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Maintenance - Articles and news items

Using big data for railway operations and maintenance

Railway Extra, Z Homepage promo / 14 June 2017 /

In their article, to be published next month in European Railway Review Issue 4 2017, Professors Diego Galar, Uday Kumar and Ramin Karim from Luleå University of Technology, Sweden, elucidate the possibilities of big data in the railway industry and anticipate its positive effects on operations and maintenance (O&M) from a systems perspective.

The 27th International Exhibition for Track Technology (iaf) from 30th May to 1st June 2017

Rail industry news / 21 February 2017 /

In just three months the 27th iaf in the German city of Münster will open its doors.

CAF to supply maintenance locomotives for RATP operated regional railway

Rail industry news / 6 February 2017 /

Rolling stock manufacturer CAF has won a contract to supply maintenance locomotives to RATP for service on its regional railway network in the Paris metropolitan area.

Transport secretary unveils rail reform plans for joined-up approach to track & train

Rail industry news / 6 December 2016 /

Under rail reform plans proposed by Transport Minister Chris Grayling, rail operators in England will be required to manage services and track infrastructure through close partnership with Network Rail.

Brochure: Achieving efficient planning in rail infrastructure management

Whitepapers, Z Homepage promo / 1 November 2016 /

This brochure provides vital information on how you can remain competitive, supporting demand creation, demand management and supply management…

Innovative engineering saves money on Liverpool railway tunnel upgrade

Rail industry news / 12 October 2016 /

A cost effective rail engineering technique is being used to upgrade a Victorian railway tunnel leading to Liverpool Central station.

Construction begins on new rail technology centre in North West England

Rail industry news / 10 October 2016 /

Alstom has begun construction work on its new rail technology centre and training academy in Widnes, North West England.

Bombardier to provide fleet maintenance for California’s Metrolink

Rail industry news / 3 October 2016 /

Southern California Regional Rail Authority (SCRRA) has awarded an eight-year maintenance service contract for the Metrolink commuter rail fleet to Bombardier Transportation.

Virtual reality glasses trial to improve maintenance of Boston commuter rail system

Rail industry news / 16 September 2016 /

In a new trial, Keolis has issued its technicians with virtual reality glasses enabling quick and efficient maintenance of the Boston, Mass. commuter rail system.

Bombardier confirms Lower Saxony rail vehicle maintenance contract

Rail industry news / 26 August 2016 /

Bombardier Transportation has signed a contract with regional rail authority Landesnahverkehrsgesellschaft Niedersachsen mbH (LNVG) to provide rail vehicle maintenance and service.

Deutsche Bahn expands cooperation with China

Rail industry news / 13 June 2016 /

Deutsche Bahn has signed two memoranda of understanding with China extending its cooperation and presence within the Chinese rail market.

Construction, maintenance and upgrading of tracks: the Austrian way

Issue 4 2013 / 1 August 2013 /

The liberalisation of European railways, particularly the free network access of passenger and freight traffic, have a basic influence on the construction of new lines and the maintenance and upgrading of tracks of ÖBBInfrastruktur AG. This article outlines the essential characteristics of track systems including track substructure.
Line layout and cross sections

Operating trains on a line that allows high speeds for passenger trains and low speeds for freight trains requires careful consideration about track alignment design. The maximum allowable values of cant deficiency (Imax = 130mm) and a max. cant excess (Emax = 110mm) enables expectable rail wear and reduced maintenance costs. A maximum gradient of 12.5‰ guarantees a load of 1,000 tonnes per freight train. A minimum radius of 3,000m enables a comfortable train speed of 200km/h, but 250km/h for trains with low axle loads is also possible.

The invention of the ‘Viennese Curve’ – a transition curve calculated for the centre of gravity of a vehicle – reduces lateral track forces and rail wear. In addition, this transition curve guarantees a full compensation of the rate of change of the lateral acceleration at the points of discontinuity – as a result, new and better passenger comfort will occur.

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