SCOOT
Split Cycle Offset Optimisation Technique
SIM
Subscriber Identification Module
SIRI
Service Interface Real-Time Information. Normally a specific SIRI service type will be specified:
- SM Service Monitoring
- SX Situation Exchange
- PT Production Timetable
- ET Estimated Timetable
- VM Vehicle Monitoring
- GM General Message
SOAP
Simple Object Access Protocol
SSO
Single Sign On