How much of Dhaka is within 15 minutes of an emergency department?

Each square is 300 m. Travel by car with approximated traffic (Geoapify Isoline API), from hospitals whose 24-hour emergency department is confirmed or expected. Method and caveats.

Hospitals–

Area within 10 min–

Area within 15 min–

within 10 min 10–15 min more than 15 min hospital