Question 1

How can I compare street maps, satellite imagery, and terrain contours at the same time?

Accepted Answer

Use Mode A (4-Layer Sync) in Quad Map Explorer to enter any global address or coordinate and simultaneously view OpenStreetMap streets, high-resolution satellite orthophotos, SRTM topographic contours, and arterial traffic heatmaps across 4 synchronized viewports.

Question 2

How can I compare the true physical size of different cities at the same map scale?

Accepted Answer

Switch to Mode B (4-City Same-Scale Comparison) and enable True Scale Lock. Quad Map Explorer automatically compensates for Web Mercator latitude distortion and overlays geodesic radius circles (e.g., 500m, 1km, 2km, 5km) so you can compare urban blocks and walkability across 4 cities.

Question 3

Does Quad Map Explorer collect personal data or use tracking cookies (EU GDPR)?

Accepted Answer

No. Quad Map Explorer is 100% EU GDPR and ePrivacy compliant with a strict Zero Data Collection architecture. It uses no tracking cookies, no advertising pixels, and does not log searches or personal data. Bookmarks and language preferences are stored exclusively in your local browser storage.