State of Connecticut, Department of Environmental Protection (data editor and publisher)
U.S. Geological Survey, National Mapping Program (data compiler)
19940101
Connecticut Railroads
2005
vector digital data
Hartford, Connecticut, USA
State of Connecticut, Department of Environmental Protection
The USGS is the collector of the data (compiler). The State of Connecticut, Department of Environmental Protection is the creator and maintainer of the data layer (editor) and producer (publisher) of this information for use. The 2005 Edition essentially includes the same set of geographic features published in 1994. However, the 2005 Edition differs from information published in 1994 primarily as a result of corrections and improvements to feature geometry and feature attribute information. Previously undetected errors have been corrected. Also, some feature attribute information (data fields) have been slightly modified and made easier to use. Except for periodic corrections, this layer includes information that is relatively static and does not change over time. Data compiled at 1:24,000 scale.
http://www.ct.gov/deep
Connecticut Railroads is a 1:24,000-scale, feature-based layer that includes railroad features on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps for the State of Connecticut. This layer only includes features located in Connecticut. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and does not represent the railroad system in Connecticut at any one particular point in time. The layer does not depict current conditions and excludes many railroads that have been built, modified, or removed since the time these topographic quadrangle maps were published. The layer includes railroad tracks, bridges, drawbridges, roundhouses, sidings, tracks, tunnels, underpasses, and stations. It does not include train schedule or track related information. Features are linear and represent railroad track centerlines. Attribute information is comprised of codes to cartographically represent (symbolize) rail features on a map. This layer was originally published in 1994. The 2005 edition includes the same rail features published in 1994, but the attribute information has been slightly modified and made easier to use.
Connecticut Railroads is 1:24,000-scale base map data. It depicts the location of all railroads trails published on the USGS topographic quadrangle maps. For base map purposes, use this layer with other 1:24,000-scale base map data such as Hydrography, Roads and Trails, Airports, and Towns. The Railroads layer includes information within Connecticut and is derived from the Railroads Master layer, which includes all railroad features depicted on all of the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut. This layer may be used as a possible data source for other 1:24,000-scale layers having features that should coincide with railroad tracks on the USGS topographic quadrangle maps. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
In 2004, the State of Connecticut Department of Environmental Protection developed automated procedures to systematically maintain feature topology and attribute integrity for a set of related transportation data produced by the agency during the 1980's and 1980's from the 1:24,000-scale USGS DLGs. These layers include Roads and Trails Master, Roads and Trails, Railroads Master, Railroads, Buffered Roads Master, Buffered Roads, Airports Master, and Airports. Automated procedures were developed using ArcInfo Workstation 8.3 software and the Arc Macro Language (AML) as a scripting environment and recorded in an AML file named MAKECOVER.AML for the transportation category of data for the State of Connecticut, Department of Environmental Protection. For additional information related to the original source of data from the U.S. Geological Survey, refer to the Data User Guides and Standards for 1:24,000-Scale Digital Line Graphs and Quadrangle Maps available from the U.S. Geological Survey, National Mapping Program.
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
None planned
-73.672603
-71.822294
42.049413
41.005254
None
digital line graph
DLG
large scale
transportation
railroad
track
siding
station
base map
ISO 19115 Topic Category
transportation
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.
Connecticut
CT
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.
United States of America
USA
None. The data is in the public domain and may be redistributed.
No restrictions or legal prerequisites for using the data. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of 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 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. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Environmental Protection and the U.S. Geological Survey, National Mapping Program as the source for this information. For example, include the following data source description when printing this layer on a map: Railrods - From the Railroads layer, compiled and published by CT DEP and USGS. Source map scale is 1:24,000.
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
860-424-4058
dep.gisdata@ct.gov
Monday to Friday, 08:30 to 16:30 Eastern Standard Time
http://www.cteco.uconn.edu/metadata/dep/browsegraphic/railroadfullview.gif
Full view of Connecticut Railroads
GIF
http://www.cteco.uconn.edu/metadata/dep/browsegraphic/railroaddetailview.gif
Detail view of Connecticut Railroads within the vicinty of New Haven, Connecticut. These railroad features are based on information published on USGS 7.5 minute topographic quadrangle maps.
