An application to inventory curb-ramp conditions from a model of predicted corners and crossings.  It uses javascript, a cartodb database.  The original application was developed by Mele Sax-Barnett.  This code, while based on Mele's work is largely that of Scott Parker.  It will be used by Oregon Walks (oregonwalks.org) partners to survey sidewalks, crosswalks and curb ramps in the Portland Region.   The intent of the application is that it should be tranferrable to any city, region, village or county that has a pedestrian network of sidewalks, trails and crossing.