Originally Posted by bzcat

The double deck roadway without mode separation doubles traffic because all the shuttle buses have to make 2 circles to drop off and pickup. It's outdated thinking.

Given that we have 2 completely separate road ways, the smart way to handle vehicular traffic at LAX would be to send buses and shuttles and taxi to one level, and send private vehicles to another level. This way, you instantly reduce 50% of buses and shuttle traffic, which are the main contributor to LAX's traffic, and will improve boarding and dispatch efficiency (easier to stick to a schedule = less buses required). And if buses doesn't have to compete for curb space and get stuck with the private cars, they will be faster and more effective, and more people will use public transportation, thereby reducing the demand for private automobile accessing LAX as well.