GIF
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.
The layer retains the feature types identified by the USGS. All attributes have valid values. Values are within defined domains. The accuracy test for the RRARC_COD attribute values was conducted by comparing the railroads published on the source topographic quadrangle maps with 1:24,000-scale check plots or interactive displays of the railroads data on a computer graphic system. These checkplots and computer displays depicted the railroad features in different colors based on their respective RRARC_COD values for comparison with the paper quadrangle maps. The RAIL_CLASS, AV_LEGEND, and IMS_LEGEND attribute values are based on RRARC_COD values. RAIL_CLASS decodes the RRARC_COD field. AV_LEGEND and IMS_LEGEND are broad classifications of RRARC_COD values. The RAIL_CLASS, AV_LEGEND, and IMS_LEGEND fields were populated though table joins to lookup tables. These values were not manually entered.
Line features 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. The tests of logical consistency were performed by the USGS PROSYS program, and subsequently by the State of Connecticut using ESRI ArcInfo software to maintain feature topology in ArcInfo coverage format. The data is topologically clean. The ArcInfo Clean function was repeatedly used following edits to verify topology and enforce a minimum distance between vertices of 4 feet (fuzzy tolerance) and a minimum allowed overshoot length of 10 feet (dangle length).
The completeness of the data reflects the USGS National Mapping Division standards for feature content of the data sources, which are the Large Scale (7.5 minute) Digital Line Graph (DLG) files available from the USGS. For Connecticut, the Large Scale DLG files used to create this layer are for the 1:24,000-scale topographic quadrangle maps published between 1969 and 1984. The Railroads layer is complete in the sense that it accurately reflects the contents of the most recently published USGS topographic quadrangle maps available at the time the State of Connecticut, Department of Environmental Protection began creating the layer. Some newer quadrangle maps have been published by the USGS since 1984, however, the State of Connecticut did not incorporate this information into the Railroads layer. So compared to the most recent set of topographic quadrangle maps available today, the Railroads layer is incomplete, and substantially incomplete when compared to the railroad system in existence today. This data is not updated.
This data complies with United States National Map Accuracy Standards for 1:24,000 scale maps. According to this standard, not more than 10 percent of the points tested are to be in error by more than 1/50 inch (40 feet) measured on the publication scale of a USGS 7.5 minute topographic quadrangle map.
U.S. Geological Survey, National Mapping Program (data compiler and publisher)
1969-1984
USGS Large Scale Digital Line Graph (DLG)
file
Reston, Virginia, USA
U.S Geological Survey
24000
digital tape media
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
Source 1 - DLG
USGS Large Scale Digital Line Graph (DLG) data are digital representations of the cartographic (base map) information published on the 1:24,000-scale, 7.5 minute topographic quadrangle maps. The USGS produces DLG data per 7.5 minute quadrangle. DLG data is organized into categories such as hydrography, boundaries, and transportation. At the time the State of Connecticut began developing the Railroads layer in the late 1980's, Large Scale DLG files were available for 112 of the 115 topographic quadrangle maps necessary to cover Connecticut. Large Scale DLG files were not available for the West Springfield Mass-Conn, Springfield South Mass-Conn, and Hamden Mass-Conn quadrangle. It is important to note that the Large-Scale DLGs were produced in the 1980's at a time when the USGS was developing standards, conventions, and procedures to convert topographic quadrangle maps into digital spatial data. The Connecticut DLG files were produced by digitizing from stable-base mylars using a digitizing tablet to capture the digital data. The features were manually digitized and attributed. Today, there are other methods available for producing DLGs. For additional DLG documentation, refer to the Data User Guides and Standards for 1:24,000-Scale Digital Line Graphs and Quadrangle Maps available from the U.S. Geological Survey, National Mapping Program.
