This document specifies the characteristics of the Passenger Alarm System (PAS) for Urban Rail.
This document covers the PAS fitted to the passenger carrying Urban Rail rolling stock and specifies:
- the safety related requirements;
- the functional requirements of PAS triggered by passengers;
- the requirements for the communication channel between passengers and the driver or Operations Control Centre (OCC);
- the requirements for the functional behaviour of the PAS;
- the requirements for the degraded modes management;
- the requirements for the Passenger Alarm Device (PAD) and PAD area.
This document is applicable to the categories I to III of Urban Rail rolling stock defined in CEN/CLC Guide 26:
- (I) metros;
- (II) trams;
- (III) light rail.