An interactive map of New York City boroughs visualizes traffic crash data, representing the locations of injured and killed cyclists, pedestrians, and motorists as colored points. Users can zoom towards the cursor with the mouse wheel and pan by dragging, while toggling the visibility of six incident categories via a legend. Built with React, the map is rendered as SVG using D3’s `geoMercator` and `geoPath` for the geographical projections. Crash statistics are loaded from a CSV file, and the incident coordinates are read from separate CSV files per borough.