Hello,
Around the world in Stormworks, in every train station, there are white pylons, with a red strip, at the entry and the exit of the edit zone. These pylons have been badly placed when you created these train stations. When the largest possible train or wagon cross these pylons, there is an extremely high probability for the pylons to destroy the vehicules. Even at low speeds. Pylons are not even symmetrical to the (fictionnal) center line cuttin the entries/exit in half.
You really need to check out these pylons, and correct this problem. Really.
Have a nice day,
Sincerely,
M�katite.