One thing I've noticed about some freeway systems is that they add more lanes, but don't plan correctly. For instance, in my home city, there's a connector that

One thing I've noticed about some freeway systems is that they add more lanes, but don't plan correctly. For instance, in my home city, there's a connector that runs from downtown to the main interstate. When the two meet, 8 lanes have to merge into four. This creates a crunch situation, one that it seems LA suffers from as well. Instead, the lanes should be decreased ahead of time, before the merging occurs. Lanes can be reduced by making the rightmost lane exit-only at upstream exits, or through an upstream merge of the leftmost lane into the lane to its right. By reducing these two roads to two lanes before the merge, they can completely avoid this crunch.