For more information, please visit: https://chem.tti.tamu.edu. Previous work conducted by the team : https://www.its.dot.gov/research-areas/ITS4US/deployments/georgia/

PIDA is a research study; stands for Pedestrian Infrastructure Downtown Atlanta. I assume you mean the sidewalk that was on the JL Freedom Parkway over 75/85, right? If so, neither SV nor aerial views showed the sidewalk, so it was deleted.