METADATA FOR FIXED-GUIDEWAY TRANSIT AND FERRY NETWORK

VERSION 02 RELEASE 01

 

Identification_Information:

 

Citation:

  Originator:  Bureau of Transportation Statistics, (comp.)

  Publication_Date: 2001

  Title: Fixed-Guideway Transit and Ferry Network

  Publication_Information:

    Publication_Place:  Washington, DC

    Publisher:  Bureau of Transportation Statistics

  Larger_Work_Citation:

    Originator: Bureau of Transportation Statistics

    Publication_Date:   2001

    Title: National Transportation Atlas Databases (NTAD) 2001

    Publication_Information:

      Publication_Place:  Washington, DC

      Publisher:  Bureau of Transportation Statistics

    

Description:

  Abstract:  The Fixed-Guideway Transit and Ferry Network is

       a comprehensive network database of the nation's

       fixed-guideway transit and ferry systems.  The data

       set covers systems in cities within the 48 contiguous

       States plus the District of Columbia and Puerto Rico,

       and includes heavy rail, light rail, monorail, ferry

       boat, cable car, dedicated HOV roadway, inclined

       plane, and automated guideway.

  Purpose:  The data provide users with information about

       the location and type of fixed-guideway transit and

       ferry network and terminal facilities primarily for

       regional  cartographic, spatial and network analysis purposes.

 

Time_Period_of_Content:

  Range_of_Dates/Times:

    Beginning_Date:  1994

    Ending_Date:  present

  Currentness_Reference: ground conditions

 

Status:

  Progress: In work

  Maintenance_and_Update_Frequency:  As required

 

Spatial_Domain:

  Bounding_Coordinates:

    West_Bounding_Coordinate:  -167.930283

    East_Bounding_Coordinate:   -65.311089

    North_Bounding_Coordinate:   61.132835

    South_Bounding_Coordinate:   18.145645

 

Keywords:

  Theme:

    Theme_Keyword_Thesaurus:  None

    Theme_Keyword:  network

    Theme_Keyword:  transportation

    Theme_Keyword:  fixed-guideway

    Theme_Keyword:  transit

    Theme_Keyword:  light rail

    Theme_Keyword:  heavy rail

    Theme_Keyword:  monorail

    Theme_Keyword:  ferry boat

    Theme_Keyword:  inclined plane

    Theme_Keyword:  cable car

    Theme_Keyword:  automated guideway

    Theme_Keyword:  high-occupancy vehicle lanes

  Place:

    Place_Keyword_Thesaurus:  None

    Place_Keyword:  United States

    Place_Keyword:  US Territories

 

Access_Constraints: None

 

Use_Constraints: None.  Acknowledgment of the Bureau of

    Transportation Statistics National Transportation Atlas

    Database would be appreciated in products derived from

    these data.

 

 

                   Data_Quality_Information:

 

Attribute_Accuracy:

  Attribute_Accuracy_Report: Attribute information was

      obtained from individual transit agencies through

      telephone conversations and follow-up written material

      provided by the agency.  The level of detail and

      completeness of this information varied, depending on

      the source.  Attribute data were transcribed directly

      into the database with no independent verification.

 

      This version of the data set includes no node attributes.

 

      When modifying the data set, the provider did not

      consistently code the MODDATE or the REVISION field.

 

  Logical_Consistency_Report:  Networks were checked for

      connectivity during database construction and again

      prior to dissemination on the National Transportation

      Atlas CD-ROM.  Duplicate links were removed.

 

      In the process to verify feature location based on the

      NTAD STATES dataset, the verifier split a number of

      line segments.  Based on the attributes included in the

      dataset, there is no apparent reason for these

      modifications.

 

      The data provider inconsistently coded the LINKID and

      FEATURID fields when modifying the data set.

 

  Completeness_Report: This database includes all

      fixed-guideway transit and ferry lines identified by

      the Federal Transit Administration as recipients of

      Federal transit funding.  Excluded are some small

      fixed guideway systems operating without Federal

      funding and certain ferry lines which may receive

      Federal Highway funding in lieu of transit funding.

