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Spatio-Temporal Analysis Of Highway Congestion And Accidents: A Case Study Of Interstate 285 In Georgia, Melodi Zhan-Moodie
Spatio-Temporal Analysis Of Highway Congestion And Accidents: A Case Study Of Interstate 285 In Georgia, Melodi Zhan-Moodie
Master of Science in Civil Engineering Theses
Road traffic crashes threaten thousands of drivers every day and significant efforts have been put forth to reduce the number of traffic crashes and their impact. Traffic congestion could be both a result of and a contributing factor to traffic crashes. The aim of this study is to investigate spatio-temporal traffic congestion and crash patterns to gain a better understanding of the causation of congestion and accidents, and their interaction. The Interstate 285 (I-285) in Georgia was used as a case study. With the aid of Geographic Information Systems (GIS), spatial clustering and densities of accidents were performed by following …
A Comparative Study Of Insertion Loss Of Traffic Noise Barriers In Georgia, Pablo Giraldo, Jidong Yang
A Comparative Study Of Insertion Loss Of Traffic Noise Barriers In Georgia, Pablo Giraldo, Jidong Yang
Master of Science in Civil Engineering Theses
In this paper, three types of traffic noise barriers, interlocking steel panels, precast concrete panels, and Paragon panel 23-T, were evaluated in terms of insertion loss. Field test was conducted for the noise barriers recently installed as part of the Northwest Express Project in Georgia. The noise insertion loss was measured as noise difference in A-weighted decibels (dBA) immediately before and after the barriers. The insertion loss was then evaluated by correlating with noise barrier types and other influential variables, including the separation distance of barriers from traffic, the level of traffic, wind speed, and pavement types. The results showed …