Northern Oriente Road Network - CPC Ecuador Projects

Identification_Information:

Citation:

Citation_Information:

Originator: Spatial Analysis Unit, Carolina Population Center
Publication_Date: 2003
Title: Northern Oriente Road Network
Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:: This dataset represents the road network for the northern Oriente of Ecuador, circa 2002. Only portions of the network are current to 2002, while others are current to either 2000 or 1990. The road network was originally digitized from 1:50,000-scale topographic maps from 1990, and appended together. The more current portions have been updated using a combination of GPS data from the field and satellite imagery. The geographic locations of all road segments are current to 2002, while only a portion of the attributes are current.
Purpose:: This dataset is intended for use in network and other spatial analyses. A secondary purpose is for representing the road network on maps.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1990
Ending_Date: 2002

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -78.002470
East_Bounding_Coordinate: -75.354332
North_Bounding_Coordinate: 0.356240
South_Bounding_Coordinate: -1.004539

Keywords:

Theme:

Theme_Keyword_Thesaurus: Ecuador
Theme_Keyword: roads
Theme_Keyword: transportation

Access_Constraints:

Data is public domain, made possible through the NASA LBA program.

Use_Constraints:

There are no use constraints. However, potential users should be wary of using this data for analyses at scales larger than 1:50,000. Users should also keep in mind that only a portion of the road network has current surface type attribution.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Frizzelle
Contact_Organization: Carolina Population Center

Contact_Position: Senior Spatial Analyst

Contact_Address:

Address_Type: mailing and physical address
Address: 123 W. Franklin St., Suite 205 West
City: Chapel Hill
State_or_Province: NC
Postal_Code: 27516
Country: USA

Contact_Voice_Telephone: 919-966-6663

Contact_Facsimile_Telephone: 919-966-6638

Contact_Electronic_Mail_Address: brian_frizzelle@unc.edu

Data_Set_Credit:

Road segments digitized by Michelle Lown, Bonnie Kaserman, and Brandie Sullivan of the CPC Spatial Analysis Unit. Field GPS updates were collected by Joe Messina (Dept. of Geography, Michigan State University), Philip McDaniel (CPC Spatial Analysis Unit), and Francis Baquero. Topo map appending, satellite updates, and attribution updates were done by Brian Frizzelle, of the CPC Spatial Analysis Unit.

Security_Information:

Security_Classification: Unclassified

Native_Data_Set_Environment: ARC/INFO

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Attribution for those arcs current to 1990 is based on the attribution from the topographic maps. The attributes for those arcs current to 2000 are based on field observations, and were set to the same categories as those on the maps. The 1990 map categories and 2000 categories were retrofitted to the more accurate 2002 categories. The 2002 categories in use are based on field observations and more accurately describe the range of surface types in the Oriente. The speed ranges applied to these roads are based on field observations. The average speed is simply the average of the minimum and maximum speeds.

Logical_Consistency_Report: Arc topology exists.

Completeness_Report:

The geographic locations of the arcs are current as of 2002. The attributes are in the process of being updated. Roughly half of the arcs are only current to 1990, the year the topographic maps were published. The remaining arc attributes are current to either 2000 or 2002.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: Horizontal accuracy is considered to be at least as accurate as what can be expected from NMAS standards on a 1:50,000-scale map (~25m). Most roads have been updated using GPS and satellite imagery, making them accurate to within 5m and 15m, respectively.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Instituto Geográfico Militar de Ecuador

Publication_Date: 1990

Title: 1:50,000-scale Topographic Map

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Ecuador
Publisher: IGM

Source_Scale_Denominator: 50000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: igmtopo

Source_Information:

Source_Citation:

Citation_Information:

Originator: Carolina Population Center, Spatial Analysis Unit
Title: GPS data

Type_of_Source_Media: GPS

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2000
Ending_Date: 2002

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: trn_gps

Source_Information:

Source_Citation:

Citation_Information:

Originator: NASA; Carolina Population Center, Spatial Analysis Unit
Title: satellite imagery

Source_Scale_Denominator: 30m raster resolution

Type_of_Source_Media: satellite imagery

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2000
Ending_Date: 2002

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: trn_imagery

Process_Step:

Process_Description: 1:50,000-scale topographic maps were digitized.
Process_Date: 1999

Process_Step:

Process_Description:: The individual topographic map road coverages were edgematched and appended.
Process_Date: 1999

Process_Step:

Process_Description:: Positions and surface attributes were updated for roads in the Northern ISA, using GPS.
Process_Date: 2000

Process_Step:

Process_Description:: Road positions were altered to fit locations as seen in a 1999 Landsat TM image and a 2000 Landsat ETM image.
Process_Date: 2001

Process_Step:

Process_Description:: Positions and surface attributes were updated for roads in the Southern, Eastern and Southwestern ISAs, using GPS.
Process_Date: 2002

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain
Point_and_Vector_Object_Count: 8531

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: -18

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 10000000.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000512
Ordinate_Resolution: 0.000512

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: trn_oriente03.aat

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:: Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Character field

Attribute:

Attribute_Label: FNODE#

Attribute_Definition: Internal node number for the beginning of an arc (from-node).

