Laserfiche WebLink
and input from regional planning staff. Once consensus is developed with the Technical Advisory <br /> Committee, and ultimately the Executive Board,we will finalize these projections at the TAZ level. <br /> The future year socio-economic forecasts will be updated to the year 2040,and changes to industrial <br /> employment will be reflected in two estimates: <br /> 1) With the construction of the proposed circumferential roadway <br /> 2) Without the construction of the proposed circumferential roadway <br /> Task 1Deliverables: <br /> 1. Update existing DUATS TDM socio-economic and commodity data for the base year of 2015, and <br /> allocate the data to a TAZ level for the DUATS region <br /> 2. Develop 2040 forecasts of the socio-economic data and allocate it to the TAZ level <br /> 3. Provide baseline and forecasted socio-economic and industrial GIS based data for the DUATS <br /> Region. <br /> Task 2: Estimate TAZ Level Commodity Flows for the DUATS Region <br /> The consultant will perform data analysis to disaggregate the county level FAF-4 domestic data and the <br /> import/export datasets from Quetica-Wiser to the TAZ level based on the DUATS regional travel demand <br /> model. The TAZ disaggregation will rely heavily on freight facility and business establishment data,as <br /> well as socio-economic variables from Task 1 that have high correlation to commodify flows. <br /> Task 2 Deliverables: <br /> 1. The resulting TAZ level commodity flow data will be used as an input to the DUATS travel <br /> demand model for the Decatur supply chain network optimization project. <br /> 2. GIS data for disaggregated freight flows to TAZ level. <br /> Task 3: Model Update and Calibration <br /> DUATS will provide all available model documentation, model files and macros describing the model <br /> process and parameters. Following development of the Year 2015 socio-economic data,the model will <br /> be run using the existing network,and existing model procedures. The model results will be compared <br /> at existing model screen lines. Up to two model refinements will be made if necessary to improve model <br /> validation. <br /> The year 2040 socio-economic data will be provided. Network changes to reflect the existing plus <br /> committed network will be provided and coded into the model. Information on the location and design <br /> characteristics of the proposed circumferential route will also be provided. <br /> Two assignments will be made for each roadway scenario—with and without the new roadway. <br /> The results will be reviewed and refined. <br /> Performance measures will be provided that can be used to develop cost-benefit information,as well as <br /> economic impact. This will include changes in vehicle miles of travel and vehicle hours of travel. <br /> 2 <br />