CNN CNN Newsroom With Carol Costello May 14, 2015 13:56:00
Passengers along the northeast corridor between washington and boston it has become one of the busiest, most complex technically advanced rail systems in the world. engineering professor george bible says while traveling by train is largely safe passengers should be more concerned about the state of the tracks than speeding engineers. >> most derailments are caused by equipment error, rail problems are a common one. rails can fracture from metal fatigue or move around and shift or anything else that moves. common ones are wheels bearings and axles. coincidentally the site of tuesday's crash in...
Source: archive.org