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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 | 2,061,162 | -- | 1,952,037 | -- | 1,820,584 | 1,803,251 | -- | -- |
| Persons in Households 2 | 2,028,743 | 723 | 1,922,734 | -- | 1,796,735 | 1,782,296 | -- | -- |
| Total Households 3 | 768,626 | 936 | 694,260 | 3,479 | 702,749 | 667,145 | 3,302 | Yes |
| Average Number of Persons per Household 4 | 2.64 | 0.01 | 2.77 | 0.01 | 2.56 | 2.67 | 0.01 | Yes |
| Average Household Income 5 | $53,155 | $225 | $55,221 | $554 | -- | $55,760 | $566 | Yes |
| Average Number of Vehicles per Household 6 | 1.51 | 0.01 | 1.52 | 0.01 | -- | 1.48 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 16.40 | 0.10 | 22.50 | 0.52 | -- | 25.30 | 0.51 | Yes |
| Percent Minority 8 | 48.40 | 0.10 | 47.00 | 0.18 | 47.70 | 47.10 | 0.14 | Yes |
| Percent of Persons 65 and Over 9 | 12.10 | 0.10 | 12.00 | 0.17 | 12.70 | 12.90 | 0.15 | Yes |
| Percent of Persons Foreign Born 10 | 6.70 | 0.10 | 7.90 | 0.27 | -- | 7.80 | 0.19 | Yes |
| Total Workers at Place of Residence11 | 851,531 | 2,860 | 778,522 | 5,731 | -- | 670,174 | 5,162 | 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 | 827,310 | 100.0 | 2,847 | 732,800 | 100.0 | 4,623 | 653,467 | 100.0 | 4,939 | Yes |
| Drove alone | 662,815 | 80.1 | 2,713 | 593,757 | 81.0 | 5,230 | 530,462 | 81.2 | 5,157 | Yes |
| 2-person Carpool | 75,025 | 9.1 | 1,088 | 55,624 | 7.6 | 2,290 | 51,230 | 7.8 | 2,311 | Yes |
| 3-or-more-person Carpool | 21,495 | 2.6 | 590 | 13,526 | 1.8 | 1,286 | 13,519 | 2.1 | 1,237 | Yes |
| Transit | 29,420 | 3.6 | 689 | 25,516 | 3.5 | 1,942 | 21,466 | 3.3 | 1,602 | Yes |
| Bike | 1,175 | 0.1 | 139 | 2,484 | 0.3 | 473 | 1,689 | 0.3 | 297 | Yes |
| Walked | 15,660 | 1.9 | 504 | 15,573 | 2.1 | 1,468 | 11,478 | 1.8 | 912 | Yes |
| Taxi, Motorcycle and Other means | 7,120 | 0.9 | 341 | 7,693 | 1.0 | 831 | 6,969 | 1.1 | 826 | No |
| Worked at Home | 14,605 | 1.8 | 487 | 18,627 | 2.5 | 1,370 | 16,654 | 2.5 | 1,034 | Yes |
| 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 | 852,165 | 100.0 | 2,861 | 772,865 | 100.0 | 6,358 | 711,137 | 100.0 | 6,530 | Yes |
| Drove alone | 698,675 | 82.0 | 2,750 | 632,757 | 81.9 | 6,059 | 585,041 | 82.3 | 6,250 | Yes |
| 2-person Carpool | 71,095 | 8.3 | 1,060 | 58,234 | 7.5 | 2,273 | 54,854 | 7.7 | 2,301 | Yes |
| 3-or-more-person Carpool | 18,550 | 2.2 | 549 | 13,924 | 1.8 | 1,177 | 14,033 | 2.0 | 1,060 | Yes |
| Transit | 24,460 | 2.9 | 629 | 22,631 | 2.9 | 1,750 | 19,561 | 2.8 | 1,563 | Yes |
| Bike | 1,165 | 0.1 | 138 | 2,547 | 0.3 | 455 | 1,585 | 0.2 | 280 | Yes |
| Walked | 15,080 | 1.8 | 495 | 15,380 | 2.0 | 1,512 | 11,054 | 1.6 | 963 | Yes |
| Taxi, Motorcycle and Other means | 8,535 | 1.0 | 373 | 8,765 | 1.1 | 866 | 8,355 | 1.2 | 849 | No |
| Worked at Home | 14,605 | 1.7 | 487 | 18,627 | 2.4 | 1,370 | 16,654 | 2.3 | 1,034 | Yes |
| 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) | 25.8 | 0.1 | 24.8 | 0.3 | 25.0 | 0.3 | Yes |
| Drove alone | 24.7 | 0.1 | 23.8 | 0.4 | 24.1 | 0.4 | Yes |
| Carpooled | 26.6 | 0.3 | 26.0 | 1.6 | 24.7 | 1.6 | Yes |
| Transit | 53.0 | 0.9 | 51.3 | 5.9 | 52.2 | 5.3 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 19.0 | 0.6 | 18.5 | 2.5 | 20.5 | 2.5 | No |
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
