VECTOR 3
Data & Credits
VECTOR 3 aggregates publicly available data. Every source in use is listed below with the layers it feeds and its licence. Sources whose licences require attribution are listed first.
Attribution required
These licences oblige us to credit the source. Where we have modified the data, that is stated.
OpenStreetMap contributors ODbL 1.0
Device locations · paths & trails · rail & transit lines and stations · government & law-enforcement buildings · diplomatic facilities · chokepoints. Also the underlying data of the Street and Black basemaps.
© OpenStreetMap contributors — openstreetmap.org/copyright · ODbL 1.0
Share-alike. The Open Database Licence requires that any database derived from OpenStreetMap data be offered under the ODbL as well. Layers built from OSM in VECTOR 3 are derived databases and carry that same licence.
DC OpenData / DCGIS CC BY 4.0
Official District of Columbia cameras — closed-circuit street cameras, automated safety cameras and traffic cameras · embassies · police stations, fire stations and hospitals · military bases.
© the District of Columbia — opendata.dc.gov · CC BY 4.0
Changes made. This data has been modified. DC OpenData records are merged with records from OpenStreetMap and other sources and de-duplicated against them, with the official DC record preferred where the two describe the same feature. Geometry is normalised to point locations and re-tagged into VECTOR 3's own categories.
City of Baltimore, BCIT CC BY 3.0
Official Baltimore camera locations — CitiWatch CCTV, and Baltimore DOT automated enforcement (red-light, fixed and portable speed, commercial vehicle).
© City of Baltimore, BCIT — data.baltimorecity.gov · CC BY 3.0
Changes made. This data has been modified. Baltimore records are merged with records from OpenStreetMap and de-duplicated against them, with the official Baltimore record preferred where the two describe the same camera, and re-tagged into VECTOR 3's own categories.
DC DDOT — TOPS occupancy permits CC BY 4.0
Small-cell installations in the District of Columbia.
© the District of Columbia — DDOT TOPS occupancy permits · CC BY 4.0
Changes made. Permit records are filtered to small-cell installations and reduced to point locations.
CARTO Attribution required
The Street (Voyager) and Black (Dark Matter) vector basemaps.
© OpenStreetMap © CARTO
Esri Attribution required
World Imagery, the base of the Satellite view · delivery of the USGS PAD-US protected-areas tiles behind the Green space layer.
Esri World Imagery and ArcGIS Online services — Esri terms of use
Courtesy credit
Public-domain government works and open data that do not legally require attribution. We credit them anyway.
Federal Communications Commission
Antenna Structure Registration (ASR) — antenna structures and towers. Universal Licensing System (ULS), Cellular 800 MHz — cellular sites.
U.S. Government work — public domain · FCC public access files
U.S. Department of Defense — DISDI / MIRTA
Military installations, ranges and training areas. Boundaries are approximate.
U.S. Government work — public domain · data.gov
U.S. Geological Survey
PAD-US protected areas — the Green space layer. National Digital Trails / The National Map — the Trails layer.
U.S. Government work — public domain · PAD-US · National Digital Trails
PAD-US is public domain, but it is served to the map through Esri's ArcGIS Online, so Esri is credited above as well.
State and local transportation agencies
Traffic cameras and live feeds — VDOT 511 (Virginia) · MDOT CHART (Maryland) · NCDOT DriveNC (North Carolina) · PennDOT 511PA (Pennsylvania) · DelDOT (Delaware).
Public agency feeds
Aerial imagery
The Satellite view layers local orthophotography over Esri World Imagery — DC OCTO 3-inch orthophoto · MD iMAP 6-inch imagery · VGIN VBMP most-recent imagery.
Government works
Local open data
Montgomery County, Maryland — small cells · Philadelphia Parking Authority via OpenDataPhilly — red-light cameras.
Public data
City of Raleigh
City of Raleigh traffic camera locations at signalised intersections.
New York City Department of Transportation
NYC DOT traffic camera locations from the Traffic Management Center public camera feed.
MassDOT
Massachusetts Department of Transportation highway CCTV camera locations (in-service cameras).
ALPR Watch
Suspected automated licence-plate reader locations derived from 811 utility-permit filings.
About this data
VECTOR 3 aggregates public records and open data. Records are matched and de-duplicated across sources, so a single mapped device may draw on more than one of the sources above. Positions are as published by the source and are not independently surveyed; some entries, particularly permit-derived ones, are marked as suspected rather than confirmed.
If you believe a record is wrong, or you hold rights in something credited here and want the attribution corrected, contact STRATCOR LLC.
Built with Leaflet · MapLibre GL JS (BSD-3-Clause) · esri-leaflet (Apache-2.0).