The Laws of Techum Shabbos are complex. The site's objective is to share the basic halachos and create a database of maps for the community to upload. Let's begin
WWW.ARCGIS.COM HAS PHENOMENAL TOOLS TO ALLOW AN APP PROGRAMER WRITE AN APP TO CREATE YOUR PERSONAL TECHUM MAP BASED ON YOUR ACTUAL LOCATION. PLEASE CONTACT US IF YOU WOULD LIKE TO SPONSOR THIS AWESOME PROJECT.
Improve your crop of Shabbos- understanding how far you can walk is part of Yahadus.