The Cambridge Department of Public Works (DPW) consults regularly with the ADA Coordinator and the Cambridge Commission for Persons with Disabilities (CCPD) to ensure pedestrian access to sidewalks. The DPW evaluates each sidewalk, intersection, crosswalk and curb ramp at least every five years. Surface conditions, slopes, landings and detectable warnings are all rated using a 1-5 system, and the data is entered into the city geographic information system (GIS). From this data the DPW develops and annually updates (with CCPD input) a five year plan for sidewalk repairs and curb ramp replacement - currently $4.5 M per year.