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: TNODE#

Attribute_Definition: Internal node number for the end of an arc (to-node).

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: LPOLY#

Attribute_Definition: Internal node number for the left polygon.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: RPOLY#

Attribute_Definition: Internal node number for the right polygon.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: LENGTH

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:: Positive real numbers that are automatically generated. Represent the length of the arc in meters.

Attribute:

Attribute_Label: TRN_ORIENTE03#

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:: Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: TRN_ORIENTE03-ID

Attribute_Definition: User-defined feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Domain_Values:

Unrepresentable_Domain: Whole numbers that are automatically generated.

Attribute:

Attribute_Label: TYPE

Attribute_Definition:

The original road type code based on the categories on the 1990 topographic maps. Maintained here only for reference purposes.

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: Bridge / Puente

Enumerated_Domain:

Enumerated_Domain_Value: 11
Enumerated_Domain_Value_Definition: Path / Sendero

Enumerated_Domain:

Enumerated_Domain_Value: 20
Enumerated_Domain_Value_Definition: Seasonal road / Camino temporal

Enumerated_Domain:

Enumerated_Domain_Value: 30
Enumerated_Domain_Value_Definition:: Narrow (one-lane) unpaved road / Carretera sin pavimentar angosto

Enumerated_Domain:

Enumerated_Domain_Value: 31
Enumerated_Domain_Value_Definition: Narrow (one-lane) paved road / Carretera pavimentada angosto

Enumerated_Domain:

Enumerated_Domain_Value: 32
Enumerated_Domain_Value_Definition:: Unpaved road, 2 or more lanes / Carretera sin pavimentar dos o mas vias

Enumerated_Domain:

Enumerated_Domain_Value: 33
Enumerated_Domain_Value_Definition:: Paved road, 2 or more lanes / Carretera pavimentada dos o mas vias

Enumerated_Domain:

Enumerated_Domain_Value: 34
Enumerated_Domain_Value_Definition:: Highway, freeway, 2 or more lanes / Autopista, carretera pavimentada (dos o mas vias)

Enumerated_Domain:

Enumerated_Domain_Value: 40
Enumerated_Domain_Value_Definition: Ferry / Barco de pasaje

Attribute:

Attribute_Label: TRN_CODE

Attribute_Definition: The current numeric road surface type code.

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: Footpath / Sendero

Enumerated_Domain:

Enumerated_Domain_Value: 11
Enumerated_Domain_Value_Definition: Unknown Footpath / Sendero Desconocido
Enumerated_Domain_Value_Definition_Source: Current surface believed to be Footpath. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: 20
Enumerated_Domain_Value_Definition: Fair-Weather Dirt Road / Camino de Tierra Temporal

Enumerated_Domain:

Enumerated_Domain_Value: 21
Enumerated_Domain_Value_Definition:: Unknown Fair-Weather Dirt Road / Camino de Tierra Temporal Desconocido
Enumerated_Domain_Value_Definition_Source:: Current surface believed to be Fair-Weather Dirt Road. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: 30
Enumerated_Domain_Value_Definition: All-Weather Dirt Road / Camino de Tierra Todo El Tiempo

Enumerated_Domain:

Enumerated_Domain_Value: 31
Enumerated_Domain_Value_Definition:: Unknown All-Weather Dirt Road / Camino de Tierra Todo El Tiempo Desconocido
Enumerated_Domain_Value_Definition_Source:: Current surface believed to be All-Weather Dirt Road. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: 40
Enumerated_Domain_Value_Definition: Smooth-Stone “Paved” Road / Camino de Piedra Bola

Enumerated_Domain:

Enumerated_Domain_Value: 45
Enumerated_Domain_Value_Definition: Smooth-Stone & Dirt Road / Camino de Piedra Bola y Tierra

Enumerated_Domain:

Enumerated_Domain_Value: 46
Enumerated_Domain_Value_Definition: Smooth-Stone & Petroleum / Camino de Piedra Bola y Petroleo

Enumerated_Domain:

Enumerated_Domain_Value: 50
Enumerated_Domain_Value_Definition: “Cobblestone” Hexagonal-Cement Block Road / Via Adoquinada

Enumerated_Domain:

Enumerated_Domain_Value: 60
Enumerated_Domain_Value_Definition: All-Weather Paved Road / Via Pavimentada

Enumerated_Domain:

Enumerated_Domain_Value: 70
Enumerated_Domain_Value_Definition:: Unknown Hard-Surface Road / Camino de Superficie Dura Desconocida
Enumerated_Domain_Value_Definition_Source:: Current surface known to be hardened. The exact surface type is unknown.

Enumerated_Domain:

Enumerated_Domain_Value: 80
Enumerated_Domain_Value_Definition: Bridge / Puente

Enumerated_Domain:

Enumerated_Domain_Value: 85
Enumerated_Domain_Value_Definition: Ferry / Barco de Pasaje

Attribute:

Attribute_Label: TRN_TYPE

Attribute_Definition: The current text road surface type code.

