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Connecticut Trail Roadway

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: State of Connecticut, Department of Energy and Environmental Protection (data compiler, editor and publisher)
Publication_Date: 20060601
Title:
Connecticut Trail Roadway
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Hartford, Connecticut, USA
Publisher: State of Connecticut, Department of Energy and Environmental Protection
Other_Citation_Details:
Refer to the Trail System data table in the Statewide Trails Database for complete listing of all agencies and organizations collecting and providing information for the Statewide Trails Database. Data compiled at various scales.
Online_Linkage: http://www.ct.gov/deep
Description:
Abstract:
Roadway line features are optional features in the Statewide Trails Database used to place a trail system in context with nearby park roads or park entrance. They are very simple line features used to represent driveways, park roads, forest roads, and occasionally public roads on or along the public property where the trail system exists. Roadway line features are optional. They are not used for mapping bike routes. Trail line features are used for mapping bike routes.
Purpose:
To facilitate the management and sharing of information for trail mapping, management, planning, and information dissemination purposes. Roadway is a background layer of park and forest roads, driveways and nearby public roads that can be shown on detailed maps of individual parks.
Supplemental_Information:
Statewide Trails Database model version number 1.0. Refer to the Getting_Started.htm document for how to prepare and load existing trail data into the Statewide Trails Database format. A Statewide Trails extension (statewidetrails.avx) is also available for ArcView 3x software for creating identical field attributes in Shapefile format. The extension is useful in preparing data initially collected and maintained in Shapefile format for loading into GeoDatabase Feature Class format.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20060601
Currentness_Reference:
publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: As data is collected by data collectors and supplied by data providers to the Statewide Trails Database
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.552809
East_Bounding_Coordinate: -71.788131
North_Bounding_Coordinate: 41.727052
South_Bounding_Coordinate: 41.358244
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: park road
Theme_Keyword: forest road
Theme_Keyword: driveway
Theme_Keyword: roadway
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Place_Keyword: Connecticut
Place_Keyword: CT
Place:
Place_Keyword_Thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Place_Keyword: United States of America
Place_Keyword: USA
Access_Constraints: None. The data is in the public domain and may be redistributed.
Use_Constraints:
No restrictions or legal prerequisites for using the data. Trail line feature information was prepared by collecting trail positions in the field using GPS equipment, digitizing trail maps, compiling information onto a planimetric correct base and digitizing, or by copying previously digitized road and trail centerline features. Horizontal accuracy varies depending on the methodology used to map and digitize each trail system. Consequently, as a whole, these data are generally not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). Refer to the Horizontal Accuracy Notes attribute in the Trail line feature and Roadway line feature class for more specific horizontal accuracy assessments when mapping individual trail systems at larger (more accurate) scales. Trail Access point and Trail Interest point feature information was prepared using similar methods, with horizontal accuracy varying accordingly. Although this data set has been used by the State of Connecticut, Department of Energy and Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Energy and Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Energy and Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. The State of Connecticut, Department of Energy and Environmental Protection and all other Originators (referenced in the Citation section of this metadata), should be acknowledged as the data source in products derived from the trail data. For example, include the following data source description on a map: Trails - From the Connecticut Statewide Trails layer, compiled and published by CT DEEP and other trail data collecting agencies and organizations. Source map scale varies.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Energy and Environmental Protection
Contact_Address:
Address_Type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cteco.uconn.edu/metadata/dep/browsegraphic/trailsdetailview.gif
Browse_Graphic_File_Description:
Detail view of a Trail System with Trail, Trail Access, Point of Interest and Roadway features.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes have valid values. Values are within defined domains. Accuracy tests performed by data collector and data provider.
Logical_Consistency_Report:
Roadway line features are very simple line features that connect to each other at their end points. Line features are expected to conform to the following topological rules. Lines are single part. There are no duplicate lines. Lines do not self overlap. Lines do not overlap other lines. Lines intersect only at nodes, and nodes anchor the ends of all lines. Lines do not overshoot or undershoot other lines they are supposed to meet and intersect. 

For example, a roadway intersection is composed of four intersecting roadway features that share a common end point location where the four features meet and intersect. A "T" intersection is composed of three intersecting roadway features that share a common end point.

