This book constitutes the thoroughly refereed
proceedings of the 4th International Conference on Smart Cities and Green ICT
Systems, SMARTGREENS 2015, and the 1st International
Conference on Vehicle Technology and Intelligent Transport Systems, VEHITS
2015, held in Lisbon, Portugal, in May 2015.
The 15 full papers of SMARTGREENS 2015 presented
were carefully reviewed and selected from 73 submissions. VEHITS 2015 received
27 paper submissions from which 3 papers were selected and published in this
book. The papers reflect topics such as smart cities, energy-aware systems and
technologies, sustainable computing and communications, sustainable
transportation and smart mobility.