System requirements specification (SRS Sample Clauses

System requirements specification (SRS. The following requirements are an extract of an actual generic SRS, applied to the pilot: The CBTC equipped trains shall be capable of operating in various modes, depending on the territory where the train is and depending on the operational status of the carborne and/or wayside CBTC equipment. The following table presents the different identified territories: Territory Definition Full CBTC territory zone fully equipped with wayside CBTC where ATPF modes are the normal CBTC operating modes; it corresponds at least to the territory where trains carry passengers and where operating rules are consequently requesting maximum safety. Non CBTC territory Non CBTC equipped zone, protected by interlocking, where ATPR is the normal CBTC operating mode (no CBTC control except at an other CBTC equipped territory approach). Operating Mode Applicable Territory Normal or Degraded Definition of the CBTC operating mode CBTC duty Train Operator duty ATPF: CBTC Normal The train operates The TO opens and closes the Automatic automatically in presence doors under CBTC protection Manual of an operator. and initiates the start of the train ATP protection applies an train. operation EB if the train is not maintained within ATP limits. ATPR:Automatic CBTC Degraded No ATP protection except a speed limitation check The TO opens and closes the doors without CBTC Operating Mode Applicable Territory Normal or Degraded Definition of the CBTC operating mode CBTC duty Train Operator duty TrainProtection Restricted No CBTC Normal (low configurable value). protection, drives the train under a (low) speed limitation, with help of the wayside signals. Bypass All Degraded no ATP protection (hardware bypass in train. The train driving is under TO responsibility, wayside interlocking protection (if any) SRS_1 {V}: The CBTC system shall establish the location of both extremities of any CBTC train running on a CBTC territory.