Safe Rail Traffic Control Jörn Pachl Technische Universität Braunschweig
Contents 1 Basic characteristics of a railway system 2 Safe train separation (Block systems) 3 Safe routes on turnouts and crossing (Interlocking) 4 Automatic train protection (ATP)
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Eddy-current Brake on an ICE 3
The Role of the Infrastructure Operator Solving conflicts between train movements (dispatching) Providing safe track sections to be used by train movement Issuing movement authority to enter a track section
Core Safety Functions in Rail Traffic Control Safe train separation (avoiding crashes between following and opposing movements) Safe routes on turnouts and crossing (avoiding accidents on movable track elements and intersections) Automatic Train Protection (ATP) (preventing trains from violating authority limits)
Basic Principles of Safe Train Separation a) Moving block d 2 nd Train 1 st Train d brake,2 S b) Fixed block d 1 st Train 2 nd Train d brake,max l Block S
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Block Technologies Manual block (human operators still responsible for checking train completeness) Automatic block (Track clear detection effected automatically)
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