You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
Link for those wondering what I'm talking about: (https://en.m.wikipedia.org/wiki/Dual_gauge). Considering how dual gauge railways can join lines of different gauges, could this be used to create a more unified American rail network in the pre-Civil War period and the years following it? In a surviving CSA where the economy isn't quite a disaster, could this be a good workaround for their numerous gauges?
EDIT: While I know dual gauge was used in the US, I was wondering about giving it a much expanded role.