Why does my Audi A2's fuel consumption increase after driving in heavy traffic?

I've noticed that my Audi A2 consumes more fuel after being stuck in heavy traffic. Is there a scientific explanation for this phenomenon or is it simply a result of driving habits?

When driving in heavy traffic, your Audi A2's fuel consumption increases due to constant stopping and starting, which requires the engine to work harder and use more fuel. It is important to maintain a steady speed and avoid excessive braking in order to minimize fuel consumption.

In heavy traffic, idling and frequent acceleration consume more fuel. To reduce your Audi A2's fuel consumption, try to anticipate traffic flow and maintain a safe following distance to avoid sudden acceleration or braking.