I am working to develop medical trains for disasters/evacuations and for other purposes al well as other platforms such as shallow-draft brownwater/greenwater medical boats, seaplanes, medical buses, and modified shipping containers for medical support. All of these currently do not exist. Until I recieve approval to join your group on LinkedIn, I am posting my input herein. First, I have been researching railroads, hospital trains, and disasters/evacuations for almost 17-years now. In the course of doing so, I noted a number of train derailments and have been working on drawings/designs to help prevent train derailments, I recall a U.S. Air Force test of a manned rocket sled run dubbed "Sonic Wind" that used railroad track (See and http://www.youtube.com/watch?v=qdp4gxfwlv0). I also looked at the structures/mechanics underneath roller-coasters vehicles as a solution, because they are designed not to derail. The design I have come up with is somewhere between Sonic Wind and roller-coasters. I have been in contact with USDOT and, according to the Volpe Transportations Systems Center, I am the only one in the United States they know of working medical trains, an asset, like all trains needing to stay on track. I look forward to talking and working with you. Sincerely, Jeffrey