This field guide helps agencies select pedestrian crash countermeasures based on criteria established in published literature, best practices, and national guidance. This guide includes a form that the agency may use to document roadway characteristics and pedestrian safety issues. It also includes tables that relate these documented conditions to a specific set of countermeasure options. A series of descriptions lead the agency through additional installation considerations for each countermeasure.The January 2018 version of this document was updated to include the Rectangular Rapid-Flashing Beacon (RRFB). FHWA issued a new Interim Approval (IA-21) for the optional use of RRFBs in March 2018.