Put this clip just before the visual update in your edit, then follow a successful change with a bell ding and save an error cue for when the plan goes wrong in the next scene.
このサウンドについて
This is a short electronic info chime lasting about 1.7 seconds, the kind of clean alert tone used for system information in an ETCS cab. It feels calm and official rather than alarming, giving a small moment of focused attention like a status update has just appeared for the driver.