There is no exact number of advertising surfaces that are named notification media. But all in all there have to be many thousands of them. Every station has its own architecture and its own possibilities for providing surfaces to advertise on. The standard formats are DIN A0 and DIN A00 billboards in frames and behind glass . But also illuminated showcases between tracks, surfaces on pillars as well XXL poster surfaces behind tracks can be booked on many of them.
Notification and long term media which are intended for 12 months or longer durations. The advantages of notification media are easily summarized : localized, individual and inexpensive.
You can choose the train station and the exact location for your advert. One surface in the Format DIN A0 for example is available for only € 80,-.
Thanks to digital printing you can cover each surface with a different theme and set a different focus for each station. With notification media your advertisement in your area is present day and night and inexpensive.