Fibre-Optic Sensing for Road-Traffic Monitoring in Remote Areas
by Martin Litzenberger, Carmina Coronel and Kilian Wohlleben (AIT Austrian Institute of Technology GmbH)
Accurate real-time traffic sensing is of key importance for optimising and managing road traffic. Often the high density of traffic sensors, needed to achieve an accurate real-time monitoring of important roads, is difficult to implement due to technical constraints or because of high installation cost. Fibre-optic sensing (FOS) is a new and cost-effective alternative technology that allows a seamless, real-time monitoring of the road traffic over large distances of up to 50 km, even in remote areas such as on critical costal or mountain roads, using existing telecom fibre-optic cable infrastructure.