The SPICE Tool is intended to aid in the determination of a preferred alternative for a given intersection project by providing an objective, quantifiable basis to compare the safety performance of different intersection types.

Appendix K, Section 8

provides a link to acquire the SPICE spreadsheet tool. The SPICE Tool uses the SPF’s in Part C of the HSM (and subsequent NCHRP Reports) to select high-quality CMF’s from Part D of the HSM and the FHWA/University of North Carolina CMF Clearinghouse crash database, to predict crash frequency and severity for a variety of intersection control strategies. Based on the input parameters, the tool specifies the predicted crash frequency and crash severity for each control strategy selected for evaluation. Practitioners can conduct analysis for the opening year, Design Year, or over the lifecycle of the improvement. Inputs include pre-selection of practical control strategies, AADT information, pedestrian volume and site context information, e.g., schools within 100ft of the intersection., the number of turn lanes. The tool generates crash predictions that are used to rank the most and least safest control strategies. Those results are compared and combined with the CAP-X results to short-list intersection control alternatives to be studied in Stage 2 detailed evaluation.