RT Journal Article T1 ITERL: A Wireless Adaptive System for Efficient Road Lighting A1 García Castellano, María A1 González Romo, Juan Manuel A1 Gómez Galán, Juan Antonio A1 García Martín, Juan Pablo A1 Torralba, Antonio A1 Pérez Mira, Ventura AB This work presents the development and construction of an adaptive street lighting system that improves safety at intersections, which is the result of applying low-power Internet of Things (IoT) techniques to intelligent transportation systems. A set of wireless sensor nodes using the Institute of Electrical and Electronics Engineers (IEEE) 802.15.4 standard with additional internet protocol (IP) connectivity measures both ambient conditions and vehicle transit. These measurements are sent to a coordinator node that collects and passes them to a local controller, which then makes decisions leading to the streetlight being turned on and its illumination level controlled. Streetlights are autonomous, powered by photovoltaic energy, and wirelessly connected, achieving a high degree of energy efficiency. Relevant data are also sent to the highway conservation center, allowing it to maintain up-to-date information for the system, enabling preventive maintenance. PB MDPI SN 1424-8220 YR 2019 FD 2019-12 LK http://hdl.handle.net/10272/17640 UL http://hdl.handle.net/10272/17640 LA eng NO García Castellano, M., González Romo, J.M., Gómez Galán, J. A., García Martín, J. P., Torralba, A., Pérez Mira, V. (2019). ITERL: A Wireless Adaptive System for Efficient Road Lighting. Sensors, 19(23), 5101. DOI: https://doi.org/10.3390/s19235101 NO This research was funded by the Consejería de Fomento y Vivienda of the Andalusian RegionalGovernment, and by the European Regional Development Fund under Grant G-GI3002/IDIO. DS Repositorio Institucional de la Universidad de Huelva RD 14 jul 2026