The overall contract included four (4) separate task orders, which included sixty-five (65) individual traffic forecasting projects. Grice Consulting Group was responsible for providing professional services for data collection, field inventory and review, traffic forecasts and forecasting studies following the requirements as prescribed in the GDOT Plan Development Process (PDP) and Plan Presentation Guide (PPG).
Each project scope included the development of existing average annual daily traffic (AADT), existing peak (AM and PM) hourly daily traffic volumes (DHV), base and design year build ADT and DHV and base and design year no-build ADT and DHV. In addition, ADTs and DHVs were developed with 24-hour truck percentages for single unit trucks and combination trucks. All project documentation, including a methodology technical memorandum and traffic forecasting MicroStation drawings were submitted for each project.