The SBB RABDe 500, also known as the ICN, is a Swiss high speed passenger train which was introduced in 2000, in time for Expo.02 held in western Switzerland in 2002. Its maximum speed is , and it employs tilting technology, which allows it to travel through curvy routes faster than non-tilting trains. The train sets were a joint development by Bombardier, Swiss Federal Railways and Alstom, with an aerodynamic body designed by Pininfarina, bogies and tilting mechanism designed by the then SIG, Schweizerische Industrie Gesellschaft. Forty-four RABDe 500 trains with a total of 308 coaches were delivered to SBB-CFF-FFS between 1999 and 2005. The RABDe 500 often run with two complete compositions, each with seven carriages, both including a dining car. The outer four of the seven carriages are second class. History Swiss Federal Railways ordered an initial 24 7-car trainsets in 1996 at a cost of The contract went to a consortium including Adtranz, , and Fiat-SIG. Pininfarina designed the vehicle body. The trains were intended for use on the Jura Foot Line; adopting tilting technology allowed SBB to defer track upgrades over the route. The first trainsets entered service on the 28 May 2000 timetable change, running from St. Gallen via Winterthur, Zürich and Biel/Bienne to Lausanne. All 24 trainsets were in service by the opening of the Expo.02 national exposition in May 2002. The trains all carried the slogan "enable the future" (). SBB ordered another 10 trainsets, with an option for 10 more, in June 2001. SBB exercised the option that December, for a total of 20 additional transets at . Delivery was complete by 2005. Formerly, SBB designated intercity services operated by the SBB RABDe 500 as "ICN", differentiating them from other InterCity (IC) and InterRegio (IR) services. This practice ceased with the December 2017 timetable changes, in which all IC and IR services gained numbers and the ICN category was eliminated. RABDe 500-operated services are indicated on timetables and mobile applications by the "" label. All 44 trainsets were refurbished between 2012 and 2019, an overhaul taking 25 days per train. Another overhaul, taking place between 2021 and 2029, will replace the interiors and improve mobile phone reception. the RABDe 500 is primarily used on two InterCity routes: the IC 5, running from to or from to Zürich HB; and the IC 51, running from to . Design Each formation is composed of