The Institute of Transport Science under the direction of Univ.-Prof. Dr.-Ing Nils Nießen at RWTH Aachen University consists of the Chair of Railway Engineering and Transport Economics as well as the Chair of Air Transport and Airport Research.

Univ.-Prof. Dr.-Ing Nils Nießen leads the Chair of Railway Engineering and Transport Economics since 2013. The Chair of Air Transport and Airport Research is directed by Univ.-Prof. Dr. rer. nat. Johannes Reichmuth since 2004.