You were probably unaware and did not feel the need to check the "Traffic" option in Google Maps. However, the option is now fully-functioning in Bangladesh.
Google Traffic is a feature on Google Maps that displays real time traffic status of major roads and highways. Users can find it in the drop-down menu on Google Maps.
With the help of this feature, one can understand the traffic conditions in the different routes. The roads on the map change colour depending on the movement of vehicles.
Green indicates no traffic; orange, medium traffic; red, traffic delays; and dark red, traffic gridlock.
To run this feature Google uses crowd sourced data. Hand-held devices which have Google Maps active and Android phones that have location service turned on can send data back to Google.
This allows the app to analyse the total number of cars, and how fast they are moving along the roads at any given time, reports Business Insider.