National Transportation Dataset - Data Dictionary - Trans_RoadSegment

General Feature Class Attributes

Trans_RoadSegment

Field Name

county_route

• Description: County route
• Definition: All numeric identifiers designating the road segments that form a particular path through the transportation system. Values are separated by commas (with no spaces) with regular route numbers listed before designated route numbers. 
• Alias: County_Route
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: <Null>

federal_lands_route

• Description: Federal lands route
• Definition: A numeric or alphanumeric identifier designating the road segments that form a particular path through the transportation system leading to and traversing land owned by a Federal agency. The identifier is attributed by a Federal-level land management organization. (Field not currently populated by USGS.)
• Alias: Federal_Lands_Route
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: <Null>

globalid

• Description: Global identification
• Definition: A unique, system-managed identifier (a 128-bit UUID/GUID) automatically assigned to each feature or table row in ArcGIS Pro.
• Alias: GLOBALID
• Type: Global ID
• Usage: Index
• Nullable: False
• Precision: 0
• Scale: 0
• Length: 38
• Domain: Not applicable
• Default Value: Not applicable
• Editable: False
• Required: True
• Format: A 38-character, upper case alphanumeric text string with hyphens contained within curly brackets.
• Example: {62CE576F-EA2C-4F18-9546-D4F84BE493F8}

interstate

• Description: Interstate
• Definition: All numeric or alphanumeric identifiers designating the road segments that form a particular path, such as I-5, through the Interstate Highway System. Includes the Interstate number and Business, Bypass, Alternate, or Scenic designation. Values are separated by commas (with no spaces) with regular route numbers listed before designated route numbers. For example, “5,15,7,85,11” or “5,Byp,3,Alt,4”. 
• Alias: Interstate
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 5,Byp,3,Alt,4 or <Null>

interstate_a

• Description: Interstate A
• Definition: The first pair of interstate route values in the Interstate attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for an Interstate attribute value of “5,15,7,85,11”, the Interstate_A attribute contains a value of “5,15”. For an Interstate attribute value of “5,Byp,3,Alt,4”, Interstate_A contains a value of “5”. 
• Alias: Interstate_A
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 5,15 or <Null>

interstate_b

• Description: Interstate B
• Definition: The second pair of interstate route values in the Interstate attribute (if applicable). Used internally by USGS for labeling road shields on The National Map products and services. For example, for an Interstate attribute value of “5,15,7,85,11”, the Interstate_B attribute contains a value of “7,85”. For an Interstate attribute value of “5,Byp,3,Alt,4”, Interstate_B contains a value of “Byp,3”. 
• Alias: Interstate_B
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: Byp,3 or <Null>

interstate_c

• Description: Interstate C
• Definition: The third pair of interstate route values in the Interstate attribute (if applicable). Used internally by USGS for labeling road shields on The National Map products and services. For example, for an Interstate attribute value of “5,15,7,85,11”, the Interstate_C attribute contains a value of “11”. For an Interstate attribute value of “5,Byp,3,Alt,4”, Interstate_C contains a value of “Alt,4”. 
• Alias: Interstate_C
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: Alt,4 or <Null> 

loaddate

• Description: Load date
• Definition: Timestamp indicating when the feature or event was last loaded to the database, may indicate an approximate time the feature or event was last edited or reviewed.
• Alias: LoadDate
• Type: Date
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 8
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Month, day and year generally displayed as MM/DD/YYY with some values including the time generally displayed as HH:MM:SS with an AM or PM time qualifier. 
• Example: 4/12/2018 7:08:25 PM

mtfcc_code

• Description: MAF/TIGER feature class code
• Definition: U.S. Census Bureau MAF/TIGER feature class code. 
• Alias: MTFCC_Code
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 50
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric code, when populated. 
• Example: S1500 or <Null>

name

• Description: Name
• Definition: An identifying name given to a street that usually forms part of an address. 
• Alias: Name
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 100
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric string of characters with name and number of the identified road segment. 
• Example: State Rte 775 or <Null>

objectid

• Description: Object identification
• Definition: Internal feature or event number. 
• Alias: OBJECTID
• Type: Object ID
• Usage: Index
• Nullable: False
• Precision: 0
• Scale: 0
• Length: 4
• Domain: Not applicable
• Default Value: Not applicable
• Editable: False
• Required: True
• Format: Numeric, unique identifier up to eight characters
• Example: 16441947

permanent_identifier

• Description: Permanent identifier
• Definition: A 40-character globally unique ID (GUID) value that uniquely identifies the occurrence of each feature or event in The National Map. 
• Alias: Permanent_Identifier
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 40
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Generally a 36-character, lower case alphanumeric text string with hyphens. 
• Example: ad4ac086-4cf5-4546-8527-4c210bdb54f5

shape

• Description: Shape
• Definition: Feature geometry. 
• Alias: SHAPE
• Type: Geometry
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 0
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: True
• Format: May be a null value. Description of the type of spatial geometry. 
• Example: Polyline M

shape_Length

• Description: Shape length
• Definition: Length of the feature, which may differ from the field measured length due to differences in calculation. Units are map units. 
• Alias: SHAPE_Length
• Type: Double
• Usage: Length
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 8
• Domain: Not applicable
• Default Value: Not applicable
• Editable: False
• Required: True
• Format: May be a null value. Positive, numeric value up to eight characters in length.
• Example: 0.001421

