Karen Carriere as Executive Director of Technical Services, TTCI; Jim Raffa, head of market development, RBMN The Transportation Technology Center, Inc., (TTCI) has appointed Karen Carriere as Executive Director of Technical Services; Reading & Northern (RBMN) welcomes back Jim Raffa, who will be charged with market development. Carriere will be overseeing the Association of American Railroads’ (AAR) technical committees that develop, maintain and enforce North American railroad interchange rules, mechanical standards and component specifications. With more than 25 years of experience, Carr...