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Tram-train Mulhouse – Thann celebrates its 10th anniversary

Everyday life in Mulhouse/ Mulhouse for 10 years: Siemens Avanto dual-system light rail (left) and AlstoM Citadis low-floor tram (right) in the city centre I Wikipedia/ Licence CC BY-SA 4.0/ Florian Fèvre

The example of the French Mulhouse – Thann tram-train system shows that an attractive public transport service can also be successful in less densely populated areas. The line starts as a tramway on the station forecourt in Mulhouse and serves the 10 stations of the city centre over 7 km in 20 minutes together with tram line 3 that ends in Lutterbach. It then joins the single-track railway line branching off from the main line Mulhouse – Strasbourg to Thann and Kruth.

An Alstom Citadis tram meets a Siemens Avanto tram-train in Mulhouse city centre I © Reinhard Christeller

The tram-train connects Mulhouse (approx. 110,000 inhabitants) from Lutterbach in 26 minutes over another 16 km with 7 stations via Cernay (11,000 inhabitants) with Thann (8,000 inhabitants). On weekdays, it runs continuously every half hour with a journey time of 46 minutes. At peak times, hourly TER regional trains run in 32 minutes from Mulhouse station to Thann and then a further 18 km on to Kruth (1,000 inhabitants). At off-peak times, Thann is connected to Kruth by bus. The advantages of direct public transport outweigh those of the theoretically shorter journey time of 29 minutes by car. For comparison, it should be mentioned that the first German tram-train line connects Karlsruhe (307 000 inhabitants) with Bretten (30 000 inhabitants).

Route map of the 3 Mulhouse tram lines and the tram-train I © Nuÿ / Wikipedia / Public domain

While the usage of the existing TER trains Mulhouse – Kruth has remained practically unchanged, with around 1,800 daily users, the approximately 5,300 additional passengers on the Mulhouse – Thann section have quadrupled the usage of public transport. Economic and other activities are developing around the line, which has led to the demand for a new stop in the industrial area of Cernay. Thanks to the tram-train, there was no need to extend the parallel main road for car traffic.

Avanto tram-train from Siemens I © Reinhard Christeller

The single-track line with trains of the two operators Soléa and SNCF, is especially sensitive to delays and breakdowns, compromising punctuality and reliability. The original coordination problems are said to have been solved in the meantime. However, passengers stillbcomplain about punctuality and often very long transfer times between the tram-train and the onward trains from Thann to Kruth. Residents of Kruth note that they are worse served than before the introduction of the tram-train.

The system changeover point from tram with 750 V DC and travel on sight to rail with 25 kV 50 Hz and BAPR/Crocodile signalling I © Reinhard Christeller

The city line in Mulhouse is equipped with 750V direct current and the priority road crossing system for trams common in France, while the common line up to Thann, where electrification ends is fed with 25 kV 50 Hz. From Lutterbach to Kruth, modern signalling type BAPR (block automatique à permissivité restreinte, automatic block with restricted permission) is used with a computer station (PIPC) installed in Thann, with the old “Crocodile” system also installed.

The tram-train stops at platform level and with gap bridging at the stops I © Reinhard Christeller

The three lines of the Mulhouse municipal tramway are operated by Alstom Citadis 302 vehicles of 32 m length and 64 seats. The TER trains of the SNCF are 29 m long single-section low-floor De Dietrich/Alstom diesel railcars with 550 mm entrance height of type X73500 with 61 seats and 17 folding seats, while the 12 vehicles of the tram-train are Siemens Avanto S70 trains, such as also used by SNCF as U25500 on the Paris line T4, as well as in the USA.

Just before Lutterbach station, where the SNCF line to Kruth branches off from the main line to Strasbourg and joins the tram-train line, a tram-train train meets an SNCF long-distance train I © Reinhard Christeller

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24.02.2021
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