CAP-X is an example of a planning-stage, spreadsheet-based tool developed by FHWA to evaluate junctions (conventional intersections, alternative interchanges, and roundabouts). CAP-X inputs include turning movement volumes, truck percentages, and volume growth percentages. CAP-X outputs include critical lane volume and volume to capacity (v/c) ratio for various junctions (conventional, quadrant roadway, displaced left turn (DLT), etc.). CAP-X reports include a graphic of each junction-type with corresponding inputs and outputs. For more information about CAP-X, refer to the FHWA’s CAP-X webpage.