Enabling Certification of Satellite Based Localization in Railways by Combination of Redundant Sensors and Map Matching

:With the proven general applicability of satellite based localization systems (GNSS) and satellite based augmentation systems (SBAS) the way is paved for safety relevant applications in railways. Secondary lines currently equipped with no or only a not up-to-date train control system as well as the currently introduced European train control system (ETCS) can benefit from satellite based train localization. Thus the efficiency of operation can be increased including the reduction of costs for infrastructure equipment.