This implementation follows Entur's Nordic SIRI Profile specification. Initial project structure was inspired by MTA's GTFS-Realtime to SIRI Converter.
Abstract: This paper presents a single-ended four-level pulse amplitude modulation (PAM-4) receiver for maximum transition avoidance (MTA)-coded signaling ...
GTFS frequencies.txt allows defining multiple frequency blocks for the same trip_id. When these frequency blocks overlap in time, they may generate duplicate trips with the same trip_id operating at ...