It's pure eletronic (no steampunk thing like in SF ;) ) - a button on handles, all over the bus, with obvious ones next to a door. e.g.- https://www.shuttersto

It's pure eletronic (no steampunk thing like in SF ;) ) - a button on handles, all over the bus, with obvious ones next to a door. e.g.- https://www.shutterstock.com/search/bus-stop-button https://www.shutterstock.com/search/bus-stop-button