telex

Identification Information

[smtype]

Citation Information

Originator	Maine Public Utilities Commission (MEPUC), Maine Office of Geographic Information Systems (MEGIS) (ed.)(comp.)
Publication Date	20050501
Publication Time	Unknown
Title	telex
Geospatial Data Presentation Form	vector digital data
Series Name	Maine GIS
Issue Identification	SDE server; Internet Data Catalog
Publication Place	Augusta ME
Publisher	Maine Office of Geographic Information Systems (MEGIS)
Other Citation Details	1:100000
Online Linkage	http://megis.maine.gov/catalog/
[smcilnkh]	true
[smcisrcs]	100000
[smcisrcm]	online
Calendar Date	20050501
[smcisrcc]	publication date

Abstract

TELEX contains polygons delineating telephone exchanges in Maine at 1:100,000 scale. Maine Office of GIS staff compiled Maine Public Utilities Commission (MEPUC) exchange locations onto a USGS 1:100,000 scale base. A point was placed on the base at the georeferenced location of the exchange office; these points serve as label points for each polygon. The polygons are coded for exchange, wirecenter (office), ownership and utility. Arcs, delineating exchange boundaries, are coded for source in the item LINE. The last update from the MEPUC was in 2005; all delineations are based on information supplied by the MEPUC.

Purpose

TELEX provides a GIS dataset of telephone exchange offices and service areas for Maine. Maps at this scale are suitable for regional studies and planning. Not intended for use at scales greater than 1:100,000.

Supplemental Information

The 2005 version of TELEX has substantial revisions of attribute items and total area covered.

Time Period of Content

Beginning Date	19480101
Beginning Time	Unknown
Ending Date	20050501
Ending Time	Unknown
Currentness Reference	publication date

Status

Progress	Complete
Maintenance and Update Frequency	Unknown

Bounding Coordinates

West Bounding Coordinate	-70.99223
East Bounding Coordinate	-66.8237
North Bounding Coordinate	47.34197
South Bounding Coordinate	43.05914

Keywords

Theme	utilitiesCommunication (ISO Keyword Thesaurus)
Theme	communications, infrastructure, services (Maine GIS Thesaurus-Theme)
Place	Maine, United States (Maine GIS Thesaurus-Place)
Stratum	human dimensions (GCMD Parameter Keyword)

Access Constraints

Secondary distribution by permission only. Please see Maine Office of Geographic Information Systems (MEGIS) License Agreement at http://megis.maine.gov/ . Any secondary distribution must have this documentation appended.

Use Constraints

Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS

Contact Organization

(MEPUC) Maine Public Utilities Commission

Address Type

mailing and physical address

Address

242 State Street SHS 18

City

Augusta

State or Province

Postal Code

04333-0018

Country

USA

Contact Voice Telephone

207 287 3831

Contact Facsimile Telephone

207 187 1039

Contact Electronic Mail Address

maine.puc@maine.gov

Hours of Service

0800 - 1700 EST

Data Set Credit

Credit should always be given to the data source and/or originator when the data is transferred or printed.

Native Data Set Environment

Maine Office of Information Technology (OIT) Oracle 9i, Maine Office of Geographic Information Systems (MEGIS), Maine GIS SDE,Maine GIS Internet Data Catalog http://megis.maine.gov/catalog/

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false

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[smltype]

[smlloc]

\\bis-isa1AS2GIS\HOME11\crypt83\state

[smlname]

TELEX_Area

[smllbl]

[smllbla]

state

[smlstyl1]

[smlcolor]

-2

[smlweigh]

[smlorder]

[smltype]

[smllbl]

[smlstyl1]

[smlcolor]

[smlweigh]

Attribute Accuracy Report

Attribute accuracy is tested by manual comparison of the source with hard copy printouts and/or symbolized display of digital files. Please report errors to Maine Office of GIS.

