I would not call it an obstacle unless someone is trying to get rail out to all parts of Duval County overnight. Imo, get the urban core right (reconnect the dense neighborhoods with downtown via streetcar) and a couple of commuter options (commuter rail or Amtrak corridor service) out to burbs with congestion issues (i.e. Orange Park, etc.) and go from there. We're no where near Chicago's status and will not be in our lifetimes. However, we can be competitive with second tier peers like Charlotte, Salt Lake City, Columbus, Nashville, etc.