Chemin de fer Aigle-Sepey-Diablerets

Railways came to the Chablais area of Vaud and Valais in 1857 when the Lausanne - Simplon railway opened its line through Aigle. This was to act as the catalyst for other projects in the late 19th century which were designed to link the valley floor with communities in the mountains.

Aigle's railway station is still served by the trains of the Swiss Federal Railways but also those of three, local, narrow-gauge railways: the Aigle-Ollon-Monthey-Champéry, the Aigle - Leysin and the Aigle - Le Sepey - Les Diablerets.

On 24th October 1898 both Houses of the Swiss Parliament approved a concession application by the ASD to build and operate a railway between Aigle, Le Sépey and Leysin. Nine months later both Houses of the Swiss Parliament awarded a concession for a railway, not only linking Aigle, Le Sépey and Leysin but beyond, to Les Diablerets, Pillon and Saanen. However, following a new series of projects and concession applications, on 23rd May 1905 the Berne Government finally approved the construction of a line between Aigle, Le Sépey and Les Diablerets on the left bank of the Grande Eau. The Federal Council accepted the railway's articles of incorporation on 28th February 1911.

On 6th July 1914 the last section of the line to Vers l'Eglise and Les Diablerets was completed and the following day Berne issued a permit to operate the entire line between Aigle and Les Diablerets.

The ASD put forward many railway projects in the early 20th century: a link with Gstaad via the Col du Pillon, connections with Chesières and Villars forming part of a grand "Boulevard des Alpes" linking Interlaken with Chamonix. Another project, like the previous examples, which met with fierce opposition, involved a link between Gryon and Les Diablerets.

The line is built to RailGauge|1 gauge and has a length of 22.33 km with power, at 1500v d.c., supplied by the Société des Forces Motrices de la Grande Eau from its plant at Pont de la Tine. Its lowest elevation is at the station at Aigle, 404m.(1252ft.) above sea level, rising to 1,157m (3586.7 ft.) at Les Diablerets Station, a total climb of 753m.

The night of 26th June 1940 was probably the worst in the history of the ASD when a fire destroyed its depot. Not only were the railway's facilities destroyed but three electric railcars and 4 passenger cars were lost. Following the tragedy there was speculation that the railway might be abandoned. However, a decision was made to save and restore as much as possible and, in addition, ASD was able to lease rolling stock from other companies in order to ensure the continuation of the service.

At the same time, a Westinghouse system replaced the existing braking equipment so enabling the rolling stock to travel the AOMC line.

In 1975 the four local railway companies, Aigle - Leysin (AL); Aigle - Ollon - Monthey - Champéry (AOMC); Aigle - Sépey - Diablerets (ASD) and Bex - Villars - Bretaye (BVB) merged to form a single operating company, known as the Transports Publics du Chablais (TPC). This brought about increased co-operation between the companies in the provision of community based services. In 1985, the Federal Government informed ASD, and other privately operated railways, that it would cease all funding the following year, however they renewed a federal concession for a further period of 50 years. An agreement was signed between the Canton of Vaud, the communities served by the railway and the ASD and its partners to renew rolling stock and upgrade the track.

In the mid 1990's, faced with greatly increased operating costs, the Canton of Vaud and the communities served by the railway petitioned the Federal Government to revoke its 1985 decision. The Federal Government did so and in 1996, recognizing the importance of this regional line as a public transportation carrier, awarded the line with a contract to provide a public transportation service. This brought about, in 1999, the founding of Transports Publics du Chablais as the parent body of local public transportation with the four local railway companies as founding members.

Railcars and Rolling Stock.

The line is usually operated by a class of four BDe4/4 railcars built by Ateliers de Constructions Mecaniques de Vevey, with electrical equipment by Brown Boverie & Cie. These are usually coupled to Voiture Pilote (Driving Trailers) of classes "Bt" or "Arst". The company also has two of the original railcars which survived the 'Great Fire', these are class BDe4/4 and were built by SWS / BBC. Numbered 1 & 2 they are painted in an 'alpine scene livery' and coaches of classes "B2"/"B2r", "Ars" and "By".