Validation demands data, which does not exist for future year analyses. Nevertheless, parameters are updated when necessary. Signal timing and phasing are changed to accommodate demand and new geometry improvements. Driving behavior can only be adjusted in future conditions when roadway geometry or traffic control changes drastically. The HCM 7th Edition provides guidance on adjusting capacities to accommodate CAVs. Guidance on CAVs in the HCM 7th Edition can be found in various chapters. For information on modeling autonomous vehicles, refer to the respective microsimulation software user guide.