I recall when the first oil crunch hit in 1973. The "gas shortage" and price increase helped Amtrak's passenger counts climb, and helped Amtrak survive its early years.Will the same thing happen today, with oil hitting record-high prices? Will Amtrak's ridership increase? It has had some growth, but I'm not sure if the reason is because of high gas prices.
The prices might not be record high anyway when inflation is considered.
For one, there are a lot more cheap air fares available today. Also, today many people are a lot more casual about racking up large credit card bills (for everything including gas), so the lure of saving money by riding Amtrak is not as strong as in the past.
MP