A Practical Fog Detection and Dissipating System for the Preventing Fog Hazards of the Long-Span Bridge

摘要

A transportation development in recent years is quite remarkable. The occurrence and prediction ofrnfog have been significant operational issues for quite some time, particularly with regard torntransportation. A poor visibility arose from heavy fog and high vehicle speeds often causes terriblernaccidents such as Seohae grand bridge’s case at 2006 in Korea. Therefore, It is very important tornquickly detect a fog occurrence, to notify users, and to practically be able to dissipate fog. In thisrnstudy, we have proposed intelligent system to be aware of fog-occurrence, to deliver high intensityrnfog area and to operate fog-dissipating system at the long-span bridge. Well-tailored fog potentialrnindex can be provided to the two types of mobile application for the bridge’s manager and users. Inrnthe case of forecasting high intensity fog through calculated fog potential index, fiber net of farinfraredrnradiation is unfolded to hinder approaching fog and dissipate fog inside the bridge, whichrnresults in increasing more than 300m visibility distance capable to ordinarily drive. We expectrnthis practical system to effectively respond fog hazards in the long span bridge, and have a plan tornstrengthen forecasting method through probabilistic analysis in the future.