A cross-platform interchange is a type of interchange between different lines at a metro station. The term originates with the London Underground; such layouts exist in other networks but are not comm
Single cross-platform interchange at Konggang Xincheng Jiangning station of Nanjing Metro, China, providing continuation of travel between Line S1 and S7.
Double cross platform interchange looking from one train through another train (which has its doors open on both sides) to reveal a third train at Barking in London
The upper-level platforms (2 and 4) of Siam Station serving westbound trains
Cross-platform interchanges between different train categories in Xipu Railway Station, Chengdu. The double track of Line 2 of Chengdu Metro is in the middle, while the double tracks of national rail transport system (Chengdu–Dujiangyan intercity railway) are on both sides.
In railway and rapid transit parlance, the Spanish solution is a station layout with two railway platforms, one on each side of a track, which allows for separate platforms for boarding and alighting.
Cross-platform interchange
…by side platforms for passengers wanting to get off at this station, and an island platform for passengers transferring between trains. Trains use the spanish solution, opening doors on both sides. The SEPTA Metro B has cross-platform interchanges between local and express trains at Olney Transit Center, Erie, Girard…
Eastbound track at Marienplatz station, Munich S-Bahn
Spanish solution on Line 6 at Charles de Gaulle–Étoile, Paris Metro
Platforms of the Chabacano station on Line 8, Mexico City Metro
Boston's Park Street Under station in 1912. The same platform configuration is still in use.