Springbank, Daws & Goodwood Rd. Intersection- Liberal 'Folly'

As the Australian 2019 Federal Election looms Political Parties are 'pork-barrelling' in the marginal seat of Boothby in Adelaide South Australia.
Both major parties have promised $35m+ to 'fix' Springbank, Daws & Goodwood Rd. staggered T intersection.
Apparently in order to establish a 'point of difference' the Liberal Party is instituting a 'solution' that makes sense only to them and is unwilling to produce research to back up their claim that it is "...the Best."