Place it at the moment the card meets the validator in your edit, then follow it with a door-closing sound as passengers settle and a low engine sound as the bus pulls away, keeping it as the clear cue that the journey has started.
About this sound
This is a short electronic beep from an Ankara EGO validator when a monthly subscription card is tapped, lasting just over two seconds. It feels familiar and satisfying to regular commuters, like a small confirmation that the journey can begin. The clip comes from Ankara's public transport system, where the card covers 500 rides for 350 TL in 2025.