HCS is a Preliminary Schematics-stage tool used to evaluate uninterrupted flow (freeway) and interrupted flow (urban and rural) facilities. HCS performs the HCM equations/operations and includes methodologies for vehicle and non-vehicle (pedestrian, bicycle, transit) modes. HCS inputs and outputs vary by facility and mode; inputs include volume, roadway, and signal timing parameters. HCS outputs include traffic operations MOEs LOS, delay, queue lengths, facility travel speed, etc.). HCS reports static output by intersection or roadway segment. HCS results are most reliable when typical geometric locations are analyzed at locations with traffic volumes under capacity (undersaturated conditions). HCM/HCS is traditionally used for undersaturated conditions and rural facilities. HCS can be calibrated to local conditions by adjusting default inputs.