Professor Joe Martin Interviewed on Cost of Navy Yard Subway Extension

Professor Joseph Martin was interviewed by Jim Saksa of PlanPhilly, a project of WHYY, regarding the cost of the Navy Yard subway extension.  Please go to the following link to read the full article:  http://planphilly.com/articles/2018/04/05/price-tag-on-navy-yard-subway-extension-could-double-original-estimate