**Preface to "Emerging Electronics Technologies and Solutions for Eco-Friendly Cities"**

The rising demand for power, water supply and waste management, pedestrian safety, the efficient use of electric vehicles, traffic jams, commuting, the identification of all road users and prediction of their travel paths, and increasing air and noise levels are the most pressing issues in today's cities. This Special Issue aims to present high-quality research and recent advances of technologies towards eco-friendly cities.

> **Darius Andriukaitis, Yongjun Pan, and Peter Brida** *Editors*
