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Gate Violations by Truck Drivers at Highway-Rail Grade Crossings in Two Cities
Get PDFGate violations during train crossing events by truck drivers at highway-rail grade crossings in two cities were investigated. About 22% of the collected observations involved gate violations by truck drivers. Analysis showed that the frequencies of gate violations increased with higher truck traffic during crossing events and drivers of single-unit trucks displayed a greater propensity for gate violations compared with drivers of trucks with trailers. Violations were more frequent with longer times between the onset of flashing lights and train arrivals at the crossings. Options for reducing truck drivers’ gate violations at gated crossings are provided
Truck Use on Texas Toll Roads
Get PDFMetropolitan toll roads are a popular source of non-traditional funded highway investment, targeting automobile users. Toll rates have been traditionally derived from traffic and revenue (T&R) studies, which appear unable to accurately estimate truck demand even when a toll road offers an alternative route segment to interstate trucking. This paper examines the current failure of Texas toll road SH-130 to attract truckers from IH-35 in Austin, one of the most congested Texas corridors. CT-VCOST, a comprehensive vehicle operating cost toolkit, was used to calculate truck operating costs on both highways to investigate why few truckers are using the toll facility and whether the decision is based on toll rates or other factors
Early Chinese Faience and Glass Beads and Pendants
Get PDFThe earliest Chinese beads and pendants were composed of faience and appeared during the early Western Zhou period, around the 11th Century B.C. True glass began to be made about the time of the Spring and Autumn period (771-467 B.C.). An amazing variety of beautiful "dragonfly-eye beads" appeared in China during the Warring States period (475-221 B.C.), but these were imported and not local products. The complex eye beads were replaced during the Han dynasty (206 B.C.-A.D. 220) by small, plain glass beads generally intended to be strung together. Perforated glass ear spools were also popular during this period and were sometimes adorned with bead strands. Small glass stringing beads as well as other forms continued in use in subsequent dynasties, as did various types of pendants. During the Ming dynasty (1368-1644), glass was used to produce beautiful imitation jade objects including fanciful compound pendants. These were often finely carved and exhibit a high level of craftsmanship
Factors Contributing to School Bus Crashes
Get PDFSchool bus safety is a community concern because parents expect their children to be transported to and from school safely. However, relatively few studies have been devoted to examining the factors contributing to school bus crashes. In this study, a logistic regression model is used to delineate the factors that contribute to school bus collisions from collisions involving other types of buses. As expected, we find significant differences in crash factors arising from differences in exposure and operating characteristics. Surprisingly, we also find that school bus drivers are more likely to commit driving violations or errors than non-school bus drivers
Textualities in the Digital Age
Get PDFThe article provides an overview of the symposium of the same name held at the University of Oregon on April 14, 2012. A summary of the presentations is included
