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Sensors 2015, 15(6), 14370-14396;

Managing Emergency Situations in the Smart City: The Smart Signal

Aragón Institute of Engineering Research (I3A), Universidad Zaragoza, Edificio IDi, Mariano Esquillor s/n, Zaragoza 50018, Spain
Author to whom correspondence should be addressed.
Academic Editors: Antonio Puliafito, Symeon Papavassiliou and Dario Bruneo
Received: 30 April 2015 / Revised: 3 June 2015 / Accepted: 8 June 2015 / Published: 18 June 2015
(This article belongs to the Special Issue Sensors and Smart Cities)
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In a city there are numerous items, many of them unnoticed but essential; this is the case of the signals. Signals are considered objects with reduced technological interest, but in this paper we prove that making them smart and integrating in the IoT (Internet of Things) could be a relevant contribution to the Smart City. This paper presents the concept of Smart Signal, as a device conscious of its context, with communication skills, able to offer the best message to the user, and as a ubiquitous element that contributes with information to the city. We present the design considerations and a real implementation and validation of the system in one of the most challenging environments that may exist in a city: a tunnel. The main advantages of the Smart Signal are the improvement of the actual functionality of the signal providing new interaction capabilities with users and a new sensory mechanism of the Smart City. View Full-Text
Keywords: Smart Signal; Smart City; wireless networks; tunnel Smart Signal; Smart City; wireless networks; tunnel

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Asensio, Á.; Blanco, T.; Blasco, R.; Marco, Á.; Casas, R. Managing Emergency Situations in the Smart City: The Smart Signal. Sensors 2015, 15, 14370-14396.

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