OpenTrafficMap is an interactive map for viewing and exploring live traffic-related data. Its interface displays moving road users and infrastructure, including cars, trucks, trams, buses, motorcycles, cyclists, pedestrians, special vehicles, trailers, and traffic lights. Users can filter objects by type, age, and timeout, and inspect connected nodes, public 24-hour activity heatmaps, and receiving stations.

Map options include clustering, GeoJSON markers, server-side filtering, tiled views, and several visual styles, such as day, night, monochrome, and 3D. Search tools support queries for transit and vehicle details, including route or line information, destinations, vehicle numbers, and MAC addresses. Users can also filter nodes by whether they have data, photos, or signatures.

For traffic-light analysis, the map provides signal-group details and lane or connection debugging information. OpenTrafficMap offers data access features such as JSON downloads and PCAP capture downloads, alongside privacy information, an imprint, a wiki, and login controls. Its interface is available in German and English, making it a practical mapping and monitoring resource for examining traffic activity and associated data