Description: This data layer was built and is updated through the use of GPS and aerial photography. Member cities also contribute, whenever possible, by submitting digital files of new streets and neighborhood subdivisions. Streets have been rectified to the NCTCOG's 2007 six inch digital orthophotography. The Tarrant County 9-1-1 Emergency Assistance District (TC911) is not responsible for any errors or inaccuracies in the files, or for uses of the data other than for which it was intended. Last refreshed 11/2017.