Data requirements vary by project type, analysis tool, and selected MOEs. Review

Chapter 2

for detailed information on data requirements. FHWA Traffic Analysis Toolbox, Volume III (2004) guidance may be followed for TxDOT projects that do not involve FHWA approval. Average day traffic analysis may be performed for these projects. Follow FHWA Traffic Analysis Toolbox, Volume III (2019) guidance for projects that involve IAJRs or FHWA approval.