Softree Optimal is a Mathematical Optimization tool for Geometric Design that optimizes the vertical alignment of a road to minimize construction costs, save engineering time, and evaluate design parameters. It proposes a new way of thinking about corridor design and allows for comparing and reviewing alignment options, optimizing profiles, automating the vertical alignment process, and evaluating the impact of changes to design constraints. It is available in four versions and saves an average of 15-20% off the earthwork costs of a project.