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Steady State Hydroplaning Risk Analysis And Evaluation Of Unsteady State Effects, Menna Yassin
Steady State Hydroplaning Risk Analysis And Evaluation Of Unsteady State Effects, Menna Yassin
USF Tampa Graduate Theses and Dissertations
Hydroplaning is a major concern on high speed roadways during heavy rainfall events. Hydroplaning tools are widely used by designers to reduce their roadway’s hydroplaning potential, therefore reducing the possibilities of severe crashes. This dissertation presents two methodologies for improving the prediction of hydroplaning potential.
The first phase focused on improving an existing widely used software called PAVDRN. Using multiple datasets from the Florida Department of Transportation, the author filtered the data using specific criteria to leave only truly dynamic hydroplaning crashes. The author then evaluated PAVDRN’s prediction capabilities and assessed its reliability in predicting a hydroplaning crash. Using past …
Assessing Appropriate Technology Handwashing Stations In Mali, West Africa, Colleen Claire Naughton
Assessing Appropriate Technology Handwashing Stations In Mali, West Africa, Colleen Claire Naughton
USF Tampa Graduate Theses and Dissertations
Proper hand hygiene is the most effective and efficient method to prevent over 1.3 million deaths annually from diarrheal disease and Acute Respiratory Infections (ARIs). Hand hygiene is also indispensable in achieving the fourth Millennium Development Goal (MDG) to reduce the childhood mortality rate by 2/3rds between 1990 and 2015. Handwashing has been found in a systematic review of studies to reduce diarrhea by 47%#37; and is, thus, capable of preventing a million deaths (Curtis et. al., 2003). Despite this evidence, hand washing rates remain seriously low in the developing world (Scott et al., 2008).
This study developed and implemented …