Safety Impact Assessment of Optimal RWIS Networks—An Empirical Examination

Optimal RWIS network can be defined as an configuration where the total number of stations (RWIS density) are determined based on a well-established guideline and locations allocated systematically assuming that it will provide maximum monitoring coverage network. This paper examines quantifies benefit optimized how these benefits impact traffic safety. The methodological framework presented herein builds upon our previous efforts in location-allocation, kriging variance is used performance indicator for coverage. In this study, index (NCI) parameter proposed to gauge quantitatively evaluate its findings study reveal strong dependency between NCI configuration. terms safety, relationship safety effectiveness expressed polynomial function, two proportional one another. state Iowa, with 80% (NCI = 0.8) reduce additional 40 collisions per site annually compared without stations. Based obtained road agencies planners now assisted conceptualizing capabilities network, which help them increase coverage, process, gain quantitative understanding potential