The Model Inventory of Roadway Elements (MIRE) is a listing of roadway features and traffic volume elements to help agencies move toward data-driven decision-making in safety management. This guidebook discusses methods of collecting the MIRE data elements and potential limitations of those methods. This document will provide data managers and collectors with information regarding techniques for collecting MIRE data elements that will allow them to potentially collect the elements more efficiently. The guidebook is not intended to provide a complete methodology for the collection of all MIRE data, but instead provide State and local agencies practical means to collect MIRE data that are not already collected. Agencies can incorporate the recommendations into their current data collection methods. The guidebook includes innovative and emerging data methodologies, guidelines for accuracy, and additional considerations when collecting data.