intersections, with dedicated bus lanes and 'B'-light bus-only phases at many traffic lights. The Adelaide Metro buses are operated by: Torrens Transit – East-West (includes City Free), Outer North East and Outer North contract areas Torrens Connect – North-South contract area, including the 300 suburban connector and O-Bahn services and the light rail SouthLink – Hills contract area Busways – Outer South contract area The O-Bahn Busway is one of a few guided busways in the world. With large growth in the North-eastern Suburbs of Adelaide in the 1970s and 1980s, when Adelaide was faced with a transport dilemma. The Adelaide O-Bahn was constructed in 1986 in response, after beating competing proposals of expanded rail and road networks. (One of the competing proposals was to build an Adelaide underground transport system, but proved to be cost-ineffective in comparison). Interstate bus routes to and from all the major Australian towns and cities connect to Adelaide. The main terminus for intra and interstate coach-liners is the Adelaide Central bus station on the corner of Franklin and Bowen Streets in the city-centre. Beginning in 2005, the terminal is to undergo a complete $25 million reconstruction, in conjunction with the much larger $375 million former Balfours site redevelopment – the end-product being a new multistorey bus station and various residential and commercial towers. The Tindo ("Tindo", Kaurna word for sun) solar bus is an experimental battery electric vehicle that operates in Adelaide. It uses 100% solar power, is equipped with a regenerative braking system and air conditioning and can carry up to 40 persons, 25 of whom are seated. Hailed as the world's first bus service powered exclusively by solar power, the bus service connects Adelaide City and North Adelaide as part of Adelaide City's sustainable transport agenda. The Tindo is part of Adelaide's Free bus services, operated under the call signs, 98A and 98C (until very recently known as the Adelaide Connector bus service). Other Free services in Adelaide include the City Loop, operating under callsigns 99C and 99A, formerly known as 99C only. The 99B, the Beeline, was another free service which ran until 2007, when the Glenelg tram line extension was finally inaugurated. 97A and 97C are new services which started when the new Royal Adelaide Hospital opened. It connects the old one with the new one. Its route includes North Terrace, Currie and Grenfell Streets. The service has now ceased,