QGIS-rendered Lower Manhattan geospatial asset map

QGIS portfolio / AI data QA

QGIS Portfolio

I built a QGIS asset production package for Lower Manhattan that converts public geospatial sources into normalized, QA-checked, AI-reviewable GIS layers.

7,219

normalized GIS features

10

asset layers

0

invalid geometries after QA

EPSG:2263

NYC working CRS

Project set

QGIS assets first, evaluation toolkit second.

The core proof is the Lower Manhattan QGIS handoff package. The evaluation lab pairs with it for AI reviewer workflows; RPInSight is only supporting evidence of geospatial product work.

Evidence package

Everything a reviewer needs to inspect the work.

The package includes a QGIS project, GeoPackage exports, GeoJSON exports, a data dictionary, QA report, labeling guide, source notes, and AI evaluator task bank.

Technical handoff

Plain asset inventory.

Asset Format Purpose
Lower Manhattan GIS Package.gpkgPrimary multi-layer spatial dataset
QGIS Project.qgzStyled QGIS review workspace
GeoJSON Exports.geojsonWeb/export-friendly layer outputs
QA Report.mdGeometry, CRS, confidence, and review checks
Data Dictionary.mdField schema and allowed values
Labeling Guide.mdHuman review protocol
Source Notes.mdSource, license, and limitation notes
AI Trainer Task Bank.mdGIS/QGIS evaluation prompts

Asset production pipeline

Clean spatial inputs into AI-ready GIS assets.

The project normalizes, clips, validates, flags, reviews, and packages public geospatial data into a compact multi-layer handoff that can be inspected in QGIS or consumed downstream as GeoPackage and GeoJSON.

Input

Public geospatial sources

NYC/NYS building footprints, OSM roads, footways, crossings, POIs, open space, and water context.

Process

Normalize, clip, validate

All features are clipped to the Lower Manhattan ROI and normalized to one review-friendly schema.

Output

Export-ready deliverables

QGIS project, GeoPackage, GeoJSON exports, QA report, labeling guide, and AI trainer task bank.

QGIS desktop proof

The assets open as a real QGIS review workspace.

Screenshots captured directly from the QGIS desktop application on macOS show the layer panel, styled map canvas, project CRS, and attribute table.

QGIS desktop layer panel, styled map canvas, project CRS, and QA metadata
QGIS layer panel, styled map canvas, project CRS, and QA metadata.
QGIS desktop attribute table window
Actual QGIS attribute table window opened from the loaded project.
QGIS-rendered project layers covering Battery Park City and World Trade Center

QA surface

Ambiguity is preserved instead of hidden.

Dense urban GIS data is messy. The portfolio includes `confidence`, `review_status`, `qa_flag`, and a spatial `qa_issues` layer so a reviewer can see exactly where the dataset should be trusted, checked, or treated as approximate.

QA review map for Lower Manhattan geospatial assets
QA review surface with issue points, review features, and source-derived layers.
Attribute schema sample for the QGIS portfolio dataset
Common asset schema used across buildings, roads, crosswalks, POIs, and QA issues.

Schema discipline

Every feature carries provenance and review state.

The core schema is intentionally simple: asset id, type, label, source, source id, confidence, review status, QA flag, notes, and update date. That makes the data legible for AI evaluation workflows, not just map display.

Layer inventory

Built like a handoff package.

GeoPackage layer inventory table

AI trainer readiness

Includes the questions a GIS evaluator would ask.

The GitHub documentation includes a task bank with QGIS-specific prompts and answer keys covering CRS choice, geometry validation, crosswalk ambiguity, topology checks, exports, and AI response review.