Logical Consistency Report

Spatial topology meets Maine GIS Data Standards. Spatial topology meets Maine GIS Data Standards.

Completeness Report

Data set is complete.

Horizontal Positional Accuracy Report

Approximate horizontal accuracy is 51 meters, assuming source data meets National Map Accuracy Standards.

Horizontal Positional Accuracy Value

Horizontal Positional Accuracy Explanation

Horizontal positional accuracy for the digital data is tested by visual comparison to the source.

Citation Information

Originator	U.S. Geological Survey (USGS)
Publication Date	multiple dates
Publication Time	Unknown
Title	(100k) USGS 1:100000 scale quadrangles
Geospatial Data Presentation Form	map
Series Name	National Mapping Program Standard Series Topographic Maps
Issue Identification	USGS 30 x 60 Minute Map Series
Publication Place	Reston VA
Publisher	U.S. Geological Survey
Other Citation Details	Publication date is unique to each quadrangle in the map series. Standard 30x60 minute quadrangles cover geographic areas of 1578 to 2167 square miles. 1 inch at map scale represents 1.6 miles. The following information from the Mid-continent Mapping Center (MCMC) may be pertinent in the use of 100k data: "The 100k quadrangles were primarily produced using 15 minute copy. However, P (provisional) maps and other 7.5 minute copy were also used."
Online Linkage	http://mapping.usgs.gov/mac/maplists/
[smcilnkh]	false
[smcisrcs]	100000
[smcisrcm]	stable-base material (mylar)
Beginning Date	19840101
Beginning Time	Unknown
Ending Date	19861231
Ending Time	Unknown
[smcisrcc]	publication date

Source Scale Denominator

100000

Type of Source Media

stable-base material (mylar)

Beginning Date

19840101

Beginning Time

Unknown

Ending Date

19861231

Ending Time

Unknown

Source Currentness Reference

publication date

Source Citation Abbreviation

100k

Source Contribution

TELEX data was compiled on a USGS 1:100,000 scale base map and manually digitized. Coincident features from the 100k base were used where possible.

Citation Information

Originator	U.S. Geological Survey (USGS)
Publication Date	multiple dates
Publication Time	Unknown
Title	(24k) USGS 1:24,000 scale quadrangles
Geospatial Data Presentation Form	map
Series Name	National Mapping Program Standard Series Topographic Maps
Issue Identification	USGS 7.5 Minute Map Series
Publication Place	Reston VA
Publisher	U.S. Geological Survey
Other Citation Details	24000 Publication date is unique to each quadrangle in the map series. Standard 7.5x7.5 minute quadrangles cover geographic areas of 49 to 71 square miles. 1 inch at map scale represents 2000 feet.
Online Linkage	http://mapping.usgs.gov/mac/maplists/howtoselectmaps.html
[smcilnkh]	false
[smcisrcs]	24000
[smcisrcm]	stable-base material (mylar)
Beginning Date	19480101
Beginning Time	Unknown
Ending Date	Present
Ending Time	Unknown
[smcisrcc]	publication date

Source Scale Denominator

24000

Type of Source Media

stable-base material (mylar)

Beginning Date

19480101

Beginning Time

Unknown

Ending Date

Present

Ending Time

Unknown

Source Currentness Reference

publication date

Source Citation Abbreviation

24k

Source Contribution

Coincident features for USGS 1:24000 scale data were used in the development of TELEX as needed.

Citation Information

Originator	unknown
Publication Date	Unpublished Material
Title	(MEPUCCAD) CAD generated maps
Geospatial Data Presentation Form	map
Other Citation Details	Maine Public Utilities Commission provided a small number of CAD generated maps were used for the independent exchanges.
[smcilnkh]	false
[smcisrcs]	200
[smcisrcm]	unknown
Time of Day	Unknown
[smcisrcc]	publication date

Source Scale Denominator

200

Type of Source Media

unknown

Time of Day

Unknown

Source Currentness Reference

publication date

Source Citation Abbreviation

mepuccad

Source Contribution

A small number of CAD generated maps were used in TELEX to delineate location and boundaries of independent exchanges.

