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【学术讲座】Interoperability issues in high speed lines

2014年05月15日 11:30 点击数:

讲座安排:

讲座时间:2014518日(周日)15:30-17:30

讲座地点:九里网络学院4楼学术厅

讲座主题:Interoperability

issues in high speed lines: an operating rule point of view

主讲人:Simon Collart-Dutilleul,

IFSTTAR-ESTAS

French Institute of transport

technologies Planning and Networks,

Components and Systems Department (COSYS), Laboratory of evaluation of

automated transport and their safety (ESTAS)

主讲人简介:

Research Director (equivalent to full professor) in Ifsttar/Estas (Safety

Team), head of the ERTMS Task, Head of the software engineering group of the

COSYS department (Cosys includes 12 laboratories in transport area).

讲座内容:

High-speed train developments is increasingly growing, whereas the use of

high speed makes possible to bring new kind of services. Among others, time

travel decreasing leads to propose some new transnational high speed

connections for passengers. Interoperability is a key component of the

trans-national high speed railways lines. Actually, there is a lot of saved

time when no material or transfer are needed in order to gothrough a border line. Moreover,

using several dedicated technological systems in order to deal with different

technological environments introduces both an over cost and some safety

problems. The presentation provides a safety point of view of the

trans-national high speed lines developments, focusing on the operating rule

management aspects. It presents the evolution from a know-how centered approach

towards a model engineering approach for safety assessment. A French ETCS

implementation problematic will be described as an illustration.

In fact, the ERTMS specification concerns on board technological systems

and their communication with the trackside material, whereas the trackside part

of the railway system is still defined by national rules. As the railway system

as to fulfill the specification from board-side and track-side, an ERTMS

implementation in a given country leads to several issues. The first one is the

validation of operation rules with respects to all specification; the second

one is the need of safety property assessment for the considered railway

system: the several different specification sources leads to a complex

problem. Last but not least, some

national operating rules forbid some specific functioning modes or had some

constraints on some other ones… The interoperability is effective when you

perform not one but two ERTMS implementations such a way that you can make a

train cross a border. In this case, a safe way of switching from a given ERTMS

implementation to another one has to be found.

As a conclusion, the need of a productivity framework, including some

formal software tools is outlines. Modular approaches based on model

engineering are discussed.