Verkkoin this study we hypothesized an interaction between driving experience and visibility, as the speed reduction in fog compared to clear visibility. Verkkoby meteorological definition, fog reduces the visual range to less than 3,300 ft (1 kilometer); Verkkothe effect of reduced visibility on traffic parameters is more significant on inner lanes than outer lanes. Under these weather conditions, drivers. Verkkoin this study, the 250 m visibility in the light fog scenario caused the subjects to reduce their speeds to the same extent as the 50 m visibility in the. Verkkovisibility is a critical factor for drivers to perceive roadway information, and fog is an inclement weather condition that directly impacts their vision, since it.