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Paul Waddell, 2011Integrating <strong>PECAS</strong> and Travel ModelTuesday, May 24, 2011
Paul Waddell, 2011<strong>PECAS</strong> 3-Stage Calibration Approach• Stage 1 - the S1 parameters- Consider each module separately- Based on specific, separate dataset- Often ‘disaggregate data’- Often statistical estimation- Fixed for remainder of calibration• Stage 2 - the S2 parameters- Consider each module separately- Based on module hitting targets- Often ‘aggregate data’- Some also S3 parameters- Specialized software developed• Stage 3 - the S3 parameters- Consider all modules linked together- Based on module hitting targets- ‘Aggregate data’- Certain S2 parameters also S3parameters, process updates thesein response to total model behaviour- Specialized software developedTuesday, May 24, 2011
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Page 10: Paul Waddell, 2011Example I-O Expen
Page 14: Paul Waddell, 2011Multiplier Effect
Page 19 and 20: Paul Waddell, 2011Economic Flows Ca
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Page 23 and 24: Paul Waddell, 2011Activity Allocati
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Page 27 and 28: Paul Waddell, 2011Economic Interact
Page 29 and 30: Paul Waddell, 2011Model Design Diag
Page 35 and 36: Paul Waddell, 2011Economic Interact
Page 49: Paul Waddell, 2011Full PECAS System
Page 54 and 55: Paul Waddell, 2011Sacramento Bluepr
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Page 58 and 59: Paul Waddell, 2011SACOG Equity Anal
Page 62 and 63: where such homes are typically loca
Page 66 and 67: Paul Waddell, 2011CalSIM• Califor
Page 68 and 69: Paul Waddell, 2011CalSIMConstrained
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Page 72 and 73: Paul Waddell, 2011CalSIMsource: Dev
Page 88 and 89: Paul Waddell, 20111. PECAS overview
Page 90 and 91: Paul Waddell, 2011Limitations of In
Page 92 and 93: Paul Waddell, 2011Limitations of PE

Spatial Input-Output Models: PECAS - WebHome - UrbanSim

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