EAgLE: Equivalent Acoustic Level Estimator Proposal.Road infrastructures represent a key point in the development of smart cities.  In this paper, a new methodology, easy to be implemented in a sensor concept, based on video processing and object detection tools, is proposed: the Equivalent Acoustic Level Estimator (EAgLE).  The input parameters of EAgLE are detected analyzing video images of the area under study.  A preliminary test of the EAgLE technique is proposed in this paper on two sample measurements performed in proximity of an Italian highway.  These satisfying results, once confirmed by a larger validation test, will open the way to the development of a dedicated sensor, embedding the EAgLE model, with possible interesting applications in smart cities and road infrastructures monitoring. 
EAgLE