      Attribute data is incomplete at this time, and what

      data is included reflects information received from

      individual transit agencies during 1994. 

 

Positional_Accuracy:

  Horizontal_Positional_Accuracy:

    Horizontal_Positional_Accuracy_Report: Right-of-ways for

        fixed guideways were digitized from a variety of

        source material received from individual transit

        agencies.  These materials ranged from engineering

        drawings to stylized system maps.  Based on the

        material provided, alignments were traced against

        TIGER/Line street networks as basemaps. At best, the

        resulting alignments are no more accurate than the

        TIGER/Line street network for specific urban areas.

 

        A number of ferry lines were added that appear to cross

        through islands when compared with the NTAD STATES

        dataset.

 

Lineage:

  Source_Information:

    Source_Citation:

      Originator: Bureau of the Census

      Publication_Date: 1992

      Title: TIGER/Line Files

      Geospatial_Data_Presentation_Form:  map

      Publication_Information:

        Publication_Place: Washington, DC

        Publisher: Bureau of the Census

      Type_of_Source_Media: CD-ROM

      Source_Time_Period_of_Content:

      Range_of_Dates/Times:

        Beginning_Date:  1992 04

        Ending_Date:  1992 12

      Source_Currentness_Reference:  publication date

      Source_Citation_Abbreviation: TIGER 92

      Source_Contribution: Locational reference with respect

          to other urban transportation features.

 

Process_Step:

  Process_Description: Using source materials received

      from individual transit agencies, fixed guideway

      centerline networks were digitized against TIGER

      street networks.  Stations were located using

      addresses and other cues provided from the source

      material.  Each fixed guideway system was put in its

      own database.

    Source_Used_Citation_Abbreviation: TIGER 92

    Process_Date:  1994

    Source_Produced_Citation_Abbreviation:  several

 

Process_Step:

  Process_Description: Individual transit lines were

      concatenated into sets of network files based on

      transit type.

    Source_Used_Citation_Abbreviation:  several

    Process_Date:  1995

    Source_Produced_Citation_Abbreviation: FTA-AG

    Source_Produced_Citation_Abbreviation: FTA-CC

    Source_Produced_Citation_Abbreviation: FTA-CR

    Source_Produced_Citation_Abbreviation: FTA-FB

    Source_Produced_Citation_Abbreviation: FTA-HOV

    Source_Produced_Citation_Abbreviation: FTA-HR

    Source_Produced_Citation_Abbreviation: FTA-IP

    Source_Produced_Citation_Abbreviation: FTA-LR

    Source_Produced_Citation_Abbreviation: FTA-MR

   

Process_Step:

    Process_Description: The different transit type layers

        were merged into a single dataset.

    Source_Used_Citation_Abbreviation: FTA-AG

    Source_Used_Citation_Abbreviation: FTA-CC

    Source_Used_Citation_Abbreviation: FTA-CR

    Source_Used_Citation_Abbreviation: FTA-FB

    Source_Used_Citation_Abbreviation: FTA-HOV

    Source_Used_Citation_Abbreviation: FTA-HR

    Source_Used_Citation_Abbreviation: FTA-IP

    Source_Used_Citation_Abbreviation: FTA-LR

    Source_Used_Citation_Abbreviation: FTA-MR

    Process_Date:  1995

    Source_Produced_Citation_Abbreviation: TRANSIT

 

Process_Step:

    Process_Description:  The TRANSIT dataset was compared

        with the NTAD STATES dataset to verify the correct

        feature location based on the State FIPS Code.

    Source_Used_Citation_Abbreviation: STATES

    Process_Date:  1997

 

  Process_Description: After completing topological and attribute

      verification using ARC/INFO, the data was extracted and

      reformatted into the BTS ACSII format.

