This is very comprehensive study that has many recommendations that would affect the way we get around and between our neighborhoods. The study seeks to address safety for pedestrians and vehicles alike. As well as address the changes in traffic and pedestrian needs with the addition of the Link light rail system next year. The study can be found here:
The reports are in .pdf format on the right hand side.
Some of the interesting recommendations include changing Rainier avenue south from Alaska to Rainier beach from four lanes to three lanes (center lane for turning). There are recommendations for the Rainier/MLK intersection as well. Personally I think it should be changed to a large traffic circle to facilitate traffic and safety.