You need to visit YouTube and search “high speed rail” and restrict the search to “this week.” There is a group of lengthy videos bursting with important information on the Heartland Flyer route and regional HSR.
Most important, Oklahoma is not looking at bringing the state owned railroad between OKC and Tulsa to “high performance” standards. Instead, the route would be the Turner Turnpike. Obviously the state also owns this corridor and it is straight. Oklahoma is talking about true European-style HSR, which seems like corporate welfare for consultants. In other words, I am skeptical.
It may be that constructing a double track high performance line on the turnpike right-of-way is the best most feasible alternative. I don’t see Oklahoma spending $2 billion for high speed rail when the cities seem to have little commitment to transit. Just an opinion.
The good news here is the idea to double track the BNSF from OKC to Fort Worth. This is another excellent corridor and the light rail lines on the south end will nicely support the improved service.