The Bandra-Worli Sea Link bridge, along with Mahim Causeway, links the island city to the western suburbs.[87] The three major road arteries of the city are the Eastern Express Highway from Sion to Thane, the Sion Panvel Expressway from Sion to Panvel and the Western Express Highway from Bandra to Bhayander.[88] Mumbai has approximately 1,900 km (1,181 mi) of roads.[89] There are five tolled entry points to the city by road.[90]