This project will develop a light demonstration version of the North American Road Safety Calculator, a software tool to assist practitioners with selection of situationally appropriate road safety strategies. In Stage 1, a situational assessment will be conducted to discuss the North American Road Safety Calculator with potential users from various levels of government, determine the software’s functional requirements, and identify a sustainable business model for the Calculator. Screen mock-ups will be prepared that can be used to discuss the tool with project stakeholders. Surveys and interviews will be conducted to understand the technical and operational needs of potential users. The identified user needs will be transformed into a description of the technical requirements for the tool in terms of software engineering. To assure that the calculator is sustainable in the long run, various potential business models will be explored. The intellectual property implications of each business model will also be analyzed. Work in Stage 2 will include preparing a partially functional demonstration version of the tool along with an implementation plan. A light demonstration version of the North American Road Safety Calculator will be developed to demonstrate its viability. This demo version will incorporate a subset of the road safety strategies desired by North American users and a few sample geographies. This will allow the project team to identify administrative and technical issues that need to be overcome in future work to develop a full working prototype. Finally, a plan will be prepared for staging development of the North American Road Safety Calculator software and creating the administrative structures necessary to assure its sustainable implementation over the long term. The final report will include all relevant data, methods, models, and conclusions.