Scientific Online Publishing (SOP)
GTFS (General Transit Feed Specification) feeds are well-known and useful datasets that describe transit data of public transport agencies. They are used by many applications for various purposes, but on today's mobile devices, these applications cannot work efficiently with the GTFS feeds without an internet connection and server-side processing. After a short overview about applications using GTFS, the authors introduce their data structure. The goal of their data structure is to support storing and using GTFS feeds on mobile devices in an efficient way.