Prioritization of Barrier Removal
To successfully create an accessible pedestrian infrastructure, it is necessary to prioritize the removal of barriers over time. This prioritization is a function of deviation from code requirements (impedance score) and frequency of use of the pedestrian feature (activity score).
Activity Score and Impedance Score together will derive an overall Barrier ranking. A high activity score is representative of areas where public activity (especially among persons with disabilities) is likely to be greatest, based on demographics, land use, economic data, transit routes, housing, population density and other census data. A high impedance score is representative of areas where the quality of existing infrastructure is poor for persons with disabilities, based on barriers documented on the inventory of pedestrian features.