Transportation in Israel is based mainly on private motor vehicles and bus service and an expanding railway network. A lack of inland waterways and the small size of the country make air and water transport of only minor importance in domestic transportation, but they are vitally important for Israel's international transport links. Demands of population growth, political factors, the Israel Defense Forces, tourism and increased traffic set the pace for all sectors, being a major driver in the mobility transition towards railways and public transit while moving away from motorized road transport. All facets of transportation in Israel are under the supervision of the Ministry of Transport and Road Safety. Private transportation Roads Israel's road network spans of roads, of which are classified as freeways. The network spans the whole country. Route 6, the Trans Israel Highway, starts just east of Haifa down to the outskirts of Beer Sheva, about . Route 1 between Jerusalem and Tel Aviv and Route 2 between Tel Aviv and Haifa are well maintained highways. Cycling Tel Aviv has a growing network of bike paths, with more than over 360 kilometers (224 miles) existing or planned. In April 2011, Tel Aviv municipality launched Tel-O-Fun, a bicycle sharing system, in which 150 stations of bicycles for rent were installed within the city limits. Jerusalem has over 125 kilometers (78 miles) of cycleways, either existing or planned. National Bike Trail The National Bike Trail, when completed will take riders from the southern city of Eilat to the border with Lebanon, passing though Jerusalem, Tel Aviv and several other cities. Ofnidan (Greater Tel Aviv Cycle Network) As of 2021, construction was underway on Ofnidan, a cycle network of seven inter-urban routes connecting the cities of the Tel Aviv Metropolitan Area, with some segments already open. Public transportation Bus service Buses are the country's main form of public transport. In 2017, bus passenger trips totaled approximately 740 million. In 2009, 16 companies operated buses for public transport, totaling 5,939 buses and 8,470 drivers. Egged is Israel's largest bus company, and operates routes throughout the country. Bus routes in some areas are operated by smaller carriers, the largest being the Dan Bus Company, operating routes in Gush Dan. Kavim is the next largest. Bus stations in Israel, other than standalone bus stops, come in two types: terminals (masof, pl. mesofim) and central stations (tahana merkazit). Each terminal serves a number