Also a safety risk...
http://mdn.mainichi.jp/mdnnews/national/news/20090703p2a00m0na012000c.html?inb=rs
And an engineering bad joke.
Quote:
"None of the elevated expressway sections built before 2002 were designed to cope with metal fatigue in mind"
It's like conceiving a boat without accounting for the fact that it must be watertight below the waterline. The level of stupidity here is impressive.