While DVRPC claims to have a land use plan behind the 422 sprawl-builder, studies show that any increase in capacity
of expressways leads to more land development. Questions are now being raised to the motives behind DVPRC's push
to build out US-422 in Montgomery and Berks Counties.
Highway expansion does not increase economic activity on the regional level. Studies have shown that highway expansion simply diverts economic activity from existing urban areas to outlying areas. While the affected suburbs may receive a benefit from highway expansion, this is usually to the detriment of economic activity elsewhere in the region, primarily the downtown core or regional town centres.