Graphic (Spatial) Edits. Each named street needs to be represented in the GIS graphically and include attribution for all database fields listed below. All unnamed streets included in the street centerline layer are required to have the designation “DRVW” entered in the ‘street name (ST_NAME)’ field and have any other relevant attribute information completed, including the ‘CLASS’ field. When a street centerline is created or edited, several sources and methods can be used, including current aerial imagery, georeferenced survey plats, computer-aided design (CAD) files, parcels, mapping-grade GPS units in the field, or other authoritative sources or methods. The positional accuracy of addressed structures should be within +/- 5 feet of the center of the roadbed (the part on which vehicles travel) noting that when roadways are divided (i.e by a median) the roadbeds on each side should have a centerline drawn. In all cases each new street centerline will need to be split, or checked for gaps, at each jurisdiction and ESN line/boundary intersection. Street segment direction must be correct as well. These items and other geometric relationships are referred to as “topology”, and especially important for NG9-1-1 purposes.
Appears in 4 contracts
Samples: Capital Area Emergency, Capital Area Emergency, Capital Area Emergency