 

 

            Spatial_Data_Organization_Information:

 

Direct_Spatial_Reference_Method: Vector

  Point_and_Vector_Object_Information:

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type:  Network chain,

           non-planar graph

        Point_and_Vector_Object_Count: 2091 Polylines

 

                  Spatial_Reference_Information:

 

Horizonta_Coordinate_System_Definition:

  Geographic:

    Latitude_Resolution: unknown

    Longitude_Resolution: unknown

    Geographic_Coordinate_Units:  Decimal degrees

  Geodetic_Model:

    Horizontal_Datum_Name:  North American Datum of 1983

    Ellipsoid_Name:  Geodetic Reference System (GRS) 1980

 

 

                Entity_and_Attribute_Information:

 

Detailed_Description:

  Entity_Type:

    Entity_Type_label:  TRANSIT.SHP  

    Entity_Type_Definition: ESRI Shapefile

    Entity_Type_Definition_Source: Environmental Systems Research Institute, Inc. (ESRI)

Overview_Description:

  Entity_and_Attribute_Overview:

Entity_and_Attribute_Detail_Citation:

Attribute:

  Attribute_Label: SHAPE

  Attribute_Definition: The SHAPE attribute is a data attribute inherent to the ESRI shapefile format.  It defines the vector data as a point,

        polyline, or polygon.  For further information concerning the definition of SHAPE, consult ESRI documentation.

      Attribute_Definition_Source: ESRI and BTS

      Attribute_Domain_Values:

            Enumerated_Domain:

                  Enumerated_Domain_Value: Polyline      

                     Enumerated_Domain_Value_Definition: A Polyline is a single geometric segment defined by two end points.              Enumerated_Domain_Value_Definition_Source: ESRI and BTS

Attribute:

  Attribute_Label:  VERSION

  Attribute_Definition:  The VERSION is a 2-digit number that will be incremented for all records in the database whenever a new release is distributed.

  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

Attribute:

  Attribute_Label:  REVISION

  Attribute_Definition:  The REVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields.  (Revision numbers will not be reset with each new release.)  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

Attribute:

  Attribute_Label:  MODDATE

  Attribute_Definition:  Record Modification Date

  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

Attribute:

  Attribute_Label:  FEATURID

  Attribute_Definition: Unique Identification for each line

  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

 Attribute:

  Attribute_Label:  LINKID

  Attribute_Definition: Unique Identification for each line

  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

Attribute:

  Attribute_Label:  STFIPS

  Attribute_Definition:  Two digit State FIPS Code

  Attribute_Definition_Source:  FIPS Pub 6-4

  Attribute_Domain_Values:

    Codeset_Domain:

      Codeset_Name: Federal Information Processing Standard

Attribute:

  Attribute_Label: DESCRIPT

  Attribute_Definition:  Name or identification for the

      line - type of transit system

  Attribute_Definition_Source:  Assigned

  Attribute_Domain_Values:

    Enumerated_Domain:

      Enumerated_Domain_Value:  >MONORAIL

                                >INCLINED PLANE

                                >CABLE CAR

                                >FERRY BOAT

                                >AUTOMATED GUIDEWAY

                                >HOV LANES

                                >LIGHT RAIL

                                >HEAVY RAIL

Attribute:

  Attribute_Label:  RTS_SRVD

  Attribute_Definition:  Name of the route served by the

      link.

  Attribute_Definition_Source: 

  Attribute_Domain_Values:

Attribute:

  Attribute_Label: GRD_ELEV

  Attribute_Definition:  Code defining the grade/elevation

      of the link

  Attribute_Definition_Source: 

  Attribute_Domain_Values:

    Enumerated_Domain:

      Enumerated_Domain_Value:     

          >1  -  At grade

          >2  -  Elevated

          >3  -  Below grade

          >4  -  On structure

Attribute:

  Attribute_Label: TR_TYPE

  Attribute_Definition:  Type of transit system

  Attribute_Definition_Source: 

  Attribute_Domain_Values:

    Enumerated_Domain:

      Enumerated_Domain_Value:   

          >AG  -  Automated Guideway 

          >CC  -  Cable Car

          >FB  -  Ferry Boat

          >HOV -  High-occupancy vehicle lanes

          >HR  -  Heavy Rail

          >IP  -  Inclined Plane

          >LR  -  Light Rail

          >MR  -  Monorail

Attribute:

