Description: This layer contains the major transportation areas that were originally captured in 1997 then subsequently updated with 2009 stereo imagery in 2011-2013 for Fairfax County. These different sources of the major transportation edges are indicated within the major transportation edges attributes.
Copyright Text: The portion of the data set in the southeastern quadrant of Fairfax County with a source of "2007 Stereo Models" was created by GeoDecisions/Fugro EarthData, Inc. The portion of the data set in the rest of the County and with a source of "2009 Stereo Models" in the southeastern quadrant was created by GeoDecisions/Infotech, Inc. All quadrants were under contract to Fairfax County. Quality control checks were performed by Plangraphics. Staff from the GIS branch were also used for quality control checking 1997: The data set was created by Analytical Surveys Incorporated (ASI) and Landata under contract to Fairfax County. Quality control checks were performed by Engineering Systems Incorporated and Dewberry and Davis. Staff from the GIS branch were also used for quality control checking.
PERVIOUSNESS (type: esriFieldTypeString, alias: PERVIOUSNESS, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true, Coded Values: [IMPERVIOUS: Completely impervious], [PERVIOUS: Completely pervious], [MIXED: At least 10% of pervious or impervious])
RAISED (type: esriFieldTypeString, alias: RAISED, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true, Coded Values: [Y: Median is elevated], [N: Median is not elevated or its a road])