source_datadesc

• Description: Data description source
• Definition: Brief narrative of the source dataset. 
• Alias: Source_DataDesc
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 100
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: Generally an alphanumeric text string with year and source description.
• Example: 2016 BAS Tiger/Line Shapefiles Release

source_datasetid

• Description: Dataset identification source
• Definition: Unique permanent ID value which uniquely identifies a source dataset used in The National Map. 
• Alias: Source_DatasetID
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 40
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Generally a 36-character, uppercase, alphanumeric text string with hyphens inside curly brackets. 
• Example: {5C7B1A37-0142-4036-908A-65D9EDE63A3}

source_featureid

• Description: Feature identification source
• Definition: Identifier of the feature or event in the source dataset. 
• Alias: Source_FeatureID
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 40
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Generally a string of numbers, up to 40 digits. 
• Example: 1104469157132

source_originator

• Description: Originator source
• Definition: Name of the organization or individual that developed the source dataset. 
• Alias: Source_Originator
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 130
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Generally a name of an organization (or individual) up to 130 characters. 
• Example: U.S. Department of Commerce, U.S. Census Bureau, Geography Division

state_route

• Description: State route
• Definition: All numeric identifiers designating the road segments that form a particular path, such as Texas State Highway 45, through a state highway system. Values are separated by commas (with no spaces) with regular route numbers listed before designated route numbers. For example, “35,45,55,65,75”. 
• Alias: State_Route
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 36 or <Null>

state_route_a

• Description: State route A
• Definition: The first pair of state route values in the State_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a State_Route attribute value of “35,45,55,65,75”, the State_Route_A attribute contains a value of “35,45”. 
• Alias: State_Route_A
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 49,45 or <Null>

state_route_b

• Description: State route B
• Definition: The second pair of state route values in the State_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a State_Route attribute value of “35,45,55,65,75”, the State_Route_B attribute contains a value of “55,65”.
• Alias: State_Route_B
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 55,65 or <Null>

state_route_c

• Description: State route C
• Definition: The third pair of state route values in the State_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a State_Route attribute value of “35,45,55,65,75”, the State_Route_C attribute contains a value of “75”. 
• Alias: State_Route_C
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 75 or <Null>

stco_fipscode

• Description: State/County federal information processing standard code
• Definition: A five-digit Federal Information Processing Standard (FIPS) numeric code that uniquely identifies counties and equivalent entities in the United States, its possessions, and associated States. The first two digits are the numeric code for a U.S. State and the last three digits are the numeric code for a county within the state or possession. 
• Alias: StCo_FIPSCode
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 5
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Five digit numeric code identifying the state and county (or its equivalent). 
• Example: 18037

tnmfrc

• Description: The National Map functional road classification
• Definition: The National Map functional road classification, a code used by the National Map for road symbolization. 
• Alias: TNMFRC
• Type: Long Integer
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 4
• Domain: FunctionalRoadClassification
• Default Value: 4
• Editable: True
• Required: False
• Format: May be a null value. Coded numeric value as defined by the FunctionalRoadClassification Domain.
• Example: 4

us_route

• Description: US route
• Definition: All numeric or alphanumeric identifiers designating the road segments that form a particular path, such as U.S. Highway 50, through the U.S. Highway System. It includes the US highway number and Business, Bypass, Alternate, or Scenic designation. Values are separated by commas (with no spaces) with regular route numbers listed before designated route numbers. For example “50,60,70,80,90” or “36,Bus,9,Alt,11”. 
• Alias: US_Route
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. Alphanumeric values separated by a comma, when populated. 
• Example: 36,Bus,9,Alt,11 or <Null>

us_route_a

• Description: US route A
• Definition: The first pair of US Route values in the US_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a US_Route attribute value of “50,60,70,80,90”, the US_Route_A contains a value of “50,60”. For US_Route attribute value of “36,Bus,9,Alt,11”, US_Route_A contains contains a value of “36”. 
• Alias: US_Route_A
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. 
• Example: 36 or <Null>

us_route_b

• Description: US route B
• Definition: The second pair of US Route values in the US_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a US_Route attribute value of “50,60,70,80,90”, the US_Route_B contains a value of “50,60”. For US_Route attribute value of “36,Bus,9,Alt,11”, US_Route_B contains contains a value of “Bus,9”. 
• Alias: US_Route_B
• Type: String
• Usage: Index
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. 
• Example: Bus,9 or <Null>

us_route_c

• Description: US route C
• Definition: The third pair of US Route values in the US_Route attribute. Used internally by USGS for labeling road shields on The National Map products and services. For example, for a US_Route attribute value of “50,60,70,80,90”, the US_Route_C contains a value of “90”. For US_Route attribute value of “36,Bus,9,Alt,11”, US_Route_C contains contains a value of “Alt,11”. 
• Alias: US_Route_C
• Type: String
• Usage: Not applicable
• Nullable: True
• Precision: 0
• Scale: 0
• Length: 25
• Domain: Not applicable
• Default Value: Not applicable
• Editable: True
• Required: False
• Format: May be a null value. 
• Example: Alt, 11 or <Null>