Prague Integrated Transport

Prague Integrated Transport (, "PID") is an integrated public transport system including metro, tramways, railways, city bus and coach services, river boat services, the Petřín funicular and park and ride services. PID operates in Prague and in most of the Central Bohemian Region.
Integration means introducing a single fare and tickets together with unified regulations, route numbering plan, some parts of the information system, transfer facilities improving mixed-mode commuting, and also unified service subsidy system. Prague Integrated Transport is co-ordinated by ROPID.
Naming.
Previously, Prague transport system used to be called IDS (integrovaný dopravní systém – integrated transport system). Modern name (pražská integrovaná doprava) was first used in 1993 as a part of the name of ROPID organisation, which has also started using this name for the transport system itself.
Tickets.
The Prague Integrated Transport (PID) network operates on a proof-of-payment system. Passengers must buy and validate a ticket immediately after boarding a vehicle, or before entering a metro station's paid area. There are uniformed and plainclothes fare inspectors who randomly check passengers' tickets within the paid area; they are equipped with an inspection badge or carrier ID.
The tickets are the same for all means of transport in Prague (metro, tramways, city buses, funiculars and ferries).
Basic single transfer tickets cost 32 CZK (as of 1 August 2018) for a 90-minute ride or 24 CZK for a 30-minute ride. In November 2007 SMS purchase for basic single transfer tickets and day tickets was introduced.
Short-term tourist passes are available for periods of 24 hours (110 CZK) and 3 days (310 CZK).
Longer-term season tickets can be bought on the smart ticketing system Lítačka card, for periods of one month (550 CZK), three months (1480 CZK) or the annual pass for 3650 CZK.
Transporters participating in PID.
Train services.
Train services included in PID are currently operated by:
Metro, trams, Petřín funicular.
City rail services are "de facto" monopolised by Dopravní podnik hl. m. Prahy, which operates all Prague tram and metro services, and the Petřín funicular. To date, there have not been any realistic proposals of any other transporter to operate any services of this kind.
Bus and coach services.
Dopravní podnik hl. m. Prahy.
City bus services in Prague were originally operated by multiple city-owned enterprises, later merged into a single entity: Dopravní podnik hl. m. Prahy. Today, this company operates most of the city bus services, and also some of the suburban coach services.
Waterway transport.
Boat services are operated by: