Sup with the Asian horror films?

Random thought…

I’ve come across a lot of Asian horror films lately (2004-2008) that all take place on trains, such as:

Kereta hantu Manggarai (Ghost Train of Mangarai)
Chum thaang rot fai phi (Train of the dead)
Otoshimono (Ghost Train)
Redeu-ai (Red Eye)
Kyôfu ressha (Death Train)

Most of them are types of stories that take place on a ghost train. What is up with that? I know that in a lot of Asian movies, it seems that trains are a representation of the passage of life through death like in the movie, Graves of the Fireflies. But what is it lately that they have on making horrors on trains?? Way to make siderodromophobics even more scared!