Train Control System: Etcs Level

Discussion in 'Route Suggestions & Proposals' started by BR430, Mar 9, 2021.

  1. BR430

    BR430 Member

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    The European Train Control System (ETCS, German European Train Control System) is a
    Train control system and a fundamental part of the future unified European Railway traffic control system ERTMS. In the long term, ETCS is to manage the more than 20 [1] different train control systems in
    Replace Europe.

    This standardization enables the signaling equipment of the trains in the trains to be greatly simplified
    trans-European networks (TEN) as well as a uniform high security standard of the infrastructure. The
    Track equipment remains under national supervision.

    Practical trials of ETCS have been running since the end of the 1990s and these have been increasing in the 2000 scommercial projects put into operation. [4] Since 2002 is for new trans-European high-speed lines the implementation of ETCS is required by EU law, [5] since 2006 also for upgraded lines.

    The railway networks in Luxembourg have been practically complete since 2017 and the Swiss standard gauge network since 2018 ETCS equipped. In Belgium, Denmark, Israel and the Netherlands, the extensive equipment of the Existing network with ETCS decided. In most European countries as well as in some other countries are in different extent routes and vehicles with ETCS in operation. There have been several routes in Germany since 2015 in operation with ETCS.

    The ETCS infrastructure can also be used as the basis for automated driving operations (ATO).





    How it works:
    In particular, ETCS monitors the maximum permissible speed (taking into account ETCS braking curves), however for example, the suitability of the train for the route and compliance with special operating regulations.

    In order to be allowed to move a train with ETCS, an ETCS driving license (English Movement Authority, MA) is usually required. required. This is usually transmitted via Eurobalises laid in the track or by radio (mostly GSM-R), rarely also by Euroloop. The ETCS onboard unit (OBU) evaluates this data and delivers
    In the event of danger, the train automatically comes to a stop in front of a danger point by emergency braking. Mostly the data also shown to the driver on a display.

    Using 35 national values that can be configured by the infrastructure operator, operational rules and
    Principles can be mapped in ETCS. This results in a different behavior of the from country to country
    Systems.


    The main components of ETCS are:

    > The Eurobalises are punctiform data transmission devices in the track that are passed over by the train
    activated and transmitted like a transponder. There are balises that always have the same fixed dates
    transfer (fixed data balise) and switchable balises for variable information (transparent data balise).

    The core of the ETCS in-vehicle equipment is the European Vital Computer (EVC). Using information from the route will inter alia the driver machine interface (DMI) is calculated.

    The vehicle determines by means of the ETCS odometry on the basis of Eurobalises serving as "milestones" and one Combination of sensors (e.g. wheel pulse generator, Doppler radar) continuously determines its location. The won path, Speed and (braking) acceleration data are further processed in a variety of ways.

    The optional ETCS center (RBC for Radio Block Center) issues driving permits under consideration
    dynamic and static information. While the dynamic data (position and status reports of signals and
    Turnouts) are transmitted by the interlocking, the static route properties are shown in a route atlas
    projected. These include, for example, points, signals, balises, inclinations and speeds.

    The optional Euroloop is a cable-based semi-continuous data transmission system that allows vehicles to operate in ETCS L1 can transmit changes to the signal aspect. For this, in the signal viewing area (often in combination with a balise) a cable line conductor is laid in a loop, often several 100m long, in the track. In contrast to the Eurobalise, the data can not only be transmitted when crossing a point, but across the whole Length of loop.

    If necessary, the data is usually transmitted via one of mostly two installed on the vehicle
    GSM-R modems. With the standardized data encryption according to Euroradio, the ETCS vehicle computer and the ETCS control center is secure from a communications point of view, i.e. protected from data corruption and loss of data with each other
    communicate.




    Initially, a train control system with ETCS level 0 would be desirable
    Upgrade other ETCS Levels 1, ETCS Levels 2, ETCS Levels 3 in the Train Simulator for the coming years. To do this in another new proposal more.

    More information can be found here:

    https://de.wikipedia.org/wiki/European_Train_Control_System#ETCS-Level
     
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