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<br />'. <br /> <br />_8IT...:6:.. <br /> <br />fp <br />FnlR & PEERS <br />IUNSPORlATlOH (ONSUlTAHIS <br /> <br />March 17. 2008 <br /> <br />Jill Ekas, AICP <br />Planning Manager <br />City of Redwood City <br />1017 Middlefield Road <br />Redwood City, CA 94063 <br /> <br />Re: City of Redwood City General Plan. Travel Demand Model Peer Review <br />Dear Ms. Ekas: <br /> <br />As you aware, a validated travel demand model is needed for us to reasonably forecast future <br />traffic and test the effects of various land use plans as part of the General Plan process. The <br />latest San Mateo County travel demand model developed by San Mateo City/County Association <br />of Governments (C/CAG) does not provide adequate roadway or land use detail within Redwood <br />City necessary for the General Plan process. We understand that the City of Redwood City has <br />contracted with T JKM to develop a sub-area model with more land use and roadway detail In <br />Redwood City. For us to be confident in the model output and to be able to support the traffic <br />forecasts, Fehr & Peers will peer review and conduct sensitivity tests on this sub-area model to <br />determine Its suitability for the General Plan. <br /> <br />Our scope of work, followed by fee and schedule is presented below <br /> <br />SCOPE OF WORK <br /> <br />The scope of work will consist of the following tasks. <br /> <br />Task 1: Review Model Structure <br /> <br />We will review the Redwood City travel demand model to determine the accuracy and <br />appropriateness of the base year and future roadway network, Traffic Analysis Zone (TAZ) <br />structure, and land uses within Redwood City. The characteristics of the base year roadway <br />network will be compared against field observations and the future network will be compared <br />against published plans for infrastructure improvements. The base year land use data will be <br />compared against census data, aerial photos, and field observations. The future year land use <br />forecasts will be compared for consistency with General Plan land use designations and ABAG <br />projections. <br /> <br />Task 2: Model Sensitivity Tests <br /> <br />We will examine the documentatIon of the sub-area model validation process prepared by <br />T JKM. We assume that the model development report will document standard statistical <br />tests such as the maximum deviation, correlation coefficient, and percent root mean squared <br />error (RMSE) criteria contained in Travel Forecasting Guidelines, Caltrans, 1992. We would <br />also request that model validation statistics be provided both before and after the application <br />of any origin-destination matrix estimation (ODME) techniques, if such are used in this <br /> <br />100 Pringle Avenue, Suite 600 Walnut Creek, CA 94596 (925) 930-7100 Fax (925) 933-7090 <br />WVM'.fehrandpeers.com <br />