Tijuana River Watershed Digital Roads File
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Center for Earth Systems Analysis Research
- Originator: El Colegio de la Frontera Norte
- Publication_Date: 20000601
- Title: Tijuana River Watershed Digital Roads File
- Edition: One
- Geospatial_Data_Presentation_Form: vector digital data
- Publication_Information:
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- Publication_Place: San Diego, California USA
- Publisher: Center for Earth Systems Analysis Research
- Larger_Work_Citation:
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- Citation_Information:
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- Originator:
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Center for Earth Systems Analysis Research; El Colegio de la Frontera Norte
- Publication_Date: 20000601
- Title: Tijuana River Watershed GIS Database
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: San Diego, California USA
- Publisher: Center for Earth Systems Analysis Research
- Description:
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- Abstract:
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The Tijuana River Watershed digital roads coverage was created as part of the Tijuana River Watershed GIS database project. The location and type of road is important to understanding the transportation infrastructure within the watershed.
- Purpose:
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The Tijuana River Watershed GIS Database project provides a fully integrated cross border geographic information system. The location and type of road is important to understanding the transportation infrastructure within the watershed.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 1994
- Currentness_Reference: Publication Date
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -117.1391
- East_Bounding_Coordinate: -115.8654
- North_Bounding_Coordinate: 33.0014
- South_Bounding_Coordinate: 32.1192
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: bi-national
- Theme_Keyword: boundaries
- Theme_Keyword: coastline
- Theme_Keyword: cross border
- Theme_Keyword: land use
- Theme_Keyword: residential
- Theme_Keyword: urban
- Theme_Keyword: watershed
- Theme_Keyword: road
- Theme_Keyword: interstate
- Theme_Keyword: highway
- Theme_Keyword: arterial
- Theme_Keyword: transportation
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Mexico
- Place_Keyword: San Diego
- Place_Keyword: Tecate
- Place_Keyword: Tijuana
- Place_Keyword: United States
- Access_Constraints: None
- Use_Constraints: Not for definitive use.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Center for Earth Systems Analysis Research
- Contact_Person: David McKinsey
- Contact_Position: CESAR Technical Manager
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 5500 Campanile Drive
- City: San Diego
- State_or_Province: California
- Postal_Code: 92182-4493
- Country: USA
- Contact_Voice_Telephone: (619) 594-8042
- Contact_Facsimile_Telephone: (619) 594-4938
- Contact_Electronic_Mail_Address: mckinsey@mail.sdsu.edu
- Hours_of_Service: Monday - Friday, 9am-4pm, Pacific Standard Time
- Native_Data_Set_Environment: ArcInfo Coverage
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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All attributes created during the data generation phase were verified by comparing the lines in both the dataset and the spatial coverage, but no formal tests were performed.
- Logical_Consistency_Report:
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These data are believed to be logically consistent, though no tests were performed. Line geometry is topologically clean.
- Completeness_Report:
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The roads coverage was created from exisiting DIME files and from INEGI maps. The DIME files were generalized to reflect major streets, roads, and highways in the U.S. portion of the watershed. The major roads, streets, and highways on the Mexican side were digitized from the INEGI maps and then edited and updated using 1:50;000 scale aerial photography dated 1994 and SPOT satellite imagery.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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The data on the U.S. side of the border were taken from existing DIME files. The data on the Mexican side were digitized from INEGI maps and then edited and updated using 1:50,000 scale aerial photography dated 1994 and SPOT satellite imagery from 1995. The data set as a whole was not statistically tested for horizontal accuracy.
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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The data on the U.S. side of the border were taken from existing DIME files. The data on the Mexican side were digitized from INEGI maps and then edited and updated using 1:50,000 scale aerial photography dated 1994 and SPOT satellite imagery from 1995. The data set as a whole was not statistically tested for vertical accuracy.
- Lineage:
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- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator: San Diego Association of Governments
- Publication_Date: 1990
- Title: San Diego Association of Governments County Coverage
- Edition: unknown
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: San Diego, California USA
- Publisher: San Diego Association of Governments
- Source_Scale_Denominator: 24000
- Type_of_Source_Media: Digital
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 1990
- Source_Currentness_Reference: Publication Data
- Source_Citation_Abbreviation: SANDAG
- Source_Contribution:
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Vector Data Representing the Roads on the U.S. portion of the watershed.
- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator: SPOT Corporation
- Publication_Date: 19950801
- Title: Satellite Image of San Diego / Tijuana Region
- Edition: One
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: United States
- Publisher: SPOT Corporation
- Source_Scale_Denominator: 24000 (Unknown)
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 199508
- Source_Currentness_Reference: Publication Date
- Source_Citation_Abbreviation: SPOT
- Source_Contribution: Digital reference for heads up digitizing of the roads.
- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator: Instituto Nacional de Estadistica Geografia e Informatica
- Publication_Date: Unknown
- Title: INEGI 1:50000 Topographic Maps
- Edition: Various
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: Mexico
- Publisher: Instituto Nacional de Estadistica Geografia e Informatica
- Source_Scale_Denominator: 50000
- Type_of_Source_Media: paper
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: Unknown
- Source_Currentness_Reference: Publication Date
- Source_Citation_Abbreviation: INEGI
- Source_Contribution:
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Provided base maps for the roads on the Mexican portion of the watershed.
