PCI DSS (Payment Card Industry Data Security Standard)

PCI is an industry standard designed to make it safer to use credit cards online by making sure that business collecting credit card data transmit and store it securely.

Open Graph Tags

Open Graph is a technology first introduced by Facebook in 2010 that allows integration between Facebook and its user data, and a website. By integrating Open Graph meta tags into the content of your pages, you can identify which elements of your page you want to show when someone shares your page.

NaPTAN (National Public Transport Access Node)

The UK’s national dataset of public transport access points (bus stops, rail stations, airports, ferry piers, tram/metro/underground stops) is known as the NaPTAN database.

It records approximately 400,000 bus stops across England, Scotland and Wales, as well as other transport terminals including rail stations and airports.

NaPTAN consists of:

  • A standard for identifying and naming access points to public transport
  • A database of all public transport access points in Great Britain
  • The XML schema for exchanging data or an alternative CSV exchange format version.

NaPTAN database data is available in XML or CSV format with the most recent updates by local authorities being listed. The NaPTAN database is managed by the Department for Transport and updated by local authorities. NaPTAN is a core component of the national transport information infrastructure and is used by a number of other UK standards and information systems.


Serial number printed on the front of a smart card.


ITSO are the guardian of the ITSO Specification, which aims to make travelling on public transport throughout the UK seamless and easier by enabling smart ticketing technology. 

The ITSO community is a membership of public sector authorities, transport operators and equipment and solution suppliers to the smart ticketing industry, who use the ITSO Specification to deliver smart, integrated and interoperable ticketing across Great Britain.


The serial number encoded on a smart card but not known to a customer.

HOPS (Host Operator or Processing System)

The central system which holds information about everyone’s smart cards. HOPS automates many of the complex daily tasks of a smart transport ticketing scheme including transaction processing and asset management.

GTFS (General Transit Feed Specification)

A data specification that allows public transport operators to publish their transit data in a format that can be consumed by a wide variety of software applications. Today, the GTFS data format covers both static and real-time data and is used by thousands of public transport providers.

You can learn more about the GTFS specification in detail at GTFS.org and at developers.google.com/transit.

GTFS was originally written by Google and is similar to the TransXChange and SIRI formats used widely in the UK. Many public transport operators release this data as open data. A good source of GTFS data in the UK is Passenger’s open data portal.

AVL (Automatic Vehicle Location)

AVL systems provide the GPS coordinates of where a vehicle physically is with some periodicity (e.g. every 30 seconds). These require vehicles to be equipped with a GPS receiver and mobile broadband connection. The location is sent to a central server, which then provides a live feed, usually a SIRI-VM feed, for all vehicles.

BSOG (Bus Service Operators Grant)

A grant paid to operators of eligible bus services and community transport organisations to help them recover some of their fuel costs. The amount each bus operator receives is based on their annual fuel consumption.

BSOG also benefits passengers by:

  • helping operators keep fares down
  • enabling operators to run services that might otherwise be unprofitable and could lead to cancellation.