Travel Demand Model Data (c25q4)

This dataset includes the analysis year inputs and outputs from the Air Quality Conformity Analysis approved in January 2026. The horizon year is 2050 and reflects the policies and projects adopted in the ON TO 2050 Regional Comprehensive Plan. The air quality analysis is completed twice annually, in the second quarter and the fourth quarter. The data associated with the analysis is named based on the year the analysis was completed and the quarter it was completed. Therefore, the files in this dataset are referred to as c25q4 data. The analysis years for this conformity cycle include 2019, 2025, 2030, 2035, 2040, and 2050. We associate scenario numbers with the analysis years as shown below. You will notice the scenario numbers 100–700 referenced in many of the filenames or in headers within the files. Analysis year scenario numbers: 2019 | 100 2025 | 200 2030 | 300 2035 | 400 2040 | 500 2050 | 700 Links to download data files: Travel Demand Model Data (c25q4) - 2019 Base Travel Demand Model Data (c25q4) - 2025 Forecast Travel Demand Model Data (c25q4) - 2030 Forecast Travel Demand Model Data (c25q4) - 2035 Forecast Travel Demand Model Data (c25q4) - 2040 Forecast Travel Demand Model Data (c25q4) - 2050 Forecast For additional information, see the travel demand model documentation.