The architecture of MTR stations is less artistic, instead focusing on structural practicability. With the high level of daily passenger traffic, facilities of the MTR stations are built with durability and accessibility in mind. After extensive retrofitting, the MTR system has become, in general, disabled-friendly—the trains have dedicated wheelchair space, the stations have special floor tiles to guide the blind safely on the platforms, and there are extra wide entry and exit gates for wheelchairs as well. Portable ramp for wheelchair users are available for boarding and alighting trains. On board the rolling stock, there are also flashing system maps on select trains while Active Line Diagrams and traditional route maps are installed on the others. Infopanels as well as on MTR In-Train TV onboard trains display important messages such as next station announcements as well as operational messages.