The Rhine-Main Transport Association (

Rhein-Main-Verkehrsverbund The Rhein-Main-Verkehrsverbund (RMV) is a transport association that covers the public transport network of the Frankfurt Rhine-Main area in Germany. Its head office is located in Hofheim im Taunus. Organisation and area covered The RMV ...

) has given unique numbers to its regional railway services in regular operation.

Rhine-Main S-Bahn The Rhine-Main S-Bahn system is an integrated rapid transit and commuter train system for the Frankfurt/Rhine-Main region, which includes the cities Frankfurt am Main, Wiesbaden, Mainz, Offenbach am Main, Hanau and Darmstadt. The network compris ...

lines have a single digit with an "S" prefix, as is standard in Germany, while the remaining lines have two-digit numbers, preceded by two letters indicating the train class: "RB" ( Regionalbahn) and "RE" (

Regional-Express In Germany, Luxembourg and Austria, the Regional-Express (RE, or in Austria: REX) is a type of regional train. It is similar to a semi-fast train, with average speed at about 70–90 km/h (top speed often 160 km/h) as it calls at ...

). The lines are mainly run to and from

Frankfurt Frankfurt, officially Frankfurt am Main (; Hessian: , "Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its na ...

as the metropolis of the

Rhine-Main region The Rhine-Main Metropolitan Region, often simply referred to as Frankfurt Rhine-Main, Frankfurt Rhine-Main area or Rhine-Main area (German: ''Rhein-Main-Gebiet'' or ''Frankfurt/Rhein-Main'', abbreviated FRM), is the second-largest metropolitan re ...

, but there are also a number of connecting lines between the major towns of the whole area.

External links

* {{German regional rail services Regional rail in Germany Transport in Hesse