PREVENTION EFFECT OF VELOCITY DETERIORATION BY USING OPTICAL ILLUSION GATES AT SAG SECTIN

Abstract

Currently about 60% of traffic jams on express highways nationwide are said to occur at sag sections, as traffic congestion at tollgates decreased significantly with the introduction of electronic toll collection system (ETC). Therefore, in order to further decrease traffic jams on express highways, there is an urgent need to consider measures to reduce traffic congestion at sag sections. A wide variety of hardware and software has been suggested to deal with traffic jams. In this study, a measure for suppressing traffic congestion at sag sections has been proposed, expected to be low in cost and readily installed , which utilizes optical illusions for drivers. An experiment which used driving simulator resulted in suggestion that setting gates at incremental intervals at uphill sag sections resulted in suppression of speed reduction in those sections .