If they chose to expand the road, the assumption is that they considered the obvious cons (displacement during construction, cost of land and labor for construc

If they chose to expand the road, the assumption is that they considered the obvious cons (displacement during construction, cost of land and labor for construction, added pollution and noise, change in demographics, etc) and were hoping for the obvious pros (reducing traffic). I always hear people quick to say it won't reduce traffic, but I never hear alternatives that are proven to work. By dismissing expanding a road over that one thing, they also seem to dismiss the other pros (I mentioned possible gains in economic throughput) and the cost of inaction.