A car is cut in half and mounted on a bridge. When the bridge closes, the two halves of the car meet, forming a complete car. As the car joins its alarm activates.
The Socratic dialogue Symposium describes the ancient story of human double creatures with four arms, two heads and four legs. These creatures moved in a ball formation. A jealous Zeus split these creatures in two creating the modern human, which is always searching for its other half. In this work, one half of the car is always searching for the other and is estatic when re-united.
Symposium references the priorities of the traffic flow, a car takes priority over people, trains take priority over cars and boats take priority over all other modes of transport.