in 2006 During late-1980s and early-1990s negotiations with the
European Economic Community (the predecessor of the
EU), Switzerland demanded a limitation on transalpine truck traffic. When the EEC refused, Swiss negotiators instead proposed a heavy-vehicle fee (HVF), a kilometre-based tax on freight vehicles, for all lorries above 3.5
tonnes and offered to build a high-speed rail link through the Alps for
intermodal freight transport. Swiss voters approved the rail link in a 27 September 1992
mandatory referendum. The EU accepted the Swiss offer in 2000, but requested that the extant 28-tonne weight limit for
lorries be raised to 48 tonnes. The parties eventually compromised on a 40-tonne weight limit. The bilateral Land Transport Agreement with the European Union was signed, agreeing to an increase of the kilometer-based tax (HVF; , , ) on
HGVs from 1.6 ct/tkm to 1.8 ct/tkm when the NRLA was completed. The condition was deemed fulfilled at the completion of the first track of the
Lötschberg Base Tunnel in 2007. Other relevant Swiss legislation includes the 1994
Alps initiative, which prohibits road-building in the Alps and encourages the transport of as many transalpine goods as possible by rail rather than road, and the 1998 Traffic Transfer Act, which sets an ideal maximum number of trucks crossing the Alps by road. Meeting this goal requires a fully functional NRLA rail link. The original plans for the NRLA were to construct only one main base tunnel, but regional disputes prevented a choice between the two options and threatened to jeopardize the entire project. The
Swiss Federal Council therefore decided in 1995 to build two base tunnels (Gotthard and Lötschberg) simultaneously. In 1998, the total projected cost of the NRLA project was CHF 12.189 billion; in December 2015, the final cost was projected to be CHF 17.900 billion. The projected cost of its centerpiece, the Gotthard Base Tunnel, was CHF 6.323 billion in 1998; in December 2015, the tunnel's cost was an estimated CHF 9.560 billion. The 1998 cost of the Lötschberg axis was an estimated CHF 3.214 billion; in December 2015, it was an estimated CHF 4.237 billion. The fund is replenished primarily by the previously mentioned kilometre-based tax on heavy-goods vehicles (HVF) and partially by taxes on
gasoline originally intended for road-building, a small fraction of the
VAT revenues, and funds from the general budget of the Swiss Confederation. The bilateral agreements with the EU containing the 40-tonne limit and the implementation of the HVF were finally accepted by the Swiss populace on 21 May 2000 with 67.2% support in a federal
optional referendum initiated by opposing political parties. == Gotthard axis ==