U.S. Geological Survey, National Mapping Program (data compiler)
Unpublished Material
Scanned USGS Topographic Quadrangle Map Mylars
vector digital data
Reston, Virginia, USA
U.S. Geological Survey
24000
digital tape media
1979
publication date
Source 2 - Quadrangle image data
In the absence of Large Scale DLG data, the USGS provided the State of Connecticut with raster image scans of the mylar separates used to publish the black, red, brown, and blue inks for 3 of the 115 topographic quadrangle maps that cover Connecticut. These quadrangles include West Springfield Mass-Conn, Springfield South Mass-Conn, and Hamden Mass-Conn.
State of Connecticut, Department of Environmental Protection (data editor)
U.S. Geological Survey, National Mapping Program (data compiler)
Unpublished Material
Railroad 7.5 minute quadrangle Coverages
vector digital data
Hartford, Connecticut, USA
State of Connecticut, Department of Environmental Protection
24000
disc
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
Source 3 - Quadrangle data
Railroad features for each quadrangle map.
State of Connecticut, Department of Environmental Protection (data editor and publisher)
U.S. Geological Survey, National Mapping Program (data compiler)
19940101
Connecticut Railroads
2005
vector digital data
Hartford, Connecticut, USA
State of Connecticut, Department of Environmental Protection
http://www.ct.gov/deep
24000
disc
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
Source 4 - Railroad
Railroad features for Connecticut combined in a single, statewide layer. Railroad is in ArcInfo Coverage format.
State of Connecticut, Department of Environmental Protection (data editor and publisher)
U.S. Geological Survey, National Mapping Program (data compiler)
19940101
Connecticut Railroads
2005
vector digital data
Hartford, Connecticut, USA
State of Connecticut, Department of Environmental Protection
http://www.ct.gov/deep
24000
disc
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
Source 5 - Railroad.shp
Railroad features for Connecticut combined in a single, statewide layer. Railroad.shp is in Shapefile format.
State of Connecticut, Department of Environmental Protection (data editor and publisher)
U.S. Geological Survey, National Mapping Program (data compiler)
19940101
Connecticut Railroads
2005
vector digital data
Hartford, Connecticut, USA
State of Connecticut, Department of Environmental Protection
http://www.ct.gov/deep
24000
disc
1969
1984
Publication dates of the USGS 7.5 minute topographic quadrangle maps for the State of Connecticut through 1984.
Source 6 - Railroad
Railroad features for Connecticut combined in a single, statewide layer. Railroad is in GeoDatabase Feature Class format.
DLG to ArcInfo coverage format conversion - Using ESRI ArcInfo software, the State of Connecticut, Department of Enviromental Protection converted the Railroad overlay from the Transporation category for each Large Scale DLG file to ArcInfo Coverage format, resulting in one ArcInfo Coverage of linear features for each quadrangle area. The Transportation category of data includes major transportation systems collected in three separate overlays labeled: (1) Roads and Trails, (2) Railroads, and (3) Pipelines, Transmission Lines, and Miscellaneous Transportation Features. Only the Railroad overlay was extracted from the Transportation Layer as a data source for this layer. Each Coverage was converted from UTM to Connecticut State Plane, North American Datum of 1927 (NAD27).
Source 1 - DLG
1985-1987
Source 3 - Quadrangle data
State of Connecticut, Department of Environmental Protection
Deborah Dumin, Jonathan Scull
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Image to vector (ArcInfo coverage) format conversion - Using ESRI ArcInfo software, the black ink image files that depict the railroad (and road and trail features) on three topographic quadrangle maps were georeferenced to Connecticut State Plane, North American Datum of 1927 (NAD27) by registering the image corners to the corresponding quadrangle corner tics. In an interactive ArcInfo editing environment, the railroad track features were visually identified on the background image and manually vectorized. Railroad features that would have been included in the DLG Transportation category by the USGS were were manually digitized on the screen (heads-up digitizing). Features were assigned RRARC_COD values based on their cartographic representation on the topographic quadrangle maps. Check plots were made to inspect digitizing quality and the assignment of RRARC_COD values.
Source 2 - Quadrangle image data
1988
Source 3 - Quadrangle data
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Attribute value verification - The quality and accuracy of the digitizing and coding of the railroad features was checked by comparing the transporation features in each ArcInfo Coverage with the railroad features on the published USGS topographic quadrangle maps. Visual comparisons using 1:24,000 scale paper check plots combined with automated procedures to identify inconsistent attribute coding were the primary means of evaluating and correcting obvious errors with the original DLG data. Where necessary, corrections were made to DLG major and minor codes in the ArcInfo Coverages. The original DLG major and minor codes were modified to form the RRARC_COD attribute in the final Railroads layer.
Source 3 - Quadrangle data
1985-1988
Source 3 - Quadrangle data
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Quadrangle coverage edgematch - Using ESRI ArcInfo software, the individual 7.5 minute quadrangle coverages of Railroad features were systematically edgematched. Features along the edges of adjacent quadrangle were moved to make their end-point coordinates identical through a process of checkerboard style edgematching. Features on every other quadrangle were adjusted. The ends of Railroad segments were snapped to align with the connecting stationary features on adjacent quadrangles if their end-points were generally within 20 feet. On occasion, there were no connecting features on adjacent quadrangles to match to so some features abruptly end at quadrangle boundaries. This is mostly due to variations in quadrangle publication dates. Varying publication dates also explain inconsistent DLG major and minor codes for certain railroads that appear on more than one topographic map. For example, a track that appears on two adjacent quadrangle maps may appear as a track on one map and abandoned track on the adjacent (more recent) map. Consequently, RRARC_COD values for some railroad tracks change when crossing quadrangle boundaries. These inconsistencies were not resolved because the intent was to represent the classification of these features on USGS topographic quadrangle maps.
Source 3 - Quadrangle data
1989-1990
Source 3 - Quadrangle data
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Statewide layer creation - Using ESRI ArcInfo sofware, all of individual 7.5 minute quadrangle coverages were appended to form a single, statewide Railroads layer. Linear features were unsplit (merged) to eliminate unnecessary pseudo nodes between similar features from adjacent quadrangle areas. Final line feature topology was established with ArcInfo Fuzzy and Dangle tolerances verified at 4 and 10 feet, respectively. At this step in the process the Railroads layer was fully attributed and ready for use. Not all data fields from the orginal DLG files were preserved by this step in the process. A new data field, AV_LEGEND, was added to more easily classify and cartographically represent features when displaying the information with software such as ArcView.
Source 3 - Quadrangle data
1994
Source 4 - Railroad
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Datum conversion - Using ESRI ArcInfo software, the Railroads layer was converted from the Connecticut State Plane Coordinate System of 1927 (NAD27) to the Connecticut State Plane Coordinate System of 1983 (NAD83). The NADCON (North American Datum CONversion) data transformation was used.
Source 4 - Railroad
1999
Source 4 - Railroad
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Attribute enhancements - RAIL_CLASS and AV_LEGEND attributes were changed from storing abbreviated values in upper case (e.g. TRACK, SIDING, STATION ) to full length values in both upper and lower case (e.g. Track, Siding, Station). Additionally the IMS_LEGEND attribute was added to establish a very general classification scheme for symbolizing railroad features with Internet mapping software environments such as ArcIMS. The following attributes from the original DLG files were removed from the data table due to poor data quality: PHOTRV_FLG and QUAD_NO. These attribute values were inconsistent, not verified and of limited value to the State of Connecticut. Using Arc Macro Language (AML), an automated process (MAKECOVER.AML) was developed to maintain consistent attribute values by programmatically joining lookup data tables to decode numeric code fields. The MAKECOVER.AML also created this particular copy of the Railroads layer that is clipped to the State of Connecticut boundary.
