Here's a more practical map based upon existing projects. Blue is electrified services running hourly green are diesel services running bihourly. Red are long-distance routes that run daily.
>NEC given a fork in Connecticut, and a tunnel connecting Boston's North and South stations>NEC also given a 2nd Hudson tunnel and a totally new Penn Station, connected straight into GCT via the new East Side Access platforms>PA corridor further built out, Capitol Limited fully electrified>SEC constructed out of Amtrak's existing Crescent, starts diesel but goes electric. First part would be from DC to Atlanta, then Atlanta to New Orleans>2nd SEC branch down to Jacksonville>Amtrak's City of New Orleans also upgraded to function as reliable service between Chicago and New Orleans>rebuilt Sunset Limited tracks between New Orleans and Jacksonville>River Runner extended to Centrailia and used as a transfer service between the Southwest Chief and City of New OrleansAlso, of the western routes the Southwest Chief is probably the most practical to upgrade because (ideally) California will upgrade the tracks within their state, allowing for state-by-state upgrades of track through Arizona, New Mexico, Colorado, Kansas and Missouri (Illinois already upgraded their tracks into Quincy, so service can be more readily expanded there when ready). It'd also connect America's five largest cities (LA, Chicago, Atlanta, NYC, Boston) into two hubs (Chicago, DC).
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