TxDOT’s forecasting analysis process is currently classified into two different categories: TPP-led and District-led. The District provides TPP Traffic Analysis Branch a notification of the District Led Traffic Analysis. TPP maintains the statewide system of records for traffic forecasting. For additional guidance on traffic volume and forecasting, refer to the TxDOT TPP Traffic Forecasting Analysis SOPs. Coordinate with the TxDOT project manager to gain access to the latest documents.