That system was slow and doesn’t solve the same problems. It’s competing with long range travel and all of those track routes were far slower than just driving.
The problems that Colorado faces are transportation within urban areas. Driving to salt lake and ski resorts isn’t an issue.
All those routes could be made faster and it also had routes running down the front range too. Either way traffic on 70 into summit county is stupid and this is the salve. Already exists. Already graded. Already set up to serve vail and many other destinations that people rent a car from DEN to reach today.
The problems that Colorado faces are transportation within urban areas. Driving to salt lake and ski resorts isn’t an issue.