Copenhagen to Ringsted train with Regional

Intercity is a broad classification for express train services that connect cities over longer distances than commuter or regional trains, often with limited stops and comfortable carriages for long-distance travel. The term "InterCity" originated with British Rail in 1966 for its electrified West Coast Main Line services.Today, "Intercity" or "IC" is a brand name used by various railway operators across Europe and other parts of the world, including PKP Intercity in Poland, Trenitalia in Italy, and services in countries like Sweden and Ukraine. These trains typically offer both Standard and First Class seating, with amenities such as power sockets and luggage space. While some Intercity services are modern and high-speed, others may use older rolling stock, with speeds generally up to 160 km/h (100 mph).

EuroCity (EC) is an international train category and brand for inter-city trains that cross international borders within Europe. These trains are a collaboration between various European rail companies, including Deutsche Bahn (Germany), Trenitalia (Italy), SBB (Switzerland), and ÖBB (Austria). EuroCity trains connect major cities across Europe, offering both first and second-class coaches. They are known for meeting specific criteria for comfort, speed, cleanliness, and onboard food service, including air-conditioned cars and dining facilities. EuroCity services aim to provide convenient and comfortable cross-border travel, with stops typically lasting no more than 5 to 15 minutes.

Deutsche Bahn (DB) is Germany’s main train operator, running around 40,000 domestic and international services each day. Its fleet includes a variety of train types: high-speed ICE (Intercity Express) trains, reaching up to 300 km/h; IC (Intercity) and EC (EuroCity) trains for long-distance travel; and IRE (Interregio-Express), RE (Regional Express), and RB (Regionalbahn) services for regional and local connections. While bathrooms are standard on all trains, amenities such as onboard restaurants and free Wi-Fi are available only on certain train types and routes. DB offers a wide range of fares, including Super Saver, Saver, and Flexible tickets, along with discount cards like the BahnCard 25, 50, and 100. Additional options include single tickets, day tickets, and group tickets. Popular routes include Berlin–Munich, Hamburg–Frankfurt, Cologne–Stuttgart, Berlin–Dresden, and Hamburg–Cologne, as well as numerous regional services across Germany.

The term "Regional" can refer to different train companies and services depending on the country. In Germany, "Regionalbahn" (RB) is a type of local passenger train that typically stops at all stations on a given line, connecting cities to their surrounding areas. Many RB trains are operated by DB Regio, a division of Deutsche Bahn, but other companies also run these services.