Source 4 - Railroad
2001-2004
Source 4 - Railroad
State of Connecticut, Department of Environmental Protection
Elizabeth Doran, Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Create 2005 Edition of Railroad - The automated process (software program), MAKECOVER.AML, developed for the previous process step was executed in 2005 in order to create a 2005 edition (copy) of Railroad that captures recent corrections and enhancements made to the layer. The MAKECOVER.AML program was last run in 2005, and the name of the resulting ArcInfo coverage created by this automated process is RAIL. Note, this particular run of the MAKECOVER.AML created a copy of the Railroad ArcInfo coverage that is clipped to the State of Connecticut boundary and is named RAIL instead of RAILMASTER. Prior to 2005, the Railroads layer in ArcInfo Coverage format that was clipped to the state of Connecticut boundary was named RAILROADCT.
Source 4 - Railroad
2005
Source 4 - Railroad
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Export to Shapefile format - Converted line feature data from an ArcInfo coverage named RAIL to a Shapefile named Railroad.shp. Excluded the FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, RAIL#, RAIL-ID attributes from the Shapefile because their values are only maintained by ArcInfo software with spatial data that is ArcInfo coverage format.
Source 4 - Railroad
2005
Source 5 - Railroad.shp
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
Convert to GeoDatabase Feature Class format - Defined new Feature Class named Railroad; and imported the attribute definitions, loaded features and imported metadata from Railroad.shp shapefile.
Spatial Reference Properties for Feature Class:
Coordinate System: NAD_1983_StatePlane_Connecticut_FIPS_0600_Feet
XY Domain MinX: 100000; MaxX: 2247483.645
XY Domain MinY: 200000; MaxY: 2347483.645
Precision: 1000
Source 5 - Railroad.shp
2006
Source 6 - Railroad
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106
USA
860-424-3540
State of Connecticut, United States of America
Vector
String
3993
Lambert Conformal ConicLambert Conformal Conic41.20000041.866667-72.75000040.833333999999.999996499999.999998
coordinate pair
0.000250
0.000250
survey feet
North American Datum of 1983
Geodetic Reference System 80
6378137.000000
298.257222
1.000000
Explicit elevation coordinate included with horizontal coordinates
Connecticut Railroads
Railroads, Rail Sidings and Railroad Stations as line features
State of Connecticut, Department of Environmental Protection and U.S. Geological Survey, National Mapping Program
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
ESRI
Coordinates defining the features.
RRARC_COD
Railroad Arc Code. Numeric values that identify railroad feature types.
State of Connecticut, Department of Environmental Protection
0
Not Railroad
CT DEP, USGS
201
Railroad
CT DEP, USGS
202
Railroad in Street or Road
CT DEP, USGS
204
Carline
CT DEP, USGS
208
Railroad Siding
CT DEP, USGS
209
Perimeter or Limit of yard
CT DEP, USGS
400
Perimeter of Railroad Station
CT DEP, USGS
402
Roundhouse
CT DEP, USGS
2201
Two Track Railroad
CT DEP, USGS
4201
Four Track Railroad
CT DEP, USGS
209201
Railroad, Perimeter or Limit of Yard
CT DEP, USGS
209208
Railroad Siding, Perimeter or Limit of Yard
CT DEP, USGS
601201
Railroad, in Tunnel
CT DEP, USGS
601208
Railroad Siding, in Tunnel
CT DEP, USGS
602201
Railroad, Overpassing on Bridge
CT DEP, USGS
602208
Railroad Siding, Overpassing on Bridge
CT DEP, USGS
603201
Railroad, Abandoned
CT DEP, USGS
603208
Railroad Siding, Abandoned
CT DEP, USGS
605201
Railroad, Underpassing
CT DEP, USGS
605202
Railroad in Street or Road, Underpassing
CT DEP, USGS
605208
Railroad Siding, Underpassing
CT DEP, USGS
605210
Arbitrary Line Extension, Underpassing
CT DEP, USGS
606208
Railroad Siding, Narrow Gauge
CT DEP, USGS
607201
Railroad, in Snowshed or under Structure
CT DEP, USGS
607208
Railroad Siding, in Snowshed or under Structure
CT DEP, USGS
611201
Railroad, on Drawbridge
CT DEP, USGS
611202
Railroad in Street or Road, on Drawbridge
CT DEP, USGS
4209201
Four Track Railroad, Perimeter or Limit of Yard
CT DEP, USGS
4602201
Four Track Railroad, Overpassing on Bridge
CT DEP, USGS
4605201
Four Track Railroad, Underpassing
CT DEP, USGS
4611201
Four Track Railroad, on Drawbridge
CT DEP, USGS
605603201
Railroad, Abandoned, Underpassing
CT DEP, USGS
605603208
Railroad Siding, Abandoned, Underpassing
CT DEP, USGS
RAIL_CLASS
Railroad Class. Text values that correspond to the numeric RRARC_COD attribute values. RAIL_CLASS is the English language equivalent of (decodes) the RRARC_COD field.
