The part of Avenue Louise between Louise and Stephanie squares is called in French ("the Louise bottleneck"). With two tramway lines and thousands of cars sharing this narrow segment of the avenue, large traffic jams occur there during rush hours. The problem was already obvious in the early 1980s, so a tram tunnel under the bottleneck was built along with the metro station on Louise Square. However, construction was abandoned toward its end due to protests of local businesses fearing losses if patrons were to be diverted through a tunnel.