Railway maintenance is defined as the process of preserving a working condition of a railway equipment, along the track or related to rolling stocks, but there are actually different approach to mantain a railway asset or service..
With CBTC, moving blocks introduce to the concept of contiguous track, because the railway is represented as a single contiguous block, rather than a set of adjacent blocks. This means that the safe separation behind the preceding train is dynamically calculated based on the maximum operating speeds, braking curves and locations of the trains on the alignment. Also, in this way the capacity of the railway is extremely increased.
Strict safety requirements regulate the development of railway signalling and train control systems, covered by the CENELEC (European Committee for Electro-technical Standardization) EN 5012x rail standards
This paper will drive you across the different phases of the V-cycle for railway application, by explaining the key role of requirements during each phase and presenting the Systems Engineering activities required to support and control product development.
Track circuits contributes for train detection but also for the vehicle’s speed control, since the electrical signals used for train detection can be exchanged between wayside and on-board for the transmission of speed commands.
Since the train can be considered the transport mode of the future, national railway companies and European Union are currently working for a continuos upgrade of sustainable rail transportation, in order to guarantee the best quality of life to European citizens.
Railway signalling can be defined as all systems used to control railway traffic safely, essentially to prevent trains from colliding. Over the years knoledgment and technology able to satisfy this issue have been implemented. ERTMS/ETCS is currently the most common signalling system adopted in Europe.
The Citadis compact trams are specially designed to provide services on secondary lines and medium-sized networks. They also feature air-conditioning, real-time information system, a wide circulation corridor and double-doors at the front and at the back.
The main European cities are seeking quick costructions for light metro system, easy urban insertion and improved life-cycle costs. Among the most important rail suppliers, Alstom has launched the Axonis light metro system to meet these specific transport needs in fast-growing and densely-populated cities.
There is no a true Denmark high speed railway line, partly due to the topography and partly because of population density; in the same time trading with the rest of Europe is increasingly important and the classic lines that carry this traffic are congested.
Among thousands mobile application available on our smartphones, the ones related to transportation's are in the first positions regarding number of users. Following this trend, the US railway company AMTRAK acts an online marketing strategy, just focusing on the mobile devices.