Process Description

The original mapping had been photo-reduced or enlarged so the automation methodology was to recompile the exchange boundaries onto a USGS 1:100000 basemap and manually digitize these. Coincident features from MEGIS 1:1000000 baselayers were used for exchange boundaries where possible. Points were entered at exchange office locations shown on the originals. Quality control was provided by MEGIS and MEPUC. QAQC was done by the Office of GIS and the PUC.

Source Used Citation Abbreviation

100k

Source Used Citation Abbreviation

24k

Source Used Citation Abbreviation

mepuccad

Process Date

19950301

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Process Description

The Maine Office of GIS completed the conversion of all final data layers from NAD27 to NAD83 in July 1999. All the data layers were converted using the ArcInfo (version 7.2.1) NADCON conversion and the "project" command. All data was copied to double precision, projected to NAD83, and then copied back to single precision. It was decided to keep the NAD27 quad structure instead of generating new quad boundaries from NAD83 coordinates - all indexes (quads) were projected to NAD83 by using the same process previously described. All MEGIS data libraries in ArcInfo Librarian were repopulated using the NAD83 indexes and data.

Process Date

19990701

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Process Description

Attributes were altered by request of the Maine Public Utilities Commission staff to show EXCHANGE ( telephone exchange name or locality) WIRECENTER ( formerly OFFICE ) OWNERSHIP ( holding company ) and UTILITY ( formerly the holding company subsidiary ). Additional State boundary lines were added from the USGS 1:100,000 base to create a complete outline of the state encompassing areas of service or no service as closed polygons . Some changes in exchange boundaries were made.

Source Used Citation Abbreviation

100k

Process Date

20050501

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Process Description

Ownership attributes were updated by the request of PUC to reflect the change in ownership from Verizon to FairPoint Communications-NNE

Process Date

20080604

Contact Organization

Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

207 624-7700

Contact Facsimile Telephone

207 287-4563

Hours of Service

Monday through Friday 0800 - 1700 EST

Cloud Cover

Direct Spatial Reference Method

Vector

SDTS Point and Vector Object Type

Area chain

Point and Vector Object Count

284

[smcaptur]

true

Grid Coordinate System Name

UTM Zone Number

Scale Factor at Central Meridian

0.9996

Longitude of Central Meridian

-69

Latitude of Projection Origin

False Easting

500000

False Northing

Planar Coordinate Encoding Method

Abscissa Resolution

Ordinate Resolution

Planar Distance Units

meters

Horizontal Datum Name

North American Datum of 1983

Ellipsoid Name

Geodetic Reference System 80

Semi-major Axis

6378137

Denominator of Flattening Ratio

298.257

Entity Type Label

TELEXArc

Entity Type Definition

arc feature class

Entity Type Definition Source

Environmental Systems Research Institute, Inc. (ESRI)

Attribute Label

LINES

Attribute Definition

source of arc

Attribute Definition Source

ESRI

Enumerated Domain Value

USGS

Enumerated Domain Value Definition

coincident feature from 1:100,000 USGS data

Enumerated Domain Value

PUC

Enumerated Domain Value Definition

line came from the Maine Public Utilities Commission data

Enumerated Domain Value

OGIS

Enumerated Domain Value Definition

closure line added by MEGIS staff

Unrepresentable Domain

Whole numbers that are automatically generated.

Beginning Date of Attribute Values

Entity Type Label

TELEXPoly

Entity Type Definition

polygon feature class

Entity Type Definition Source

Environmental Systems Research Institute, Inc. (ESRI)

Attribute Label

EXCHANGE

Attribute Definition

Name of the telephone exchange

Attribute Definition Source

MPUC

Unrepresentable Domain

proper name

Beginning Date of Attribute Values

Attribute Label

OWNERSHIP

Attribute Definition

The company that owns the exchange.

