At any hearing or meeting before the commission on the approval or disapproval of the selection of any State transportation route or program, comparative estimates may be presented of the effects of the use of alternative transportation route or program. Estimates based on similar assumptions may be presented of the effect that the selection of any alternative transportation route or program would have upon economic or social values, including, but not limited to, property values, State and local public facilities and local traffic. The commission shall compile and submit to the Governor and the Secretary of Transportation for their consideration the information acquired at such hearings.
71 P.S. § 521