View Metadata

Cambridge Building Footprint Polygons

Identification Information
Citation
Originator
City of Cambridge Geographic Information System (CGIS)
Publication Date
1999
Title
Cambridge Building Footprint Polygons
Geospatial Data Presentation Form
vector digital data
Publication Information
Publication Place
Cambridge, MA.
Publisher
City of Cambridge
Online Linkage
https://hgl.harvard.edu/catalog/harvard-cambuildingp
Abstract
This map data layer represents the footprints of all buildings, larger than 100 square feet, for the City of Cambridge, Massachusetts. Coverage includes Institutional (public buildings, including schools, libraries, churches, government centers, hospitals, major government institutions); Municipal (City owned buildings); Subway headhouses (outline of subway headhouse). Detached garages are included, but other minor structures such as sheds are not. No structure smaller than 10'x10' is represented.
Purpose
These data are intended for researchers, students, and policy makers for reference and mappng purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. More advanced user applications may focus on urban and regional planning, and associated themes such as economic and demographic analysis as well as disaster and emergency planning (generally building footprints layers are useful in identifying building structures and to facilitate applications that search by street name and address).
Temporal Extent
Currentness Reference
publication date
Time Instant
19990527
Bounding Box
West
-71.160999
East
-71.063592
North
42.404388
South
42.353145
ISO Topic Category
planningCadastre
structure
Theme Keyword
Municipal
Theme Keyword Thesaurus
HGL Category Keyword Thesaurus
Theme Keyword
Real property
Buildings
Urban land use
City planning
Theme Keyword Thesaurus
LCSH
Theme Keyword
Building footprints
Theme Keyword Thesaurus
None
Place Keyword
Cambridge
Massachusetts
Place Keyword Thesaurus
GNIS
Temporal Keyword
Access Restrictions
Access is granted to licensee (Harvard University) only. Available only to Harvard University affiliates.
Use Restrictions
For educational non-commercial use only. The City of Cambridge makes no claims, no representations, and no warranties, express or implied, concerning the validity (express or implied), the reliability or the accuracy of the GIS data and GIS data products furnished by the City, including the implied validity of any uses of such data
Status
Complete
Maintenance and Update Frequency
Unknown
Point of Contact
Contact Organization
City of Cambridge Management Information Systems
Delivery Point
831 Massachusetts Ave
Delivery Point
2nd Floor
City
Cambridge
State
MA
Postal Code
02139
Country
USA
Contact Telephone
(617) 349-4140
Contact Facsimile Telephone
(617) 349-6165
Contact Electronic Mail Address
gis@ci.cambridge.ma.us
Hours of Service
Monday through Friday 8:30 A.M. to 5:00 P.M. EST-USA
Credit
GIS data supplied by City of Cambridge GIS.
Native Data Set Environment
Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700
Data Quality Information
Horizontal Positional Accuracy Report
Color aerial photography at a scale of 1" = 400' was captured on March 29, 1995 for the subsequent development of base map data. Forward lap was 80% 2%. Sidelap was a minimum of 30% . Crab was less than 3 degrees when measured with respect to any two successive exposures. Planimetric data is compiled in accordance with the ASPRS Accuracy Standards for Large-Scale Class 1 maps. This means that the limiting RMS error for all well defined points shall be 1.0' on the ground. Control Points: The plotted position of each control point shall lie to an accuracy of one-hundredth (1/100) of an inch of its true position, as expressed by the State Plane coordinate for that point.
Lineage
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
G-polygon
Point and Vector Object Count
16097
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000000
Longitude Resolution
0.000000
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_WGS_1984
Ellipsoid Name
WGS_1984
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257224
Vertical Coordinate System Definition
Altitude System Definition
Altitude Datum Name
North American Vertical Datum of 1988
Altitude Resolution
1.000000
Altitude Encoding Method
Explicit elevation coordinate included with horizontal coordinates
Entity and Attribute Information
Entity Type
Entity Type Label
Building Footprints
Entity Type Definition
Polygons represent building footprints
Entity Type Definition Source
CGIS (Cambridge GIS)
Attributes
TIM.CAMBUILDINGP.AREA
Polygon area in square coverage units
Definition Source
Computed
PERIMETER
Perimeter of feature in map units
Definition Source
Computed
BUILDING_
Feature Identifier
Definition Source
CGIS
BUILDING_I
Feature Identifier
Definition Source
CGIS
FCODE
Numeric Building Type Code
0
Unknown
10
Residential, industrial, commercial
20
Institutional
30
Municipal
40
Subway headhouse
99
Interior polygon of a building
Definition Source
CGIS
GID
X_COORD
Decimal degrees latitude for point
Definition Source
CGIS
Y_COORD
Decimal degrees longitude for point
Definition Source
CGIS
SHAPE
Feature geometry. (Coordinates defining the features.)
Definition Source
ESRI
SHAPE.AREA
Area of feature in square coverage units
Definition Source
Computed
SHAPE.LEN
Length of feature in map units
Definition Source
Computed
SHAPE.FID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
ESRI
Distribution Information
Format Name
Shape
Distributor
Harvard Geospatial Library
Name
Metadata Reference Information
Metadata Date
20030917
Metadata Contact
Contact Information
Contact Person Primary
Contact Person
Contact Organization
Harvard Geospatial Library
Contact Address
Address
Harvard University Library
Address
Office For Information Systems
Address
1280 Massachusetts Avenue
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
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
Metadata Extensions
Online Linkage
http://www.esri.com/metadata/esriprof80.html
Profile Name
ESRI Metadata Profile
Download

Featured Collections

New York City Open Data

A collection of datasets related to NYC infrastructure, real estate, transportation, and political geography

NYU Research Data

Geospatial data submitted for preservation by NYU students, faculty, and staff

Vector Map 1 (VMap1) Layers

Highly detailed vector layers depecting terrain, topology, transportation, and civil infrastructure

Latin American Census Geodatabases

ESRI Geodatabases of census data from Latin American countries

Featured Maps

NYU Spatial Data Repository

2015 Aerial Laser and Photogrammetry Survey of Dublin
NYU Spatial Data Repository

100-Meter Resolution Land Cover of the Conterminous United States
NYU Spatial Data Repository

2015 MapPLUTO Brooklyn V. 1