In 1995, the municipal bus company Bergen Sporvei made a proposal to establish what they called the Lightning Tram, from Varden in Fyllingsdalen via a tunnel to Møhlenpris and the city center, then make a 120° turn and return along the route of the Bergen trolleybus to Birkelundstoppen. The same year, the Norwegian Society for the Conservation of Nature proposed a more extensive system, the Environmental Tram, which more closely resembles the current proposals. From the city center, it would run northwards via Åsane to Flaktveit and southwards via Rådal to the airport (not via Nesttun). The southern section would have branches from Hop to Nesttun and Midttun, and from Minde westwards to Fyllingsdalen and Loddefjord. Later, Bergen Sporvei's successor, Gaia Trafikk, proposed building a bus rapid transit.