Mosaic is not a tool to be run in one afternoon. Rather, it is designed to be used during the evaluation phase of a transportation planning process to compare possible actions and investments. This step of the User Guide provides guidance on how Mosaic results can be used to inform transportation decision-making. Mosaic produces valuable information in rich detail, but it’s important to note that Mosaic outputs cannot in themselves dictate a decision. Rather, the information offers stakeholders a transparent assessment of value, benefits and costs to help inform decisions about whether to proceed with a set of investments.