Institution: | 1. Instituto de Investigacion Tecnologica , Universidad Pontificia Comillas , Alberto Aguilera 23, 28015, Madrid, Spain;2. Massachusetts Institute of Technology , Cambridge, MA, USA rafael.palacios@iit.upcomillas.es;4. Massachusetts Institute of Technology , Cambridge, MA, USA;5. Massachusetts Institute of Technology , Cambridge, MA, USA;6. Eller College of Management , University of Arizona , Tucson, AZ, USA;7. Volpe National Transportation Systems Center , Cambridge, MA, USA |