Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 5

OLS Field Name OLS Field Data
Main Title COMMUTER Model Coefficients, October 2000.
CORP Author Environmental Protection Agency, Washington, DC.
Publisher Oct 2000
Year Published 2000
Report Number EPA/420/F-00/042;
Stock Number PB2006-111484
Additional Subjects COMMUTER computer model ; Commuting patterns ; Trip distribution models ; Modal chioce ; Travel time ; Computerized simulation ; Transportation management ; Travel behavior ; Data analysis ; Coefficients ; Impact ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2006-111484 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/20/2006
Collation 14p
Abstract
The COMMUTER Model employs a simplified logit modeling process (called pivot point) that relies on locally derived coefficients to evaluate the influence of alternative measures on travel behavior. The coefficients are derived from observed travel behavior using standard survey techniques, statistical analysis, and modeling methods. Coefficients that have not been derived from observed travel behavior (such as composite measures or transferred coefficients) are not included as they could bias the average values. The fact that the coefficients are all derived using similar statistical methods explains why the coefficients are reasonably similar across the country. A review of the coefficients indicates that while they are relatively consistent across the country, there is enough variation in values between cities that it is essential that users understand the use of these coefficients. This report provides the user with this background information.