Questions on assisting Raytheon

The Arizona Daily Star story today outlines city/county proposals to allow for expansion of Raytheon, a major employer in the area.

The government proposal involves realigning roads (see map below):

Divert South Alvernon Way to the southeast so it will no longer cut across the future location of a third runway for Tucson International that the airport could build 20 to 40 years from now. Alvernon Way would travel to the southeast until it connected to the alignment of South Craycroft Road – where Craycroft would be if it extended that far south. The current alignment of South Alvernon would be closed as would portions of South Swan Road along with Hughes Access. Old Vail would be improved and expanded. Cost: $31 million.

My question is why bother realigning Alvernon? Why not simply abandon it south of Los Reales Road and gain access to the property from the Nogales Highway? Wouldn’t that save money?

I invite the city/county to provide an explanation of why that alternative is not being considered.