcycle and Other means | 2,890 | 1.4 | 217 | 2,567 | 1.3 | 520 | 3,917 | 2.0 | 645 | Yes |
| Worked at Home | 4,265 | 2.1 | 263 | 6,479 | 3.2 | 1,222 | 4,173 | 2.1 | 634 | No |
| Table 3. Mean Travel Time by Mode to Work 13 | Census 2000 | 2007-2009 ACS | 2010-2012 ACS | Is the change in travel time between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|
| Minutes | MOE(+/-) | Minutes | MOE(+/-) | Minutes | MOE(+/-) | ||
| At Place of Residence | |||||||
| Total Workers (does not include workers who worked at home) | 25.0 | 0.2 | 23.5 | 0.7 | 23.7 | 0.6 | Yes |
| Drove alone | 23.7 | 0.2 | 23.0 | 0.8 | 22.9 | 0.7 | Yes |
| Carpooled | 27.7 | 0.6 | 26.7 | 3.4 | 26.8 | 2.9 | No |
| Transit | 51.1 | 2.2 | 44.5 | 17.0 | 50.5 | 15.3 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 26.8 | 1.6 | 17.8 | 5.0 | 20.5 | 4.1 | Yes |
Notes:
* The coefficient of variation (CV) can be derived by the standard error (SE) divided by the estimate, while SE = MOE/1.645.
** The z-value of the difference of the two estimates are used to determined if the two estimates are significantly different at 90% confidence level.
1 Census 2000 SF3 Table P1; 2007-2009 ACS Table B01003; 2010-2012 ACS Table B01003
2 Census 2000 SF3 Table P9; 2007-2009 ACS Table B09016; 2010-2012 ACS Table B01003 minus Table B26001
3 Census 2000 SF3 Table P10; 2007-2009 ACS Table B19001; 2010-2012 ACS Table B19001
4 Census 2000 SF3 Table P9 divided Census 2000 SF3 Table P10; 2007-2009 ACS Table B09016 divided 2007-2009 ACS Table B19001; 2010-2012 ACS Table S1101
5 CTPP2000 Table 1-090; 2007-2009 ACS Table B19025; 2010-2012 ACS Table B19025
6 Census 2000 SF3 Table H46; 2007-2009 ACS Table B25046; 2010-2012 ACS Table B25046
7 Census 2000 SF3 Table P87; 2007 -2009 ACS Table B17001; 2010-2012 ACS Table B17001
8 Census 2000 SF3 Table P6; 2007-2009 ACS Table B02001; 2010-2012 ACS Table B02001
9 Census 2000 SF3 Table P8; 2007-2009 ACS Table B01001; 2010-2012 ACS Table B01001
10 Census 2000 SF3 Table P21; 2007-2009 ACS Table B06003; 2010-2012 ACS Table B06003
11 Census 2000 SF3 Table P43; 2007-2009 ACS Table B23001; 2010-2012 ACS Table B23025
12 Residence place information is from CTPP2000 Table 1-002; 2007- 2009 ACS Table B08301; 2010-2012 ACS Table B08301. Workplace information is from CTPP2000 Table 2-002; 2007-2009 ACS Table B08406; 2010-2012 ACS Table B08601
13 CTPP2000 1-118; 2007-2009 ACS Table C08136; 2010-2012 ACS Table C08136