Attribute Definition Source

MPUC

Unrepresentable Domain

proper name

Beginning Date of Attribute Values

Attribute Label

UTILITY

Attribute Definition

The utility of which the exchange is a part.

Attribute Definition Source

MPUC

Unrepresentable Domain

proper name

Beginning Date of Attribute Values

Attribute Label

WIRECENTER

Attribute Definition

The wire center or office for the exchange.

Attribute Definition Source

MPUC

Unrepresentable Domain

proper name

Beginning Date of Attribute Values

Entity and Attribute Overview

POLYGONS in TELEX are coded for company, subsidiary, exchange, office name and availability of service. Arcs that delineate exchange boundaries, are coded for source in the item LINE.

Entity and Attribute Detail Citation

The ArcView shapefile and ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: FID (feature identifier), Shape (feature geometry), OBJECTID and SHAPE_lengt. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.

Entity and Attribute Overview

POLYGONS in TELEX are coded for company, subsidiary, exchange, office name and availability of service. Arcs that delineate exchange boundaries, are coded for source in the item LINE.

Entity and Attribute Detail Citation

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Resource Description

Downloadable Data

Distribution Liability

Users must assume responsibility to determine the usability of this data for their purposes. Although these data have been processed successfully on a computer system at the Maine Office of Geographic Information Systems, no warranty expressed or implied is made by MEGIS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Neither the Maine Office of Geographic Information Systems, nor any of its contributors, is liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets.

Format Name

ESRI Shapefile

Format Version Number

ARC Version 9.x

Format Specification

ArcView Shapefile Format

Format Information Content

MEGIS has made all vector layers, in the Maine GIS Internet Data Catalog, available in ESRI's ArcView shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS, ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj, and metadata .xml, files associated with shapefiles.

File Decompression Technique

Data available from this website is in .zip compressed format. WinZip is a Windows based, PKZip-compatible compression utility. You will need a program like this to extract the data. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/.

[accinstr]

These data are available to Internet browsers for download from the Maine GIS Internet Data Catalog. Data available from this website is in .zip compressed format. WinZip is a Windows based, PKZip-compatible compression utility. You will need a program like this to extract the data. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/. If you are not already a GIS user, free software for viewing these files is available from Environmental Systems Research Institute, Inc. (ESRI). See http://megis.maine.gov/links/ for a link to ArcExplorer 9.x .

[smdistty]

Fees

Data may be downloaded from Maine GIS Internet Data Catalog at no charge.

Turnaround

Data is available for immediate download from the Maine GIS Internet Data Catalog.

Beginning Date

19990326

Beginning Time

Unknown

Ending Date

Present

Ending Time

Unknown

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 145

City

Augusta

State or Province

Postal Code

04333-0145

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Distribution Liability

Users must assume responsibility to determine the usability of this data for their purposes.

Format Name

ARCSDE

Format Version Number

ArcSDE 9.x

Format Information Content

Oracle 9i

[accinstr]

Please contact the Maine Office of GIS (MEGIS) for access instructions.

[smdistty]

Fees

Access is available through Maine's wide area network; WAN users may contact the Maine Office of Information Technology, Maine Office of Geographic Information Systems (MEGIS) for a login.

Metadata Reference Information

Metadata Date

20050501

Metadata Review Date

20070925

Metadata Future Review Date

Metadata Contact

Contact Organization	Maine Office of Geographic Information Systems
Contact Position	GIS Coordinator
Address Type	mailing address
Address	State House Station 145
City	Augusta
State or Province	ME
Postal Code	04333-0145
Country	USA
Contact Voice Telephone	207 624-7700
Contact Facsimile Telephone	207 287-4563
Hours of Service	Monday through Friday 0800 - 1700 EST

Metadata Standard Name

Metadata

Metadata Standard Version

FGDC-STD-001-1998

Metadata Time Convention

local time