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition: Footpath / Sendero

Enumerated_Domain:

Enumerated_Domain_Value: SD
Enumerated_Domain_Value_Definition: Unknown Footpath / Sendero Desconocido
Enumerated_Domain_Value_Definition_Source: Current surface believed to be Footpath. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: TT
Enumerated_Domain_Value_Definition: Fair-Weather Dirt Road / Camino de Tierra Temporal

Enumerated_Domain:

Enumerated_Domain_Value: TTD
Enumerated_Domain_Value_Definition:: Unknown Fair-Weather Dirt Road / Camino de Tierra Temporal Desconocido
Enumerated_Domain_Value_Definition_Source:: Current surface believed to be Fair-Weather Dirt Road. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: TTT
Enumerated_Domain_Value_Definition: All-Weather Dirt Road / Camino de Tierra Todo El Tiempo

Enumerated_Domain:

Enumerated_Domain_Value: TTTD
Enumerated_Domain_Value_Definition:: Unknown All-Weather Dirt Road / Camino de Tierra Todo El Tiempo Desconocido
Enumerated_Domain_Value_Definition_Source:: Current surface believed to be All-Weather Dirt Road. Not verified.

Enumerated_Domain:

Enumerated_Domain_Value: PB
Enumerated_Domain_Value_Definition: Smooth-Stone “Paved” Road / Camino de Piedra Bola

Enumerated_Domain:

Enumerated_Domain_Value: PBT
Enumerated_Domain_Value_Definition: Smooth-Stone & Dirt Road / Camino de Piedra Bola y Tierra

Enumerated_Domain:

Enumerated_Domain_Value: PBP
Enumerated_Domain_Value_Definition: Smooth-Stone & Petroleum / Camino de Piedra Bola y Petroleo

Enumerated_Domain:

Enumerated_Domain_Value: VA
Enumerated_Domain_Value_Definition: “Cobblestone” Hexagonal-Cement Block Road / Via Adoquinada

Enumerated_Domain:

Enumerated_Domain_Value: VP
Enumerated_Domain_Value_Definition: All-Weather Paved Road / Via Pavimentada

Enumerated_Domain:

Enumerated_Domain_Value: CSDD
Enumerated_Domain_Value_Definition:: Unknown Hard-Surface Road / Camino de Superficie Dura Desconocida
Enumerated_Domain_Value_Definition_Source:: Current surface known to be hardened. The exact surface type is unknown.

Enumerated_Domain:

Enumerated_Domain_Value: P
Enumerated_Domain_Value_Definition: Bridge / Puente

Enumerated_Domain:

Enumerated_Domain_Value: F
Enumerated_Domain_Value_Definition: Ferry / Barco de Pasaje

Attribute:

Attribute_Label: TRN_DESC

Attribute_Definition: Description of the road surface type

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Unrepresentable_Domain: Character field

Attribute:

Attribute_Label: MIN_SPEED

Attribute_Definition: Minimum speed

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 999
Attribute_Units_of_Measure: kilometers per hour

Attribute:

Attribute_Label: MAX_SPEED

Attribute_Definition: Maximum possible speed

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 999
Attribute_Units_of_Measure: kilometers per hour

Attribute:

Attribute_Label: AVG_SPEED

Attribute_Definition: Average speed

Attribute_Definition_Source: CPC Ecuador Project

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 999
Attribute_Units_of_Measure: kilometers per hour

Attribute:

Attribute_Label: SHAPE_LENG

Attribute_Definition: Length of segment

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1990
Range_Domain_Maximum: 2002

Overview_Description:

Entity_and_Attribute_Overview:: Attribute items are in typical ARC/INFO arc format. Attributes requiring additional explanation are covered in the Detailed Description.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Frizzelle
Contact_Organization: Carolina Population Center

Contact_Position: Senior Spatial Analyst

Contact_Address:

Address_Type: mailing and physical address
Address: 123 W. Franklin St., Suite 205 West
City: Chapel Hill
State_or_Province: NC
Postal_Code: 27516
Country: USA

Contact_Voice_Telephone: 919-966-6663

Contact_Facsimile_Telephone: 919-966-6638

Contact_Electronic_Mail_Address: brian_frizzelle@unc.edu

Resource_Description: Data currently available to the public.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 2.891

Ordering_Instructions: Contact Brian Frizzelle to obtain a copy of the dataset.

Custom_Order_Process: Contact Brian Frizzelle to obtain a copy of the dataset.

Technical_Prerequisites: Must have a software package that can read ArcInfo coverages.

Metadata_Reference_Information:

Metadata_Date: 20030214

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Frizzelle
Contact_Organization: Carolina Population Center

Contact_Position: Senior Spatial Analyst

Contact_Address:

Address_Type: mailing and physical address
Address: 123 W. Franklin St., Suite 205 West
City: Chapel Hill
State_or_Province: NC
Postal_Code: 27516
Country: USA

Contact_Voice_Telephone: 919-966-6663

Contact_Facsimile_Telephone: 919-966-6638

Contact_Electronic_Mail_Address: brian_frizzelle@unc.edu

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile