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Articles 1 - 13 of 13
Full-Text Articles in Engineering
Impact Of Construction On Freeway Traffic Operations, Seema Jagtap
Impact Of Construction On Freeway Traffic Operations, Seema Jagtap
Electronic Theses and Dissertations
This study provides an insight into the impact of construction activities on traffic operations. Specifically, the topic of interest for this thesis is to study the impact of construction on traffic operations for construction projects on Interstate 4 from SR 434 to John Young Parkway, from SR 528 to SR 535, and from SR 482 to SR 528. These three projects were chosen because they were the only projects on Interstate 4 where both construction data and loop detector data were available for analysis. The data was collected by examining the Florida Department of Transportation daily inspection reports which had …
Hurricane Evacuation: Origin, Route And Destination, Vinayak Dixit
Hurricane Evacuation: Origin, Route And Destination, Vinayak Dixit
Electronic Theses and Dissertations
Recent natural disasters have highlighted the need to evacuate people as quickly as possible. During hurricane Rita in 2005, people were stuck in queue buildups and large scale congestions, due to improper use of capacity, planning and inadequate response to vehicle breakdown, flooding and accidents. Every minute is precious in situation of such disaster scenarios. Understanding evacuation demand loading is an essential part of any evacuation planning. One of the factors often understood to effect evacuation, but not modeled has been the effect of a previous hurricane. This has also been termed as the 'Katrina Effect', where, due to the …
Severity Analysis Of Driver Crash Involvements On Multilane High Speed Arterial Corridors, Alexis Nevarez-Pagan
Severity Analysis Of Driver Crash Involvements On Multilane High Speed Arterial Corridors, Alexis Nevarez-Pagan
Electronic Theses and Dissertations
Arterial roads constitute the majority of the centerline miles of the Florida State Highway System. Severe injury involvements on these roads account for a quarter of the total severe injuries reported statewide. This research focuses on driver injury severity analysis of statewide multilane high speed arterials using crash data for the years 2002 to 2004. The first goal is to test different ways of analyzing crash data (by road entity and crash types) and find the best method of driver injury severity analysis. A second goal is to find driver, vehicle, road and environment related factors that contribute to severe …
Evaluation Of Climatic And Ecohydrological Effects On Longwave Radiation And Evapotranspiration, Maria Rizou
Evaluation Of Climatic And Ecohydrological Effects On Longwave Radiation And Evapotranspiration, Maria Rizou
Electronic Theses and Dissertations
Modern tools, nontraditional datasets and a better understanding of the interaction between climate and ecohydrology are continuously being developed as today's society is in critical need for improving water management, predicting hydrometeorological hazards and forecasting future climate. In particular, the study of the intra- and inter-annual variations in grass productivity and evapotranspiration caused by variations in precipitation/soil moisture and other biophysical factors is of great significance due to their relation to future climatic changes. The research presented here falls in three parts. In the first part of the dissertation, a land use adaptable model, based on the superposition of the …
Evaluating The Impact Of Oocea's Dynamic Message Signs (Dms) On Travelers' Experience Using A Pre And Post-Deployment Survey, Jason Flick
Electronic Theses and Dissertations
The purpose of this thesis was to evaluate the impact of dynamic message signs (DMS) on the Orlando-Orange County Expressway Authority (OOCEA) toll road network using a Pre and Post-Deployment DMS Survey (henceforth referred to as "pre and post-deployment survey") analysis. DMS are electronic traffic signs used on roadways to give travelers information about travel times, traffic congestion, accidents, disabled vehicles, AMBER alerts, and special events. The particular DMS referred to in this study are large rectangular signs installed over the travel lanes and these are not the portable trailer mount signs. The OOCEA have been working over the past …
Characteristics Of Red Light Running Crashesin Florida, Dina Elnashar
Characteristics Of Red Light Running Crashesin Florida, Dina Elnashar
Electronic Theses and Dissertations
Red light running is one of the main contributing factors of crashes in urban areas in Florida and the United States. Nationwide, according to preliminary estimates by the Federal Highway Administration (FHWA) 2001, there were nearly 218,000 red-light running crashes at intersections. These crashes resulted in as many as 181,000 injuries and 880 fatalities, and an economic loss estimated at $14 billion per year nationwide, According to the Community Traffic Safety Team Florida Coalition (A statewide traffic safety group) there were 9,348 crashes involving red-light running in Florida and 127 fatalities in 1999. This research study focused on studying the …
Lidar In Coastal Storm Surge Modeling: Modeling Linear Raised Features, David Coggin
Lidar In Coastal Storm Surge Modeling: Modeling Linear Raised Features, David Coggin
Electronic Theses and Dissertations
