No-account synthetic demo

Data Sources

Public references, OpenStreetMap attribution, and synthetic planning-data boundaries
Operating boundaryno sensitive data

Public transmission lines and public substations are reference layers only.

Transmission structures, OPGW, splices, patch panels, circuits, and fiber assignments are synthetic demo/planning records unless later replaced by user-verified engineering records.

The app does not claim assumed OPGW, private fiber, relay channels, SEL ICON services, SCADA paths, protection paths, leased circuits, or operational telecom routes exist.

Do not enter real CEII, SCADA, relay, protection, telecom, credential, operational-access, or private fiber-route data.

HIFLD Electric Power Transmission Lines
Public reference
Source

Public transmission-line geometry used as ISO New England map reference context.

Imported from a public ArcGIS FeatureServer, converted to WGS84 GeoJSON, clipped to CT, MA, RI, NH, VT, and ME, and rendered read-only. Transmission owner buckets use the public HIFLD OWNER field when present, then close OpenStreetMap power-line owner/operator tag matches with compatible voltage, then explicit utility owner tokens in public line names; otherwise records remain Unknown public owner. The app does not infer private telecom routes from these lines.
Source ID
hifld-transmission-lines
Dataset type
Public reference dataset
Last reviewed
2026-06-07
Notes
Used only for public reference visualization. Does not imply real OPGW, telecom circuits, SCADA paths, relay/protection channels, or private utility fiber assets.
frontend/public/data/iso-ne-public-transmission-lines.geojsonfrontend/public/data/iso-ne-public-transmission-lines.meta.json
HIFLD Electric Substations
Public reference
Source

Public substation reference points used only when owner/operator can be verified from public source data.

Imported from a public ArcGIS FeatureServer. Unknown-owner records and nearest-line-only inferred owner records are excluded from the displayed substation layer.
Source ID
hifld-substations
Dataset type
Public reference dataset
Last reviewed
2026-06-07
Notes
Shown as verified public-source owner references only, not as private telecom or operational utility inventory.
frontend/public/data/iso-ne-public-substations.geojsonfrontend/public/data/iso-ne-public-substations.meta.json
OpenStreetMap via Overpass API
Public enrichment
Source

Public power=line and power=substation owner/operator tags used for public owner-bucket enrichment.

For transmission lines, only close spatial matches with compatible voltage are used. For substations, only close spatial matches within the configured match tolerance are used. OpenStreetMap data is attributed to OpenStreetMap contributors and is subject to the Open Database License.
Source ID
openstreetmap-overpass
Dataset type
Public enrichment dataset
Last reviewed
2026-06-07
Notes
Used as public-source enrichment only; it does not establish real internal fiber, protection, SCADA, or telecom topology.
FCC ULS Microwave Public Access Files
Public reference
Source

Public utility-licensee microwave tower/site nodes and point-to-point path references inside the ISO New England map bounds.

Generated from FCC ULS public access tables. The dashboard exposes tower/site nodes and microwave path links as separate read-only public-reference layers. The microwave link layer includes path-frequency grouping from FCC assigned-frequency fields. The app includes only active microwave records whose public licensee name matches a utility-owner pattern and whose public FCC coordinates fall inside CT, MA, RI, NH, VT, or ME. Path links and parameters are FCC public license fields only, including call sign, path number, site/location number, frequency, EIRP, ASR number when present, structure height, and license dates. Records are not operational telecom inventory.
Source ID
fcc-microwave
Dataset type
Public reference dataset
Last reviewed
2026-06-07
Notes
Public communications reference information used for demo visualization only. Does not represent private operational telecom design.
frontend/public/data/fcc-uls-utility-towers.geojsonfrontend/public/data/fcc-uls-utility-microwave-links.geojsonfrontend/public/data/fcc-uls-utility-microwave.meta.json
CARTO basemap tiles
Basemap
Source

Visual background map tiles for MapLibre.

Used as a basemap only. CARTO/OpenStreetMap attribution remains visible in the map control; planning overlays are stored separately.
Source ID
carto-basemap
Dataset type
Public geographic basemap
Last reviewed
2026-06-07
Notes
Geographic context only; not an engineering or operational source of asset truth.
Deterministic synthetic generators
Synthetic demo

Demo-only transmission structures, OPGW cables, splice closures, fiber strands, splices, patch panels, and assignments.

Generated by local scripts with fixed seeds. These records do not represent real utility assets and must not be used for operations, switching, dispatch, restoration, SCADA, protection, telecom routing, or CEII-restricted analysis.
Source ID
synthetic-gridassetlink-demo
Dataset type
Synthetic demo data
Last reviewed
2026-06-07
Notes
Non-authoritative synthetic data for software demonstration only.
frontend/scripts/generate-transmission-structures.tsfrontend/scripts/generate-synthetic-opgw.tsfrontend/scripts/generate-splice-closures.tsfrontend/scripts/generate-fiber-assignments.ts