The poor design of our Interstate system

I've been thinking a lot about the Interstate system and traffic congestion lately. When the Interstate system was planned and built, it brought the Interstates close to urban centers. At the time, that only made sense. After all, if you are using this vast network of freeways for commerce, then they have to service the commerce centers. Unfortunately for us today and into the future, this design was incredibly short sighted. It did not account for economic and population growth that would strain the Interstates in urban areas. The Interstate system should have been made up of two components. The first component would have been long range highways that widely bypass the nation's big cities. These long range freeways would allow urban areas the space to grow while quickly moving the longer range point to point traffic. The second component of the Interstate should have been feeder freeways that served urban areas. These feeder freeways would handle the bulk of local traffic in urban areas. By largely segregating local and non-local traffic onto separate highways, the system would allow commerce to move more quickly from point to point and decrease the pressure on urban freeways. They tried to correct for this with bypasses, but in most cities the bypasses have become as muc a part of the local traffic as the highways that entered the cities. The long range point to point Interstate highways should also have been subject to tolls in heavily populated areas that were unavoidable while keeping the feeder highways free. This system certainly would have been more expensive to build but I think it would have paid economic dividends in the long run. Unfortunately, hindsight is 20-20, and any attempt to adjust the Interstate system now to allow for this segregated traffic would be hugely expensive. It does lead me to wonder if Texas has the right idea when it comes to their plan to build a private toll expressway to facilitate shipping traffic through the state.