University of Technology Sydney, Australia; Obuda University, Hungary

Signals and Communications Department, Institute for Technological Development and Innovation in Communications, University of Las Palmas de Gran Canaria, 35001 Las Palmas, Spain

Centre of Real Time Computer Systems, Kaunas University of Technology, Kaunas, Lithuania

Department of Civil Engineering, Reader in Railway and Civil Engineering, The University of Birmingham, Edgbaston B152TT, UK

Institute of the Building Environment & Sustainability Technology, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Department of Electrical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807618, Taiwan

Department of Railroad and Electrical Engineering, Woosong University, Daejeon 34606, Republic of Korea

Dipartimento di Pianificazione, Design, Tecnologia dell’Architettura, Sapienza Università di Roma, 00196 Roma, Italy

Copernicus Institute of Sustainable Development, Utrecht University, Princetonlaan 8, 3584 CB Utrecht, The Netherlands

Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall TR10 9FE, UK

Department of Energy “Galileo Ferraris”, Politecnico di Torino, 10129 Turin, Italy; Energy Center Lab, Politecnico di Torino, 10138 Turin, Italy