Seems like the FRA has no monopoly on nervous nellies. In the US there is legislation that regulations of this type are subject to a requirement for a period of public comment lasting several months, after which the regulatory agency involved must consider such comments when formulating a final rule; any person may comment. Is there any such provision under British law, or is the announcement final as it stands? If it is, it looks like the end of a lot of historic train operations, along with ruinous financial consequences to the organizations which have devoted so much time, money, and effort with admirable results. I recall that in order to alight from a Mark I carriage it was necessary to lower the window and reach outside to open the door using the outside handle. (I assume that was to ensure that there were no projecting inside handles which a passenger could bump against.) During all the Mark I years did large-scale carnage result from such a hazard? For that matter, there was no impediment to opening the door before the train came to a stop--people were expected to have some common sense, and apparently they largely did.