Holy cow, I wrote a book!
Murphy's Law vindicated again.
The Seattle Monorail has two trains, and last year
they managed to collide.
To get this to happen was particularly tricky, since the trains
run on separate tracks, and there is only one spot on the entire
line where a collision could occur—and they found it.
You can read about it in
this Associated Press article that describes the monorail as
a "mile-high, 43-year-old elevated line".
Wow, a mile high.
Those must've been really long ladders to get people down.
It was supposed to resume operation a few weeks ago, but
the reopening was delayed due to a glitch in the emergency-braking system.
We can't get anything right around here.