Thanks, everyone. The insight has helped me to look at the problem a little differently. I just couldn't see how three through lanes with on/off ramps could be more efficient than three through lanes connected by an auxillary lane.
The calcs from the Highway Capacity Manual don't make logical...
Could anyone tell me the advantages over a weaving section vs an on/off ramp junction section. I have analyzed both alternative, but the LOS is higher for the ramps. This does not make logical sense?
