[CTPP] TransCAD TAZ Procedures

With the help from Howard Simkowitz and Caliper Corp I was able to use TransCAD 3.5 and their District Management tools for the Phase Two Census work. The key is their "atomized polygons." Although the jury is still out, I feel obliged to other TransCAD users in the group to report the procedures used in Indianapolis. The attached is that initial effort. I will refine that document as we gain more experience in our operations. So far, I am impressed with the ease of Phase 2 Utilities. Due to the messy natures Census segments, I have not yet to assess the accuracy of tagging operations. I have certainly achieve significant time saving by tagging the existing TAZ layer to the TIGER polygons. Please consider the attached very preliminary working document. I would welcome any comments and questions. Sweson Yang, AICP Chief Transportation Planner City of Indianapolis/Indianapolis MPO (317) 327-5137 FAX: (317) 327-5103 E-mail: syang(a)IndyGov.org