  Attribute_Label:  UZA

  Attribute_Definition:  Urbanized Area Name

  Attribute_Definition_Source: 

  Attribute_Domain_Values:

Attribute:

  Attribute_Label: STATUS

  Attribute_Definition:  Current status of the link

  Attribute_Definition_Source: 

  Attribute_Domain_Values:

    Enumerated_Domain:

      Enumerated_Domain_Value: 

          >1  -  Planned

          >2  -  Out of service

          >3  -  Active

          >4  -  Construction

          >   -  Not defined

 

 

                     Distribution Information:

 

Distributor:

  Contact_Organization_Primary:

    Contact_Organization: BTS Product Distribution Center

  Contact_Address:

    Address_Type:  mailing and physical address

    Address:  400 Seventh Street, SW

    City:  Washington

    State_or_Province:  District of Columbia

    Postal_Code:  20590

  Contact_Voice_Telephone:  (202) 366-DATA

  Contact_Facsimile_Telephone:  202) 366-3640

  Contact_Electronic_Mail_Address: answers@bts.gov

 

 Resource_Description: National Transportation Atlas

    Databases 2001

 

Distribution_Liability:  None

 

Standard_Order_Process:

  Digital_Form:

    Digital_Transfer_Information:

      Format_Name: The BTS standard format

          for spatial data is an interim format for

          distributing National Transportation Atlas

          Databases pending final approval of an SDTS

          Transportation Network Profile (TNP).  The BTS

          standard format consists of a linked set of ASCII

          fixed record length files.  File formats and data

          dictionary for the BTS standard format are

          described in the document,  National

          Transportation Atlas Data Dictionary and Database

          Formats', September 1995.  Copies of this

          documentation are distributed with each National

          Transportation Atlas Database.

      File_Decompression_Technique: No compression applied.

          However, if using digital transfer online option,

          note access instructions.

        Transfer_Size: 1.0 megabytes

 

    Digital_Transfer_Option:

      Online_Option:

        Computer_Contact_Information:

          Network_Address:

            Network_Resource_Name: www.bts.gov/gis/

 

        Access_Instructions: Anyone with access to the Internet

            may connect to the BTS web server.  To access a

            specific data set, go to the web address listed above

            in the Network Resource Name.  The BTS server allows

            allows visitors to create an archive package for

            download in one of three common formats:

              .zip - an MS-DOS zip archive;

              .tgz - a gzip-ed unix tar archive; and

              .tar - a unix tar archive. 

            This archived package is stored in a temporary

            file which can then be copied to the visitor's

            home directory. 

 

        Online_Computer_and_Operating_System: Sun Ultra running

            Solaris 2.6 operating system.

 

      Offline_Option:

        Offline_Media:  CD-ROM

          Recording_Capacity:

            Recording_Density:  650

            Recording_Density_Units: megabytes

          Recording_Format:   ISO 9660

          Compatibility_Information: CD-ROM is available in

              either MS-DOS or UNIX compatible record formats.

       

  Fees:  none

Ordering_Instructions: Call (202) 366-DATA, fax (202) 366-3640,

     or E-mail (answers@bts.gov)BTS to request the National  

        Transportation Atlas Databases 2001 CD-ROM. 

This and other BTS products may be ordered from the BTS Internet site (www.bts.gov).

 

                   Metadata_Reference_Option:

 

Metadata_Date:  1995 08 30

Metadata_Review_Date: 2001 05

Metadata_Contact:

  Contact_Organization_Primary:

    Contact_Organization: Bureau of Transportation

        Statistics

  Contact_Address:

    Address_Type:  mailing address 

    Address: 400 Seventh Street, SW

    City: Washington

    State_or_Province: DC

    Postal_Code: 20590

  Contact_Voice_Telephone:  (202) 366-DATA

  Contact_Facsimile_Telephone:  (202) 366-3640

  Contact_Electronic_Mail_Address: answers@bts.gov

Metadata_Standard_Name:  FGDC Content Standards for Digital

    Geospatial Metadata

Metadata_Standar_Version:  FGDC-STD-001-1998 (Version 2.0)