In a nutshell: Nobody likes a freeway that's so congested it resembles a parking lot. The usual solution is to widen the road, but that comes with huge costs and lengthy disruptions. In California, ...
The H-1 expansion project in Oahu is underway, and will include a pedestrian bridge, a raised Gulick Overpass, and a widened Middle Street merge, with an expected completion date of December 2027.