MAP LAYERS |
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LAYER NAME: |
KEROADS |
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AUTHOR/CREATOR: |
DCW |
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ORGANIZATION: |
DCW |
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LINK URL: |
http://www.princeton.edu/~geolib/gis |
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CREATION DATE: |
1993 |
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MODIFIED BY: |
DATA AND INFORMATION MANAGEMENT UNIT UNDP_SOMALIA |
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MODIFICATION DATES: |
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ABSTRACT: |
Roads were extracted from DCW. |
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CONSTRAINTS: |
Acknowledgment of DCW, UNDP and ESRI would be appreciated in products derived from these data. The data should not be used for navigation or for
producing maps requiring high geodetic accuracy. |
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DATASET SIZE: |
776KB |
STATUS |
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BOUNDING
COORDINATES |
EAST: 43.9431 NORTH: 8.8044 |
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WEST: 31.9862 SOUTH -5.9274
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POSITIONAL
ACCURACY: |
The
absolute horizontal accuracy of the DCW for all features derived from
Operational Navigation Charts (ONC) is 2040 meters (6700 feet) rounded to the
nearest 5 meters at 90% Circular Error (CE), World Geodetic System (WGS84).
The
absolute horizontal accuracy of the DCW for all features derived from Jet
Navigation Charts (JNC)
is 4270 meters (14006 feet) at 90% Circular Error.
The absolute vertical accuracy of the DCW is the same as for the original ONC and JNC lithographs at 90% Linear Error (LE), Mean Sea Level (MSL).. |
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COORDINATE SYSTEM: |
DECIMAL DEGREES |
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DATUM: |
WGS 84 |
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MAP PROJECTION: |
GEOGRAPHICAL |
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FORMAT |
ARCVIEW 3.1, SHAPEFILE. |
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TABLES |
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SOURCE: |
DCW |
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SOURCE PUBLICATION
DATE: |
1996 |
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CONSTRAINTS: |
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DATASET SIZE : |
570KB |
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ATTRIBUTE
RELIABILITY: |
UNKNOWN |
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STATUS: |
COMPLETE |
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FIELDS: |
SEE ATTACHED FORM |
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CONTACT NAME: |
Alex Lugadiru |
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ORGANIZATION: |
DEPHA PROJECT |
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POSTAL ADDRESS: |
c/o UNDP DDC P.O. |
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EMAIL ADDRESS: |
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TELEPHONE NO.: |
254-020-7624186/95 |
GEOGRAPHIC INFORMATION SYSTEMS (GIS) SPATIAL
OUTPUT FORMAT
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Field Name |
Field Description |
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LENGTH |
Length of the road segment. |
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ERROAD |
Internal feature number. Source : ARCINFO |
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ERROAD_ID |
User- assigned feature number User-defined. Integer. Source: ARCINFO |
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RDLNTYPE |
Type of road Code definition: 2 = Primary or secondary roads or highways 3 = Tracks, trails or footpaths 8 = connectors |
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RDLNTYPE |
Type of road text. |
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RDLNSTAT |
Road status Code Definition 1 = Functional 4 = Compiled – road connector 5 = Compiled – from adjacent/ more recent sheet 9 = Schematic road ( used for arcs added within urbanized areas) |
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RDLNSTATTX |
Road status text. |