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FOSA Case Studies & Papers

Fiber optic sensing examples and technical papers.

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Smart Roads: Highway Congestion and Incident Management, New Zealand (OptaSense®)
Topic: FOSA Case Studies
Owner: Tom Cohen
Date: 2017-04-12
Subtopic: Smart infrastructure

The Distributed Acoustic Sensing (DAS) System has the ability to convert a longitudinal fibre optic cable into an array of virtual microphones – allowing users to monitor long linear assets in real time and detect acoustic events in the vicinity of the fibre. This technology has the potential to detect and measure vehicle movements as well as traffic patterns, such as congestion or queuing, directly and in real time at any point along the fibre installation. A key feature of the technology is it can be retrofitted on to existing communications fibre optic cabling running adjacent to road sections making it attractive for busy roads or where traffic management overheads are prohibitive for conventional in road detection, such as with installing loop detectors. While the technology’s primary detection capabilities are mature and operational in areas such as security and asset protection, this project will be exploring how to translate this in to operational road traffic and incident detection ITS application. 

Download File   Congestion-and-Incident-Management-Applications.pdf