Manz, H.; Schnieder, E.:
Implementation of the normative safety case structure for satellite based railway applications.
ICIRT 2013 - IEEE International Conference on Intelligent Rail Transportation, Beijing, China, August 2013.
Enabling safe, green and intelligent railway
transportation is a major target of transportation research. This
is supported by satellite based localisation systems (GNSS) like
GPS which already provide large economical and operational
benefits by supporting applications in transport like passenger
information, energy saving driving or tracking and tracing.
The application of satellite based localisation systems for
information purposes is a valuated contribution for a more
efficient operation of trains. If satellite based localisation can be
used as mean of safe localisation in train control systems, higher
benefits according a safer and more reliable operation can be
expected. To enable the usage in this application field, the
certification of the localisation unit according the valid normative
background of railways is necessary.
Traditionally, a development of a product in railways starts
with requirements which are the base for the product
development and the following certification process. For the
approval of an application of satellite based localisation for safety
relevant purposes in railways, an already existing system like
GPS shall be used as localisation device and therefore as
important data source and needs therefore to be included into the
certification process because of no generic certification of GNSS
being already available. This paper can be the base for an
approval process enabling the certification of satellite based
localisation in railways.