Between intersections, a change in condition along the length of a road is also reason for creating separate Roadway line features where two features are necessary to describe where park road changes from a paved to gravel surface, for example.

Roadway lines do not duplicate or overlap in parallel to Trail line features. 

Single part line features that do not grossly self-intersect, intersect or overlap other single part line features are preferable. However, for reasons of practicality, minor gaps and overlaps are acceptable as long as they do not mask differences in roadway class or surface type, for example. The decision to accept small gaps and overlaps at the ends of line features is left to the professional judgment of the data collector and data provider (agency). 

Establishment of logical consistency was performed by the respective data collector (agencies) responsible for manually creating and controlling feature topology in either Shapefile or GeoDatabase format. No automated procedures or tests were performed to guarantee desired topology other than visual inspection.
Completeness_Report:
As complete as data is collected by data collectors and supplied by data providers to the Statewide Trails Database. Because it is designed to include more and more information over time, the Statewide Trails Database does not represent a complete inventory of all greenways, trails, and bike routes. Rather, it is intended to be a Statewide repository of currently available information.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal accuracy varies depending on the methodology used by data collectors to compile, map and digitize individual trail systems. Information was prepared by collecting trail positions in the field using GPS equipment, digitizing trail maps, compiling information onto a planimetric correct base and digitizing, or by copying previously digitized road and trail centerline features.

A conservative estimate of overall horizontal accuracy is based on the assumption that Trail line feature data is generally collected at scales that are at least as accurate as 1:24,000 scale (1 inch = 2,000 feet), which is the scale of the USGS 7.5 minute topographic quadrangle map. But this is only an assumption on the part of the State of Connecticut, Department of Energy and Environmental Protection (CT DEEP), which coordinated the design of the Statewide Trails Database. For example, GPS data collected by CT DEEP is generally expected to be at 1-4m accuracy, data interpreted and digitized from 2004 aerial photographs at +- 20ft, and data derived from 1:24,000-scale road and trail centerlines at +- 40ft.

Refer to the Horizontal Accuracy Notes attribute in both the Trail line feature and Roadway line feature classes for more specific horizontal accuracy assessments when mapping individual trail systems at larger (more accurate) scales. This field describes the data collection method, data sources and horizontal accuracy of the individual line feature, based on the type of equipment and environmental conditions present if GPS was used to collect information in the field, or the horizontal accuracy of geo-referenced aerial photographs, maps, and existing road data upon which digitized trail features are based.
Lineage:
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Spatial_Data_Organization_Information:
Indirect_Spatial_Reference_Method:
State Park, State Forest, municipal park, land trust, or trail system name
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 313
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Lambert Conformal Conic
Standard_Parallel: 41.200000
Standard_Parallel: 41.866667
Longitude_of_Central_Meridian: -72.750000
Latitude_of_Projection_Origin: 40.833333
False_Easting: 999999.999996
False_Northing: 499999.999998
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000250
Ordinate_Resolution: 0.000250
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Connecticut Trail Roadway
Entity_Type_Definition:
Simple line features used to represent driveways, park roads, forest roads, and occasionally public roads on or along the public property where the trail system exists. Roadway features are optional.
Entity_Type_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection and other trail data collecting agencies and organizations in Connecticut.
Attribute:
Attribute_Label: OBJECTID
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: TRAILSYSID
Attribute_Definition:
Trail System Id - An Id that associates and relates the Roadway line feature to a Trail System. This is a required field that matches a value in the Trail_System table. All Roadway line features that are part of a Trail System are assigned the same Trail System Id. Note, an agency or organization wishing to provide data for inclusion in the Connecticut Statewide Trails database must use Trail System Ids assigned by the State of Connecticut, Department of Energy and Environmental Protection that do not conflict with Ids used by other trail data providers. Please contact the State of Connecticut, Department of Energy and Environmental Protection at 860-424-3540 to obtain a block of Trail Systems Ids for your use. Trail System Ids are allocated to data providers in blocks of 50.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1 - 100
Enumerated_Domain_Value_Definition:
Block of 100 Trail System Ids reserved for trail systems submitted by CT DEP
Enumerated_Domain:
Enumerated_Domain_Value: 101 - 150
Enumerated_Domain_Value_Definition:
First block of 50 Trail System Ids.
Enumerated_Domain:
Enumerated_Domain_Value: 151 - 200
Enumerated_Domain_Value_Definition:
Second block of 50 Trail System Ids.
Enumerated_Domain:
Enumerated_Domain_Value: 201 - 250
Enumerated_Domain_Value_Definition:
Third block of 50 Trail System Ids.
Enumerated_Domain:
Enumerated_Domain_Value: 251 - 300
Enumerated_Domain_Value_Definition:
Fourth block of 50 Trail System Ids.
Enumerated_Domain:
Enumerated_Domain_Value: etc.
Enumerated_Domain_Value_Definition:
Continued allocation of Trail System Ids in blocks of 50, as required.
Attribute:
Attribute_Label: ROADNAME
Attribute_Definition:
Road Name - Indicates name of the road. If not a public road, include name that the park uses to refer to the road. Leave blank if road is unnamed.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Unrepresentable_Domain:
Text value
Attribute:
Attribute_Label: ROADCLASS
Attribute_Definition:
Road Class - A simple classification of roads primarily used to cartographically represent these features on a map. Default value is Park Road.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Driveway
Enumerated_Domain_Value_Definition:
Typically a small driveway onto the park property used by park manager or park department and not open to the public.
Enumerated_Domain:
Enumerated_Domain_Value: Forest Road
Enumerated_Domain_Value_Definition:
Road in a state forest.
Enumerated_Domain:
Enumerated_Domain_Value: Park Road
Enumerated_Domain_Value_Definition:
A park road in a state park, municipal park, etc. This is the default value.
Enumerated_Domain:
Enumerated_Domain_Value: Public Road
Enumerated_Domain_Value_Definition:
A local road.
Enumerated_Domain:
Enumerated_Domain_Value: Abandon Public Road
Enumerated_Domain_Value_Definition:
A local road that has been abandoned and no longer used. Typically and old dirt road.
Attribute:
Attribute_Label: ROADSURF
Attribute_Definition:
Road Surface - Generally indicates the type of road surface. Default value is Paved.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Gravel
Enumerated_Domain_Value_Definition:
Smaller than large stone and rocky surface.  Surface usually not hard enough to be ADA accessible.
Enumerated_Domain:
Enumerated_Domain_Value: Paved
Enumerated_Domain_Value_Definition:
Asphalt, concrete, brick, bituminus, or other hard surface. This is the default value.
Enumerated_Domain:
Enumerated_Domain_Value: Recycled
Enumerated_Domain_Value_Definition:
Hard surface paved with recycled road pavement.
Enumerated_Domain:
Enumerated_Domain_Value: Soil
Enumerated_Domain_Value_Definition:
Earthern, dirt or other soft natural soil surface. Surface usually not hard enough to be ADA accessible.
Enumerated_Domain:
Enumerated_Domain_Value: Stone
Enumerated_Domain_Value_Definition:
Large stone and rocky surface. Composed mainly of stones and cobbles larger than gravel-sized particles (Gravel surface). Surface usually not hard enough to be ADA accessible.
Enumerated_Domain:
Enumerated_Domain_Value: Stone Dust
Enumerated_Domain_Value_Definition:
Packed stone dust. Typically hard enough to be ADA accessible.
Attribute:
Attribute_Label: PUBACCESS
Attribute_Definition:
Public Access Permitted - Indicates whether the road feature is open to the general public. This is a True-False field. Typically, most State Park or Municipal Park roads are open. But some may be closed so use this field to flag maintenance or utility roads that are off limits to the general public, which should not be shown on a hiking map, for example.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: True
Enumerated_Domain_Value_Definition:
Road is open to the public. This is the default value.
Enumerated_Domain:
Enumerated_Domain_Value: False
Enumerated_Domain_Value_Definition:
Road is closed to the public.
Enumerated_Domain:
Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition:
True - False value is unknown
Attribute:
Attribute_Label: TIMEPERIOD
Attribute_Definition:
Data Time Period - The time period during which data was collected in the field with GPS equipment or automated using GIS software to digitize or copy the feature from another data source.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute:
Attribute_Label: HORIZACCUR
Attribute_Definition:
Horizontal Accuracy Notes - A notes field used to describe the data collection method, data sources and horizontal accuracy of the individual line feature, based on the type of equipment and environmental conditions present if GPS was used to collect information in the field, or the horizontal accuracy of geo-referenced aerial photographs, maps, and existing road data upon which digitized trail features are based.
Attribute_Definition_Source:
State of Connecticut, Department of Energy and Environmental Protection
Attribute_Domain_Values:
Unrepresentable_Domain:
Examples: GPS at 1-4m accuracy; Interpreted and digitized from 2004 aerial photographs at +- 20ft; Derived from 1:24,000 road and trail centerlines, which are within +- 40ft
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.len
Overview_Description:
Entity_and_Attribute_Overview:
Table Relationships:

