Kolumbus Real Time Open Data
Kolumbus Real Time Open Data is standardized on SIRI (Service Interface for Real Time Information) which is a web based XML protocol to allow distributed computers to exchange real time information about public transport services and vehicles.
SIRI is a CEN technical specification, and is based on the Transmodel abstract model for public transport information, and comprises a general purpose model, and an XML schema for public transport information.
For more information, see https://en.wikipedia.org/wiki/Service_Interface_for_Real_Time_Information
Kolumbus has implemented three SIRI interfaces:
SIRI VM – Vehicle Monitoring (positioning and status for all buses)
SIRI SM – Stop Monitoring (departure prognosis for individual bus stops)
SIRI SX – Situation Exchange (deviation messages)
Kolumbus currently support the SIRI version 1.4.
There are approximately 400 buses that operate and have real-time information in Rogaland.
For technical developer details and examples, see https://www.kolumbus.no/siri/