- Process_Step:
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- Process_Description:
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The roads layer were created from existing digital DIME files and from INEGI maps which were updated using a combination of aerial photography and satellite imagery. The data contained in the DIME files were generalized to reflect major streets, roads, and highways in the U.S. portion of the watershed. The major roads of the Mexican portion of the watershed were digitized from 1:50,000 scale INEGI maps and then edited and updated using 1:50,000 scale aerial photography dated 1994 and SPOT satellite imagery from 1995. The road networks only connect in three locations and therefore little edgematching was necessary. SDSU received the roads data for the Mexican portion of the watershed from COLEF in the form of ungenerated ascii files for the geographical data and ascii files for the associated attribute data. The data from COLEF utilized a projection and datum consistent with the U.S. data and therefore no re-projection or transformation was necessary to integrate the data into a single database. The roads were further edited by reclassifying the CLASS item, which orders the roads from interstates to local road, to correctly code each of the roads. Some items were deleted to create a coherent coverage on both sides of the border. Finally the roads coverage were dissolved to minimize the amount of features in the coverage.
- Source_Used_Citation_Abbreviation: INEGI, SANDAG, SPOT
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: Unknown
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Organization: Center for Earth Systems Analysis Research
- Contact_Person: David McKinsey
- Contact_Position: CESAR Technical Manager
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 5500 Campanile Drive
- City: San Diego
- State_or_Province: California
- Postal_Code: 92182-4493
- Country: USA
- Contact_Voice_Telephone: (619) 594-8042
- Contact_Facsimile_Telephone: (619) 594-4938
- Contact_Electronic_Mail_Address: mckinsey@mail.sdsu.edu
- Hours_of_Service: Monday - Friday, 9am-4pm, Pacific Standard Time
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Complete Chain
- Point_and_Vector_Object_Count: 13450
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 11
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -117.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: Coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.000005
- Ordinate_Resolution: 0.000005
- Planar_Distance_Units: Meters
- Geodetic_Model:
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- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: GRS 80
- Semi-major_Axis: 6378137.0000000
- Denominator_of_Flattening_Ratio: 298.26
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: roads.aat
- Entity_Type_Definition: Tijuana River Watershed Roads Coverage
- Entity_Type_Definition_Source: user-defined
- Attribute:
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- Attribute_Label: FNODE#
- Attribute_Definition: Internal node number for the beginning of an arc (from-node).
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: TNODE#
- Attribute_Definition: Internal node number for the end of an arc (to-node).
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: LPOLY#
- Attribute_Definition: Internal node number for the left polygon.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: RPOLY#
- Attribute_Definition: Internal node number for the right polygon.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: LENGTH
- Attribute_Definition: Length of feature in internal units.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: ROADS#
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: ROADS-ID
- Attribute_Definition: User-defined feature number.
- Attribute_Definition_Source: User-defined
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Whole numbers that may be user-defined.
- Attribute:
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- Attribute_Label: CLASS
- Attribute_Definition: Type of Road
- Attribute_Definition_Source: user-defined
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 1
- Enumerated_Domain_Value_Definition: Interstate/Ramp/Autopista
- Enumerated_Domain_Value_Definition_Source: user-defined
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 2
- Enumerated_Domain_Value_Definition: Highway/Access/Via Pavim 2C
- Enumerated_Domain_Value_Definition_Source: user-defined
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 3
- Enumerated_Domain_Value_Definition: Arterial/Local/Via Pavimentada
- Enumerated_Domain_Value_Definition_Source: user-defined
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 4
- Enumerated_Domain_Value_Definition: Unpaved/Terraceria
- Enumerated_Domain_Value_Definition_Source: user-defined
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 5
- Enumerated_Domain_Value_Definition: Future/Futuro
- Enumerated_Domain_Value_Definition_Source: user-defined
- Distribution_Information:
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- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Center for Earth Systems Analysis Research
- Contact_Person: David McKinsey
- Contact_Position: CESAR Technical Manager
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 5500 Campanile Drive
- City: San Diego
- State_or_Province: California
- Postal_Code: 92182-4493
- Country: USA
- Contact_Voice_Telephone: (619) 594-8042
- Contact_Facsimile_Telephone: (619) 594-4938
- Contact_Electronic_Mail_Address: mckinsey@mail.sdsu.edu
- Hours_of_Service: Monday - Friday, 9am-4pm, Pacific Standard Time
- Resource_Description: Tijuana River Watershed Roads Layer
- Distribution_Liability:
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While this data have been collected for use in spatial analysis and decision making, and for use in Geographic Information Systems, San Diego State University, Department of Geography, the Center for Earth Systems Analysis Research, and El Colegio de la Frontera Norte cannot guarantee the accuracy of the data. As with any spatial data, issues of scale, taxonomic classification, resolution, and precision will affect the perceived accuracy of the data. Users are ultimately responsible for
- Metadata_Reference_Information:
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- Metadata_Date: 20000726
- Metadata_Review_Date: 20000906
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Center for Earth Systems Analysis Research
- Contact_Person: David McKinsey
- Contact_Position: CESAR Technical Manager
- Contact_Address:
-
- Address_Type: Mailing and physical address
- Address: 5500 Campanile Drive
- City: San Diego
- State_or_Province: California
- Postal_Code: 92182-4493
- Country: USA
- Contact_Voice_Telephone: (619) 594-8042
- Contact_Facsimile_Telephone: (619) 594-4938
- Contact_Electronic_Mail_Address: mckinsey@mail.sdsu.edu
- Hours_of_Service: Monday - Friday, 9am-4pm, Pacific Standard Time
- Metadata_Standard_Name: FGDC CSDGM
- Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.8 on Wed Oct 22 13:20:14 2008