retroart

Identification Information

[smtype]

Citation Information

Originator	Maine Department of Transportation (MEDOT)
Publication Date	20031016
Title	retroart
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	1:24000
Online Linkage	http://megis.maine.gov/catalog/
[smcilnkh]	true
[smcisrcs]	24000

Abstract

RETROART represents road centerlines along arterials designated "Retrograde Arterials" as part of the MEDOT's statewide Access Management program. A retrograde arterial is a mobility arterial where the access-related crash-per-mile rate exceeds the 1999 statewide average for arterials of the same posted speed limit. The MEDOT Access Management program envisions prioritized planning and preservation of Mobility Arterial corridors most at risk of losing capacity, safety, and of decreasing posted speeds, due to increasing development and commuter and visitor pressures. More about the Access Management Program can be found at http://www.state.me.us/mdot/planning-process-programs/access-mngmnt.php . This dataset was created by Maine Department of Transportation using basemap line work (see the MEDOTPUB (ROADS) metadata for more detail). This dataset is designed for use in applications within MEDOT.

Purpose

Designed to be used for planning purposes.

Time Period of Content

Beginning Date	1994
Beginning Time	Unknown
Ending Date	20031016
Ending Time	Unknown
Currentness Reference	publication date

Status

Progress	In work
Maintenance and Update Frequency	none planned

Bounding Coordinates

West Bounding Coordinate	-70.96775
East Bounding Coordinate	-67.82562
North Bounding Coordinate	46.84696
South Bounding Coordinate	43.1176

Keywords

Theme	transportation, planningCadastre (ISO Keyword Thesaurus)
Theme	public roads, retrograde arterials, safety (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. 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

(MEDOT) Maine Department of Transportation

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 16

City

Augusta

State or Province

Postal Code

04333

Country

USA

Contact Voice Telephone

(207) 624-3300

Contact Facsimile Telephone

(207)624-3301

Hours of Service

Monday through Friday 0800 - 1700 EST

Contact Instructions

Contact the Bureau of Planning, Systems Management section. Ask for the GIS Coordinator.

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

(MEDOT) Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2 ESRI ArcCatalog 9.1.0.722; 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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\\bis-isa1AS2GIS\HOME11\crypt83\state

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RETROART

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state

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Horizontal Positional Accuracy Report

Data accuracy 40ft + /-

Horizontal Positional Accuracy Value

Horizontal Positional Accuracy Explanation

Data was derived from digital data that meets or exceeds National Map Accuracy Standards for 1:24,000 scale.

Citation Information

Originator	Maine Department of Transportation (MEDOT)
Publication Date	20050623
Title	medotpub
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	1:24000
Online Linkage	http://megis.maine.gov/catalog/
[smcilnkh]	true
[smcisrcs]	24000
[smcisrcm]	online
Beginning Date	1994
Beginning Time	Unknown
Ending Date	20030701
Ending Time	Unknown
[smcisrcc]	publication date

Source Scale Denominator

24000

Type of Source Media

online

Beginning Date

1994

Beginning Time

Unknown

Ending Date

20030701

Ending Time

Unknown

Source Currentness Reference

publication date

Source Citation Abbreviation

medotpub

Source Contribution

RETROART is derived from MEDOTPUB (Roads) network maintained in Arc/Info coverages by county.

Process Description

Source centerline coverage created weekly using an Arc/Info macro, taking spatial information from centerline 'basemap' which is updated continuously. Segment identification codes are assigned to facilitate queries via SQL from related Oracle tables. SQL query to Oracle tables returns attributes of each road segment. These attributes are added through a join process.

Process Date

200307

Contact Organization

(MEDOT) Maine Department of Transportation

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 16

City

Augusta

State or Province

Postal Code

04333

Country

USA

Contact Voice Telephone

(207) 624-3300

Contact Facsimile Telephone

(207)624-3301

Hours of Service

Monday through Friday 0800 - 1700 EST

Contact Instructions

Contact the Bureau of Planning, Systems Management section. Ask for the GIS Coordinator.

Process Description

Arterial Highways selected from MDOT centerline basemap in 2001, initially by way of query from TIDE, MDOT's data warehouse.

Process Date

2001

Contact Organization

(MEDOT) Maine Department of Transportation

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 16

City

Augusta

State or Province

Postal Code

04333

Country

USA

Contact Voice Telephone

(207) 624-3300

Contact Facsimile Telephone

(207)624-3301

Hours of Service

Monday through Friday 0800 - 1700 EST

Contact Instructions

Contact the Bureau of Planning, Systems Management section. Ask for the GIS Coordinator.

Cloud Cover

Direct Spatial Reference Method

Vector

SDTS Point and Vector Object Type

String

Point and Vector Object Count

126

[smcaptur]

false

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

0.001024

Ordinate Resolution

0.001024

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

Altitude Resolution

1.000000

Altitude Encoding Method

Explicit elevation coordinate included with horizontal coordinates

Entity Type Label

retroart

Entity Type Definition

arc feature class

Entity Type Definition Source

Environmental Systems Research Institute, Inc. (ESRI)

Entity and Attribute Overview

RETROART attributes are limited to default items.

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

RETROART attributes are limited to default items.

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

20030701

Ending Date

Present

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

20031017

Metadata Review Date

20070925

Metadata Future Review Date

Metadata Contact

Contact Organization	(MEDOT) Maine Department of Transportation
Contact Position	GIS Coordinator
Address Type	mailing address
Address	State House Station 16
City	Augusta
State or Province	ME
Postal Code	04333
Country	USA
Contact Voice Telephone	(207) 624-3300
Contact Facsimile Telephone	(207)624-3301
Hours of Service	Monday through Friday 0800 - 1700 EST
Contact Instructions	Contact the Bureau of Planning, Systems Management section. Ask for the GIS Coordinator.

Metadata Standard Name

FGDC Content Standards for Digital Geospatial Metadata

Metadata Standard Version

FGDC-STD-001-1998

Metadata Time Convention

local time