Description: Following is a description of all fields in the Streets feature class:Shape Geometry: (Line)StreetID: Integer – Read only field (cannot be updated by GIS Link).ExternalStreetKey: String (36) - Required - Unique key used to link a street in source data with the corresponding street in VisiCAD. This field should include two upper case letters, a dash and numbers. For example: OC-24979, SC-545494222 and TR-1041.StreetName:String (100) – Complete street name (Directional + Street Name + Street Type).LeftFromAddress:Integer – The address on the left side of the street at the from-nodeLeftToAddress:Integer - The address on the left side of the street at the to-nodeRightFromAddress: Integer - The address on the right side of the street at the from-nodeRightToAddress:Integer - The address on the right side of the street at the to-nodeLeftParity:String (1) – Field to be used in future version of GISLink to maintain address parity. In the current version of GISLink, values in this field must contain an L.RightParity: String (1) – Field to be used in future version of GISLink to maintain address parity. In the current version of GISLink, values in this field must contain an R.LeftCityCode: String (10) – City code (as defined in the Cities table) corresponding to the left side of the street.RightCityCode: String (10) - City code (as defined in the Cities table) corresponding to the right side of the street.LeftCountyCode: String (5) – County code (form the Counties table) corresponding to the left side of the street.RightCountyCode: String (5) – County code (from the Counties table) corresponding to the right side of the street.LeftState:String (3) – State abbreviation corresponding to the left side of the street.RightState: String (3) - State abbreviation corresponding to the right side of the streetFeatureTypeCode: String (3) – TriTech-defined street type code (example: A10, A30, A40).SpeedLimit:Integer (4) – If street limits are not assigned in your source data, use those associated with the TriTech-defined street codes.LeftZipCode: String (10) – The ZIP code corresponding to the left side of the street. RightZipCode: String (10) – The ZIP code corresponding to the right side of the street. OneWayCode:String (1) – Value used to indicate the direction of travel for a street. If one way values are not used, use an expression to define a default value of B in your GISLink Translation Specification.B = travel in both directionsF = travel only in the direction of the from-node to the to-node.T = travel only in the direction of the to-node to the from-node.FromElevation: Integer (4) – Logical Elevation value at the from-node. This value is not an indication of actual elevation. Instead, nodes that connect with the same logical elevation value are considered connected and routable. If the elevation values are not used, use an expression to define a value of zero in your GISLink translation specification.ToElevation:Integer (4) – Logical Elevation value at the to-node. This value is not an indication of actual elevation. Nodes that connect with the same logical elevation value are considered connected and routable. If the elevation values are not used, use an expression to define a value of zero in your GISLink translation specification.LocationName: String (400) – Special field used to describe an address range (this field is currently not being used). OCFARALeft:String (11) – External key of the response area assigned to the left side of the street. OCFARARight: String (11) - External key of the response area assigned to the right side of the street.RoutingStreetExtKey: String (36) – This feature allows any street (specifically designed for one that is to be used as a ROW) to be assigned to use another street for routing. Currently not being used.LeftServiceProviderAreaExtKey: String (36) – Currently not being used.RightServiceProviderAreaExtKey: String (36) – Currently not being used.LeftUncArea:String (3) – Left UNC code.RightUncArea: String (3) – Right UNC code.FRD_Quad:String (6) – District Grid Quads.LeftASA:String (7) – Left Ambulance Service Area.RightASA: String (7) – Right Ambulance Service Area.SRA_FRA_Threat: String (8) – State Responsibility Areas, Federal Responsibility Areas and Mutual Threat Zones combined.SAM_Ref: String (7) – Special Area Map areas.MTZ:String (20) – Mutual Threat Zones.TB_Grid: String (6) – Thomas Brothers Grids.FirstDue:String (5) – First Due Stations.TB_SAM: String (13) – Thomas Brothers and Special Area Maps combined.Shape_Length: Double (8) – Line length in feet.