20200609 17235200 1.0 TRUE Roadway Service Area Map A 1997 Roadway Impact Zone data is available for areas within the City of McKinney. Features were rectified to the latest aerial photography available (Service Area Map A 1997). Created by the City of McKinney GIS Department for Engineering.Last updated: Update frequency: Not Planned Created and maintained by the City of McKinney GIS Department and the City of McKinney Planning Department.