The Multimodal Investment Choice Analysis (MICA) project is developing a computer-based tool to assist the Washington State Department of Transportation (WSDOT), the Washington State Transportation Commission, and the Washington State Legislature in making state transportation funding decisions. The function of MICA is to summarize the multimodal budgetary tradeoffs that will result from varying funding allocation and priority scenarios. MICA's methodology is based on benefit-cost and goal achievement analysis. The project has completed the first phase of research. The purpose of this two-volume report is to document the analysis methodology contained within the MICA program, as well as general findings from the first phase of this research effort. This document is also designed to serve as a User's Manual for operating the MICA program. While challenges still exist, the results of the Phase I research effort indicate that development of a multimodal analysis tool is feasible.