The Null Device
Doing its part to cope with the global obesity epidemic, the subway system in Sao Paolo, Brazil, has introduced double-width, reinforced seats for fat people:
The seats are bright blue and have stickers above them marking them out as special seats for the use of obese persons. Strangely enough, they seem almost always empty; presumably, a lot of those who can fit into a regular seat or can bear standing are not keen to self-identify themselves as severely overweight.
One wonders how facility planners could cater for a widening population without coming up against against stigma and denial. They could, of course, go back to flat benches without divisions, except that those allow homeless people to sleep on them, which is unacceptable for various reasons. (Not all people are sufficiently enlightened and compassionate to share their daily commute with the aromatically homeless, and if public transport facilities adopted a secondary role as a homeless shelter, this would drive out many of those who are sufficiently well-off to avoid public transport, putting more cars on the road, and resulting in the money spent on running the actual trains being wasted, but I digress.) Possibly some sort of design with all seats being double-width with a low-key, or movable, divider in the middle, would do the trick; though that could have the unintended consequence of encouraging amorous couples.