Main roads

Frequently-asked questions:


What does this data set describe?

Title:
Main roads

Abstract:
Line layer (roads) 1:1000000 scale. created from data VMap0

  1. How should this data set be cited?

    NGA (National Geospatial-Intelligence Agency), VMap0, Eugene Simonov, Eugene Egidarev, 2000, Main roads: http://geoengine.nga.mil.

    Online links:
  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: 99.277993
    East: 146.099609
    North: 59.809307
    South: 36.036766

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning date: 30.01.2000
    Beginning time: unknown
    Ending date: 01.04.2008
    Currentness reference:
    publication date

  5. What is the general form of this data set?

    Geospatial data presentation form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • String (19153)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

  7. How does the data set describe geographic features?

    trans-road-l
    locations of roads
    (Source:
    Data VMap0
    )

    FID
    Internal feature number.
    (Source:
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    F_CODE
    FACC Feature Code

    EXS
    Existence Category

    Value Definition
    5
    Doubtful
    28
    Under Construction
    55
    Operational
    59
    Unexamined/Unsurveyed

    Shape
    Feature geometry.
    (Source:
    ESRI
    )

    Coordinates defining the features.

    ID
    special field

    EXS_DESCRI
    description of "exs" field
    (Source:
    "exs" field
    )

    EDG_ID
    special field

    ACC
    Accuracy Category

    Value Definition
    1
    Accurate
    2
    Approximate

    ACC_DESCRI
    description of "acc" field
    (Source:
    from"acc" field
    )

    Accurate

    Approximate

    TILE_ID
    Special field

    Value Definition
    1-20
    Special field

    F_CODE_DES
    description of "f_code" field
    (Source:
    from "f_code" field
    )

    MED
    Median Category

    Value Definition
    0
    Unknown
    1
    With Median
    2
    Without Median

    MED_DESCRI
    description of "med" field
    (Source:
    from "med" field
    )

    RTT
    Route Intended Use

    Value Definition
    0
    Unknown
    14
    Primary Route
    15
    Secondary Route

    RTT_DESCRI
    description of "rtt" field
    (Source:
    from "rtt" field
    )

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Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)


  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Eugene Egidarev, Eugene Simonov
    WWF , Amur Branch
    Russia Vladivostok
    18a, Verkhneportovaya St.
    Vladivostok, Primorskii krai 690003
    Russia

    +7 9242311633 (voice)
    +7 4232 414863 (FAX)
    Egidarev@wwfrfe.ru
    eugene simonov <esimonovster@gmail.com>
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Why was the data set created?

To show all main roads in Amur River basin on topomaps.

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How was the data set created?

  1. Where did the data come from?

    (source 1 of 1)

    NGA (National Geospatial-Intelligence Agency), 09 2000, Railroads (VMap0).

    Online links:
    Type of source media: Downloaded DATA Vmap0 http://geoengine.nga.mil
    Source scale denominator: 1:1000000
    Source contribution:
    Topomaps ONC (Operational Navigation Chart) Scale 1:1000000

  2. What changes have been made?

    Date: 2006 (change 1 of 1)
    Clip and merge data on amur region from all source(VMap0)

    Person responsible for change:
    Eugene Egidarev
    egidarev@wwfrfe.ru

    Data sources used in this process:
    • trans-road-l

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How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

    Горизонтальная (плановая) точность: 2040 м (доверительный интервал 90%)

  3. How accurate are the heights or depths?

    Вертикальная точность: 152.4 м (доверительный интервал 90%)

  4. Where are the gaps in the data? What is missing?

    Layer is old, reflects situation in early 1990s which changed significantly. Both road routes and attributes need update.

  5. How consistent are the relationships among the observations, including topology?

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How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access constraints: Data VMap0 free, layer updated- permission WWF Amur Branch
Use constraints:
Free, when using reference to authors required.

Distributor 1 of 1

  1. Who distributes the data set?

    WWF Amur Branch
    18a, Verkhneportovaya St.
    Vladivostok, Primorskii krai 690003
    Russia

  2. What's the catalog number I need to order this data set?

    Downloadable Data is free http://geoengine.nga.mil

  3. What legal disclaimers am I supposed to read?

    Data VMap0 free, layer updated- permission WWF Russia, Amur Branch

  4. How can I download or order the data?

    • Availability in digital form:


    • Data format:
      Size: 4.033

  5. Is there some other way to get the data?

  6. What hardware or software do I need in order to use the data set?

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Who wrote the metadata?

Dates:
Last modified: 20080311

Metadata author:
Egidarev Eugene
WWF Russia, Amur Branch
Russia, Vladivostok
18a Verkhneportovaya str
Vladivostok, Primorskii krai 690003
Russia

+79242311633 (voice)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:
  • http://www.esri.com/metadata/esriprof80.html

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