, like other railway companies, experienced a profit slump during the years of the "railway crisis". The
Western Switzerland–Simplon Railways (
Suisse-Occidentale–Simplon; SOS) was created on 26 June 1881 as a result of the purchase of the
Simplon Company (
Ligne du Simplon; S) by the Western Switzerland at a price of around CFF 13.2 million. Since the Simplon Company was financially too weak to promote the construction of a
Simplon tunnel, the canton of Vaud in particular pushed for a merger of the two railways. The SOS, with investment capital of CHF 248 million and a network length of 581 kilometres, was the largest railway company in Switzerland at the time. The
Geneva–Lausanne–Brig routes and the extensions from Lausanne
via Romont to Bern and via
Yverdon and Neuchâtel to La Neuveville formed its main route network. Its strategically most important goal was the building of a connection from
Brig to
Domodossola by
tunnelling under the Simplon Pass, but this did not proceed for the time being. The SOS invested around CFF 670,000 in preparatory work in 1886 alone. The SOS commissioned the
Saint-Gingolph–Saint-Maurice railway, the Swiss section of the railway along the south shore of
Lake Geneva on 1 June 1886. The
Savoy section from Saint-Gingolph to
Évian-les-Bains belonged to the Paris-Lyon-Mediterranean Railway (
Chemins de fer de Paris à Lyon et à la Méditerranée; PLM). On 21 January 1888, large masses of rock disintegrated at
Cheyres and fell on the track creating piles of rubble two or three metres high. A Payerne–Yverdon passenger train loaded with about 40 passengers ran into the rubble, causing the two locomotives to derail. The fireman of the
bank engine was killed, while the other fireman and the driver of the bank engine were seriously injured. The Western Switzerland Railway and the SOS operated other railway lines: •
Jougne–Vallorbe–Pontarlier and
Verrières–Pontarlier line of the French
Compagnie des chemins de fer de Paris à Lyon et à la Méditerranée (PLM) •
Bulle–Romont railway (
Chemin de fer Bulle-Romont, BR) •
Pont–Vallorbe Railway (
Chemin de fer Pont–Vallorbe, PV) •
Travers–Buttes railway (
Régional du Val-de-Travers, RVT) •
Simplon Company (
Compagnie du Simplon, S) The operating results of Western Switzerland–Simplon Railways were always positive. Freight and passenger traffic contributed approximately equally to this. The SOS was able to distribute a modest dividend every year.
Network of the Western Switzerland–Simplon (SOS) The following map shows the Western Switzerland–Simplon route network before the merger with the
Jura–Bern–Lucerne (JBL): == Merger of the Jura-Simplon Railway ==