Jeffrey S. Tubbs, PE, is an associate principal with the global engineering and consulting firm Arup, and is staff group leader of Arup's Westborough, Massachusetts, office. Tubbs is a registered fire protection engineer in seven states, and has extensive experience developing prescriptive and performance-based code fire protection, life safety, and egress strategies for projects in the United States and internationally. In addition to being an adjunct instructor at the Center for Fire Safety Studies at Worcester Polytechnic Institute, Tubbs has also contributed his expertise to various buildi...