View Metadata
Traffic Signals, Cambridge, Massachusetts, August 2007
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- Cambridge (Mass.). Geographic Information Systems
- Originator
- Cambridge (Mass.). Dept. of Traffic and Parking
- Publication Date
- 2009
- Title
- Traffic Signals, Cambridge, Massachusetts, August 2007
- Geospatial Data Presentation Form
- vector digital data
- Publication Information
- Publication Place
- Cambridge, Massachusetts
- Publisher
- City of Cambridge, GIS Dept.
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-cambridge09-trafficsignals
- Abstract
- This layer contains point features representing traffic signals in Cambridge, Massachusetts.
- Purpose
- Created by the Traffic and Parking Department Transportation Engineer for analysis and mapping. Also used within traffic modeling software, Synchro.
- Temporal Extent
- Currentness Reference
- revision date
- Time Instant
- 200708
- Bounding Box
- West
- -71.157513
- East
- -71.072128
- North
- 42.402686
- South
- 42.353451
- Theme Keyword
- Municipal
- Theme Keyword Thesaurus
- HGL Category Keyword Thesaurus
- Theme Keyword
- Traffic signs and signals
- Electronic traffic controls
- Transportation
- Theme Keyword Thesaurus
- LCSH
- ISO Topic Category
- transportation
- Place Keyword
- Massachusetts
- Cambridge
- Place Keyword Thesaurus
- GNIS
- Temporal Keyword
- Access Restrictions
- Access is granted to Harvard University Affiliates only. Affiliates are limited to current faculty, staff and students.
- Use Restrictions
- For educational non-commercial use only. The City of Cambridge provides Geographic Information Systems ("GIS") data in good faith. The City makes no warranty in regard to the data whatsoever, including, but not limited to, a warranty of the accuracy of the data. The party requesting the data agrees that the City has no liability arising from any incomplete, incorrect, inaccurate or misleading data provided.
- Status
- Complete
- Maintenance and Update Frequency
- As needed
- Point of Contact
- Contact Person
- GIS Manager
- Delivery Point
- 831 Massachusetts Ave., 2nd Floor
- City
- Cambridge
- State
- MA
- Postal Code
- 02139
- Contact Telephone
- 617-349-4140
- Contact Facsimile Telephone
- 617-349-6165
- Contact Electronic Mail Address
- gis@cambridgema.gov
- Native Data Set Environment
- Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
- Data Quality Information
- Attribute Accuracy Report
- Screen digitized at intersections using ortho photos.
- Logical Consistency Report
- Unknown
- Completeness Report
- Unknown
- Horizontal Positional Accuracy Report
- Unknown
- Lineage
- Source
- Originator
- Cambridge (Mass.). Geographic Information Systems
- Publication Date
- 20091027
- Title
- Citywide vector data
- Geospatial Data Presentation Form
- vector digital data
- Publication Information
- Publication Place
- Cambridge, MA
- Publisher
- City of Cambridge GIS Department
- Other Citation Details
- 1 DVD-ROM ; 4 3/4 in.
- Type of Source Media
- DVD-ROM
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 20091027
- Source Currentness Reference
- publication date
- Contribution
- Source data disc.
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- Entity point
- Point and Vector Object Count
- 250
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Planar
- Grid Coordinate System
- Grid Coordinate System Name
- State Plane Coordinate System
- State Plane Coordinate System
- SPCS Zone Identifier
- 2001
- Lambert Conformal Conic
- Planar Coordinate Information
- Planar Coordinate Encoding Method
- coordinate pair
- Coordinate Representation
- Abscissa Resolution
- 0.000011
- Ordinate Resolution
- 0.000011
- 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
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- Cambridge09_TrafficSignals
- Entity Type Definition
- Traffic Signals
- Entity Type Definition Source
- Cambridge GIS
- Attributes
- OBJECTID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- ID
- Unique identification for each street segment (Unique whole numbers.)
- Definition Source
- Cambridge GIS
- MAIN
- Street with higher traffic flow at intersection (Text.)
- Definition Source
- Cambridge GIS
- MINOR1
- Streets with lesser traffic flow at intersection (Text.)
- Definition Source
- Cambridge GIS
- MINOR2
- Streets with lesser traffic flow at intersection (Text.)
- Definition Source
- Cambridge GIS
- MINOR3
- Streets with lesser traffic flow at intersection (Text.)
- Definition Source
- Cambridge GIS
- CORRIDOR
- Traffic corridor (Text.)
- Definition Source
- Cambridge GIS
- CONTROLLER
- Type of traffic controller (Text.)
- Definition Source
- Cambridge GIS
- LAST_COUNT
- STUDY
- AM_ENTER
- PM_ENTER
- Z21PED
- Pedestrian crossing (?)
- Definition Source
- Cambridge GIS
- LPI
- Unknown
- Definition Source
- Cambridge GIS
- AUDIBLE
- Pedestrian device with audible
- Definition Source
- Cambridge GIS
- LANDMARK
- Landmark feature at intersection (Text.)
- Definition Source
- Cambridge GIS
- NOTES
- Notes on feature (Text.)
- Definition Source
- Cambridge GIS
- MODEL
- Traffic light model (Text.)
- Definition Source
- Cambridge GIS
- CLSNUMBER
- Unknown
- Definition Source
- Cambridge GIS
- PED_RECALL
- Pedestrian recall? (Text.)
- Definition Source
- Cambridge GIS
- PED_OPERAT
- Pedestrian operating? (Text.)
- Definition Source
- Cambridge GIS
- MASTER_GRP
- Master box operation? (Text.)
- Definition Source
- Cambridge GIS
- SHAPE
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- Distribution Information
- Format Name
- Shapefile
- Distributor
- Harvard Geospatial Library
- Online Access
- http://hgl.harvard.edu
- Name
- Metadata Reference Information
- Metadata Date
- 20100623
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Harvard Geospatial Library
- Contact Position
- Geospatial Resources Cataloger
- Contact Address
- Address
- Harvard University Library
- Address
- Office For Information Systems
- Address
- 90 Mount Auburn Street
- City
- Cambridge
- State or Province
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Hours of Service
- Monday - Friday, 9:00 am - 4:00 pm EST-USA
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