1. Roadway line features are joined to the Trail_System table via the TrailSysId field.

Attributes:

1. Trail System Id - Uniquely identifies a logical system of trails and is a common identifier found in all tables. All Trail line, Trail Access point, Trail Interest point, and Roadway line features for a given Trail System are assigned the same Trail System Id. An agency or organization wishing to provide trail data for inclusion in the Connecticut Statewide Trails Database must use Trail System Ids assigned by the State of Connecticut, Department of Energy and Environmental Protection so that they do conflict with Trail System Ids used by other trail data providers. Please contact the Connecticut Department of Energy and Environmental Protection at 860-424-3540 to obtain a block of Trail Systems Ids for your use. Trail System Ids are allocated to data providers in blocks of 50. 

2. Field Types - Most fields are text fields except for Trail System Id (TrailSysId) and the Town Number (TownNo) field in the Trail Access Point feature class.

3. Text Fields - Most fields without domains are free-form text fields. Depending on the field, certain rules and conventions need to be applied when entering data in these fields. For example, the Trail Marker (TrailMark) field in the Trail line feature class is to be left blank if a trail is not marked. Do not populate the field with the words "unmarked" or "unblazed", for example. Leave all free-form text fields blank if information is not applicable.

4. Field Domain Range - Attribute domains represent a fixed list of values to choose from for a particular field. Domain values are case sensitive text field values that must be entered exactly as specified in the metadata enumerated domains. For example the Bike attribute uses a true-false domain that stores text information as either "True" or "False", not "TRUE" or "FALSE"; "true" or "false"; "yes" or "no", or 0 or -1, etc. Any value other than "True" or "False" is invalid, with the exception of the NULL option, which is a field value that is only available to data in GeoDatabase and not Shapefile format. Adhering to domain values is important to keep in mind when using the field Calculate option in ArcView 3x or ArcGIS 9x to assign domain attribute values to selected features at once. It is easy to inadvertently calculate values outside the range of a field's domain.

5. Default Values - The default domain values for each field is indicated in the metadata for the field such as "True" for the Hiking or "Unpaved" for the Trail Surface (TrailSurf) field in the Trail line feature class. These are the default values when adding new table records or digitizing new features.

6. Null Field Values - For fields with enumerated domains in GeoDatabase format, NULL is a valid domain value that can be used to signify information is unknown. NULL implies that the information is Unknown. It does not imply that the information is not applicable. 

7. Null Field Values (Shapefile format) - For fields with enumerated domains in Shapefile format, NULL is not a valid value so do not enter NULL or "NULL" even though NULL is allowed in GeoDatabase format. For data in Shapefile, leave the field blank if the value is unknown.
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Energy and Environmental Protection
Contact_Address:
Address_Type: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Resource_Description: Connecticut Statewide Trails Database
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile, Feature Class
Format_Version_Number: ArcGIS
File_Decompression_Technique: Zip file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://www.ct.gov/deep
Fees: An online copy of the data may be accessed without charge.
Custom_Order_Process:
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
Technical_Prerequisites:
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
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Metadata_Reference_Information:
Metadata_Date: 20111215
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State of Connecticut, Department of Energy and Environmental Protection
Contact_Person: Howie Sternberg
Contact_Address:
Address_Type: mailing address
Address:
79 Elm Street
City: Hartford
State_or_Province: Connecticut
Postal_Code: 06106-5127
Country: USA
Contact_Voice_Telephone: 860-424-3540
Contact_Facsimile_Telephone: 860-424-4058
Contact_Electronic_Mail_Address: dep.gisdata@ct.gov
Hours_of_Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
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
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