State of Connecticut, Department of Environmental Protection
See Enumerated Domain Value Definitions for RRARC_COD attribute.
AV_LEGEND
ArcView Legend. Text field for symbolizing railroad feature types on a map.
State of Connecticut, Department of Environmental Protection
Abandoned
This category includes RRARC_COD values 603201, 603208, 605603201, 605603208.
CT DEP
Bridge
This category includes RRARC_COD values 602201 and 602208.
CT DEP
Drawbridge
This category includes RRARC_COD values 611201, 611202 and 4611201.
CT DEP
Narrow Gauge
This category includes RRARC_COD value 606208.
CT DEP
Roundhouse
This category includes RRARC_COD value 402.
CT DEP
Siding
This category includes RRARC_COD values 208, 209208, and 607208.
CT DEP
Track
This category includes RRARC_COD values 201, 202, 204, 2201, 4201, 209201, 607201, 4209201, and 4602201.
CT DEP
Tunnel
This category includes RRARC_COD values 601201 and 601208.
CT DEP
Underpass
This category includes RRARC_COD values 605201, 605202, 605208, 605210, and 4605201.
CT DEP
Station
This category includes RRARC_COD values 209 and 400.
CT DEP
IMS_LEGEND
Internet Mapping Software Legend. Text field for symbolizing railroad feature types on an Internet map.
State of Connecticut, Department of Environmental Protection
Abandoned
This category includes RRARC_COD values 603201, 603208, 605603201, and 605603208.
CT DEP
Siding
This category includes RRARC_COD values 208, 209208, and 607208.
CT DEP
Station
This category includes RRARC_COD values 209, 400 and 402.
CT DEP
Track
This category includes RRARC_COD values 201, 202, 204, 2201, 4201, 601201, 601208, 605201, 605202, 605208, 605210, 606208, 607201, 611201, 611202, 4209201, 4602201, 4605201, and 4611201.
CT DEP
SHAPE.len
Includes linear railroad features such as includes railroad tracks, bridges, drawbridges, roundhouses, sidings, tracks, tunnels, underpasses, and stations published on the U.S. Geological Survey 7.5 minute topographic quadrangle maps. Information encoded about features includes railroad feature type classification, and two standard symbology classification schemes.
For additional information related to the original source of data from the U.S. Geological Survey, refer to the Data User Guides and Standards for 1:24,000-Scale Digital Line Graphs and Quadrangle Maps available from the U.S. Geological Survey, National Mapping Program.
State of Connecticut, Department of Enviromental Protection
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106-5127
USA
860-424-3540
860-424-4058
dep.gisdata@ct.gov
Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Connecticut Railroads
Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of 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 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.
Shapefile, Feature Class, ArcInfo Coverage
ArcGIS
Zip file
http://www.ct.gov/deep
An online copy of the data may be accessed without charge.
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.
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
20111208
State of Connecticut, Department of Environmental Protection
Howie Sternberg
mailing and physical address
79 Elm Street
Hartford
Connecticut
06106-5127
USA
860-424-3540
860-424-4058
dep.gisdata@ct.gov
Monday to Friday, 08:30 to 16:30 Eastern Standard Time
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile