Layers:

Layer: NWN_with_ForeignLinework (0)

Name: NWN_with_ForeignLinework

Display Field: nwn_type

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: This file geodatabase contains an AIS-based polyline feature class that is a suitable update or replacement of the existing National Waterway Network (NWN). The polyline features are to be used for mapping commonly used vessel trips, use in a network dataset or network data model for routing current or historical trips, and for calculating measures within a linear referencing system (LRS). To improve compatibility with legacy NWN processes, this product retains legacy NWN waterway names and 4-digit waterway identifiers where possible; however, not all legacy waterways are maintained and there are many new waterway segments that were produced during the analysis. Source AIS GPS waypoint data, which were collected by the U.S. Coast Guard (USCG) through an onboard navigation safety device that transmits and monitors the location and characteristics of vessels in U.S. and international waters in real time, were obtained for four years from 2018 to 2021 and filtered to only include commercial vessels from “marinecadastre.gov” (https://marinecadastre.gov/ais/). The methodology used to create this product includes:Obtaining historical AIS waypoint GPS data from 2018 to 2021.Processing the AIS waypoint data into vessel track lines.Processing vessel track lines into a trip density raster dataset where each pixel contains the number of vessels passing through the cell.Processing of the vessel density data into a cost surface that incorporates physical features.Solving a least-cost path (LCP) and optimal regional connections (ORC) analysis to generate polyline features depicting paths connecting important navigation features such as ports.Processing and review to attribute and produce the final polyline features.

Service Item Id: 8ede84a32de5461292c50c2c69f752fa

Copyright Text: • Abt Associates, Inc (2023) • The “marinecadastre.gov” is a joint effort of the Bureau of Ocean Energy Management (BOEM), the National Oceanic and Atmospheric Administration (NOAA), and the USCG Navigation Center to provide extracted and processed AIS data containing information such as location, time, vessel type, speed, length, beam, and draft and prepared for analyses in desktop GIS software.

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:
XMin: -179.99999999999997
YMin: -62.60272418699998
XMax: 180.0000000000001
YMax: 78.23423485800004
Spatial Reference: 4326  (4326)



Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: nwn_type
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
Style: esriSLSSolid
Color: [130, 130, 130, 255]
Width: 1
Default Label:
UniqueValueInfos:
• Value: NWN
  Label: NWN
  Description: N/A
  Symbol:
  Style: esriSLSSolid
  Color: [255, 0, 0, 255]
  Width: 1
• Value: Nav unit connection
  Label: Nav unit connection
  Description: N/A
  Symbol:
  Style: esriSLSSolid
  Color: [85, 255, 0, 255]
  Width: 1
• Value: Open water
  Label: Open water
  Description: N/A
  Symbol:
  Style: esriSLSSolid
  Color: [0, 92, 230, 255]
  Width: 1
• Value: Open water/Foreign connections
  Label: Open water/Foreign connections
  Description: N/A
  Symbol:
  Style: esriSLSSolid
  Color: [169, 0, 230, 255]
  Width: 1
Transparency: 0
Labeling Info:
Advanced Query Capabilities:
Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: false
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: false
Supports Binning LOD: true
Supports Query With LOD Spatial Reference: true
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true


HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: nwn_type

Fields:
• objectid ( nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: objectid, alias: OBJECTID )
• nwn_type ( nullable: true, editable: true, defaultValue: null, length: 55, type: esriFieldTypeString, modelName: nwn_type, alias: NWN_Type )
• ais_waterway_id ( nullable: true, editable: true, defaultValue: null, length: 5, type: esriFieldTypeString, modelName: ais_waterway_id, alias: AIS_Waterway_ID )
• legacy_nwn_waterway ( nullable: true, editable: true, defaultValue: null, length: 10, type: esriFieldTypeString, modelName: legacy_nwn_waterway, alias: Legacy_NWN_Waterway )
• legacy_nwn_waterway_river_name ( nullable: true, editable: true, defaultValue: null, length: 35, type: esriFieldTypeString, modelName: RIVERNAME, alias: Legacy_NWN_Waterway_River_Name )
• channelareaidfk ( nullable: true, editable: true, defaultValue: null, length: 50, type: esriFieldTypeString, modelName: channelareaidfk, alias: CHANNELAREAIDFK )
• ncf_depthmaintained ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeDouble, modelName: ncf_depthmaintained, alias: NCF_depthmaintained )
• depth_type ( nullable: true, editable: true, defaultValue: null, length: 512, type: esriFieldTypeString, modelName: depth_type, alias: Depth_Type )
• state ( nullable: true, editable: true, defaultValue: null, length: 2, type: esriFieldTypeString, modelName: state, alias: STATE )
• fips ( nullable: true, editable: true, defaultValue: null, length: 2, type: esriFieldTypeString, modelName: fips, alias: FIPS )
• non_us ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeInteger, modelName: non_us, alias: Non_US )
• river_name ( nullable: true, editable: true, defaultValue: null, length: 255, type: esriFieldTypeString, modelName: river_name, alias: River_Name )
• link_number ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeInteger, modelName: link_number, alias: Link_Number )
• length_geodesic_meters ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeDouble, modelName: length_geodesic_meters, alias: Length_Geodesic_Meters )
• length_source ( nullable: true, editable: true, defaultValue: null, length: 512, type: esriFieldTypeString, modelName: length_source, alias: Length_Source )
• shape_source ( nullable: true, editable: true, defaultValue: null, length: 512, type: esriFieldTypeString, modelName: shape_source, alias: Shape_Source )
• last_modified ( nullable: true, editable: true, defaultValue: null, length: 512, type: esriFieldTypeString, modelName: last_modified, alias: Last_Modified )
• date_modified ( nullable: true, editable: true, defaultValue: null, precision: 1, length: 29, type: esriFieldTypeDate, modelName: date_modified, alias: Date_Modified )
• orig_fid ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeInteger, modelName: orig_fid, alias: ORIG_FID )
• orig_seq ( nullable: true, editable: true, defaultValue: null, type: esriFieldTypeInteger, modelName: orig_seq, alias: ORIG_SEQ )
• SHAPE__Length ( virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Length, type: esriFieldTypeDouble )
Types:
ID: NWN
Name: NWN
Domains:
Templates:
• Name: NWN
  Description:
  Prototype:
  river_name: null
  link_number: null
  ncf_depthmaintained: null
  shape_source: null
  fips: null
  ais_waterway_id: null
  orig_fid: null
  orig_seq: null
  non_us: null
  date_modified: null
  channelareaidfk: null
  nwn_type: null
  legacy_nwn_waterway: null
  depth_type: null
  state: null
  length_geodesic_meters: null
  legacy_nwn_waterway_river_name: null
  last_modified: null
  length_source: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: Nav unit connection
Name: Nav unit connection
Domains:
Templates:
• Name: Nav unit connection
  Description:
  Prototype:
  river_name: null
  link_number: null
  ncf_depthmaintained: null
  shape_source: null
  fips: null
  ais_waterway_id: null
  orig_fid: null
  orig_seq: null
  non_us: null
  date_modified: null
  channelareaidfk: null
  nwn_type: null
  legacy_nwn_waterway: null
  depth_type: null
  state: null
  length_geodesic_meters: null
  legacy_nwn_waterway_river_name: null
  last_modified: null
  length_source: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: Open water
Name: Open water
Domains:
Templates:
• Name: Open water
  Description:
  Prototype:
  river_name: null
  link_number: null
  ncf_depthmaintained: null
  shape_source: null
  fips: null
  ais_waterway_id: null
  orig_fid: null
  orig_seq: null
  non_us: null
  date_modified: null
  channelareaidfk: null
  nwn_type: null
  legacy_nwn_waterway: null
  depth_type: null
  state: null
  length_geodesic_meters: null
  legacy_nwn_waterway_river_name: null
  last_modified: null
  length_source: null
  
  Drawing Tool: esriFeatureEditToolLine

---

ID: Open water/Foreign connections
Name: Open water/Foreign connections
Domains:
Templates:
• Name: Open water/Foreign connections
  Description:
  Prototype:
  river_name: null
  link_number: null
  ncf_depthmaintained: null
  shape_source: null
  fips: null
  ais_waterway_id: null
  orig_fid: null
  orig_seq: null
  non_us: null
  date_modified: null
  channelareaidfk: null
  nwn_type: null
  legacy_nwn_waterway: null
  depth_type: null
  state: null
  length_geodesic_meters: null
  legacy_nwn_waterway_river_name: null
  last_modified: null
  length_source: null
  
  Drawing Tool: esriFeatureEditToolLine

---