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Pleasanton is situated in a unique regional travel shed that is constrained by gateways. These regional gateways include 1-580 west of Foothill and east of the Altamont Pass, 1-680 north of San Ramon and south of SR 84, as well as other gateways north of Dublin and Livermore. The roadway network and zone connectors represent how traffic from each zone enters the roadway network and travel in and through the study area. The City's model is GIS based, which provides all roadway travel distance information. The number of travel lanes, capacity and average free flow travel speeds of each roadway segment are inputs into the model. The model then estimates congested speeds based on speed-flow relationships by facility type. Within the City of Pleasanton, the travel model divides the City into separate traffic analysis zones (TAZs). A graphic showing the boundaries and TAZ numbers is in the Appendix. The number of homes and apartments and the types and sizes of businesses within each zone is input into the model. External to the City of Pleasanton, the model uses daily person trip generation and peak hour vehicle trip generation based on other regional travel models. For example, in the City of Livermore zones the model incorporates zonal specific trips directly from the City of Livermore model. Dublin and San Ramon trips are estimated by the CCTA Triangle model. land Use Inputs The City of Pleasanton's Planning Department provided data on existing residential and non-residential land uses in the City of Pleasanton, approved development projects, and potential future development projects consistent with Buildout of the current General Plan. The traffic model requires its residential land use input in terms of number of single family households and multi-family households. Non-residential land uses must be specified in terms of square feet of floor space or some other convenient measure from which can be estimated trip generation. Four development scenarios were developed for Pleasanton: . Existing (Year 2005/6) . Approved . 1996 General Plan Buildout . Consensus Preferred Plan Buildout Alternative City of Pleasanton Travel Demand Forecasting and Micro-Simulation Models Page 3 January 23, 2007