A method for extracting linear raised features from laser scanned altimetry (LiDAR) datasets is presented. The objective is to automate the method so that elements in a coastal storm surge simulation finite element mesh might have their edges aligned along vertical terrain features. Terrain features of interest are those that are high and long enough to form a hydrodynamic impediment while being narrow enough that the features might be straddled and not modeled if element edges are not purposely aligned. These features are commonly raised roadbeds but may occur due to other manmade alterations to the terrain or natural terrain. …
A High-Resolution Storm Surge Model For The Pascagoula Region, Mississippi, Naeko Takahashi
A High-Resolution Storm Surge Model For The Pascagoula Region, Mississippi, Naeko Takahashi
Electronic Theses and Dissertations
The city of Pascagoula and its coastal areas along the United States Gulf Coast have experienced many catastrophic hurricanes and were devastated by high storm surges caused by Hurricane Katrina (August 23 to 30, 2005). The National Hurricane Center reported high water marks exceeding 6 meters near the port of Pascagoula with a near 10-meter high water mark recorded near the Hurricane Katrina landfall location in Waveland, MS. Although the Pascagoula River is located 105 km east of the landfall location of Hurricane Katrina, the area was devastated by storm surge-induced inundation because of its low elevation. Building on a …
The Calibration And Verification Of Simulation Models For Toll Plazas, Christopher Russo
The Calibration And Verification Of Simulation Models For Toll Plazas, Christopher Russo
Electronic Theses and Dissertations
A great deal of research has been conducted on Central Florida toll roads to better understand the characteristics of the tolling operation. In this thesis, the development and calibration of a toll plaza simulation models will be analyzed using two simulation programs varying mostly in their modeling theory. The two models utilized are, SHAKER, a deterministic queuing model for vehicles utilizing toll collection facilities, and VISSIM, a globally popular stochastic simulation software. The benefits of simulation models leads to the purpose of this thesis, which is to examine the effectiveness of two toll modeling programs that are similar in purpose …
A Comparison Of Load Test Data And Predicted Behavior Of Augercast Piles In Layered Soils, John Hudson
A Comparison Of Load Test Data And Predicted Behavior Of Augercast Piles In Layered Soils, John Hudson
Electronic Theses and Dissertations
The use of auger cast-in-place (ACIP) pilings is very common in Florida; however, there is a significant degree of uncertainty in determining the actual capacity of the pilings, especially when the pilings are installed through layers of cohesive soils. Therefore, there is a need to improve upon the existing methods of predicting the behavior of ACIP piles in layered soils. As a result, the primary objective of this study is to determine if a significant difference exists between the accepted methods of pile load test analysis. Provided a significant difference is noted, the secondary objective would be to determine if …
Empirical Relationships Betweenload Test Data And Predicted Compression Capacity Of Augered Cast-In-Place Piles In Predominantly, Donald Mccarthy
Empirical Relationships Betweenload Test Data And Predicted Compression Capacity Of Augered Cast-In-Place Piles In Predominantly, Donald Mccarthy
Electronic Theses and Dissertations
Augered Cast-In-Place (ACIP) Piles are used in areas were the loading from a superstructure exceeds the soil bearing capacity for usage of a shallow foundation. In Northwest Florida and along the Gulf Coast, ACIP piles are often utilized as foundation alternatives for multi-story condominium projects. Data from 25 compression load tests at 13 different project sites in Florida and Alabama were analyzed to determine their individual relationships between anticipated and determined compression load capacity. The anticipated capacity of the ACIP pile is routinely overestimated due to uncertainties involved with the process of estimating the compressive capacity and procedures of placing …
Finite Element Modeling Of Tides And Currents Of The Pascagoula River, Qing Wang
Finite Element Modeling Of Tides And Currents Of The Pascagoula River, Qing Wang
Electronic Theses and Dissertations
This thesis focuses on the simulation of astronomic tides of the Pascagoula River. The work is comprised of five steps: 1) Production of a digital elevation model describing the entire Pascagoula River system; 2) Development of an inlet-based, unstructured mesh for inbank flow to better understand the basis of the hydrodynamics within the Pascagoula riverine system. In order to assist in the mesh development, a toolbox was constructed to implement one-dimensional river cross sections into the two-dimensional model; 3) Implementation of a sensitivity analysis of the Pascagoula River two inlet system to examine the inlet effects on tidal propagation; 4) …
Development Of Hydraulic And Soil Properties For Soil Amendments And Native Soils For Retention Ponds In Marion County, Florida, Lisa Naujock
Electronic Theses and Dissertations
The vadose zone plays an important role in managing stormwater. Predicting the water balance and water movement is crucial in ground water remediation to keep water suitable for use. To aid in understanding soils ability to transmit and store water, soil and hydraulic properties were analyzed for soils in Marion County, Florida, and potential soil amendments. Soil and hydraulic properties were examined for two soil amendments and for the soils in Marion County, Florida, at the South Oak and the Hunter's Trace locations. The hydraulic properties measured were the soil moisture retention curve (SMRC) and saturated hydraulic conductivity (Ks). The …