This document summarizes a proposed multitouch interface for planning green transportation routes. The interface would allow users to select starting and ending locations on a draggable map, choose different transportation modes like train or bus, and click a button to calculate the greenest route. Path colors on the map would indicate the selected transportation mode for each segment. The design aims to make all interactions touch-based like Microsoft Surface, with options to pan, zoom, and select transportation icons directly on the display.