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Countermeasures For Pedestrian-Involved Accidents On Interstate-Highways, Anna C. Hunter 2020 University of Arkansas, Fayetteville

Countermeasures For Pedestrian-Involved Accidents On Interstate-Highways, Anna C. Hunter

Civil Engineering Undergraduate Honors Theses

Pedestrian access to the Interstate is prohibited, but many pedestrian-involved accidents still occur on the Interstate in the United States. This project is a case study of West Memphis, Arkansas, which has the second highest occurrence of pedestrian-involved accidents on the Interstate in Arkansas. The study site location includes a segment of Interstate I-40 which is at- grade. The surrounding area contains several different land-uses, which is believed to be the primary generator of these accidents. The goal of this project is to determine the primary causes of these accidents and determine potential countermeasures to reduce the crash rate for ...


Ranchers Adapting To Climate Variability In The Upper Colorado River Basin, Utah, Hadia Akbar 2020 Utah State University

Ranchers Adapting To Climate Variability In The Upper Colorado River Basin, Utah, Hadia Akbar

All Graduate Theses and Dissertations

Changes in climate influence agricultural production. This study looks at the impacts of climate variability in the Utah regions of the Upper Colorado River Basin by combining regression techniques with interview data to explore how climate variability affects agricultural production and how the farmers are adapting their practices to these changes. The results show that climate does not have any significant impact on cattle and hay production in the study area on a decadal scale. However, on an annual basis temperature seems to have more impact than precipitation. Among non-climatic variables, commodity prices and their regulations by the government are ...


Pollution Prevention And Water Reuse At Utah Department Of Transportation Facilities, Amanda Stoudt 2020 Utah State University

Pollution Prevention And Water Reuse At Utah Department Of Transportation Facilities, Amanda Stoudt

All Graduate Theses and Dissertations

As stormwater flows over roads, sidewalks, and other impervious surfaces, it picks up pollutants that are deposited on these surfaces. One common pollutant transported by stormwater is road salt. While the application of road salt is crucial for wintertime public safety, road salt has a host of negative environmental impacts. Road salt has been linked to increasing levels of dissolved solids in groundwater, vegetation damage, and behavioral changes in aquatic organisms. Studies have shown that these impacts are concentrated around salt storage facilities. As a result, the United States Environmental Protection Agency issued many state departments of transportation municipal separate ...


Strategic Infrastructure Planning For Autonomous Vehicles, Zhaocai Liu 2020 Utah State University

Strategic Infrastructure Planning For Autonomous Vehicles, Zhaocai Liu

All Graduate Theses and Dissertations

Compared with conventional human-driven vehicles (HVs), AVs have various potential benefits, such as increasing road capacity and lowering vehicular fuel consumption and emissions. Road infrastructure management, adaptation, and upgrade plays a key role in promoting the adoption and benefit realization of AVs.This dissertation investigated several strategic infrastructure planning problems for AVs. First, it studied the potential impact of AVs on the congestion patterns of transportation networks. Second, it investigated the strategic planning problem for a new form of managed lanes for autonomous vehicles, designated as autonomous-vehicle/toll lanes, which are freely accessible to autonomous vehicles while allowing human-driven vehicles ...


Air Quality Analysis Of Merrimack College, Patrick J. Mckeown 2020 Merrimack College

Air Quality Analysis Of Merrimack College, Patrick J. Mckeown

Honors Program Contracts

No abstract provided.


Relationship Between Sunspot Numbers And Mean Annual Precipitation: Application Of Cross-Wavelet Transform—A Case Study, Mohammad Nazari-Sharabian, Moses Karakouzian 2020 University of Nevada, Las Vegas

Relationship Between Sunspot Numbers And Mean Annual Precipitation: Application Of Cross-Wavelet Transform—A Case Study, Mohammad Nazari-Sharabian, Moses Karakouzian

Civil & Environmental Engineering and Construction Faculty Publications

Observations show that the Sun, which is the primary source of energy for the Earth’s climate system, is a variable star. In order to understand the influence of solar variability on the Earth’s climate, knowledge of solar variability and solar–terrestrial interactions is required. Knowledge of the Sun’s cyclic behavior can be used for future prediction purposes on Earth. In this study, the possible connection between sunspot numbers (SSN) as a proxy for the 11-year solar cycle and mean annual precipitation (MAP) in Iran were investigated, with the motivation of contributing to the controversial issue of the ...


Wireless Underground Communications In Sewer And Stormwater Overflow Monitoring: Radio Waves Through Soil And Asphalt Medium, Usman Raza, Abdul Salam 2020 Purdue University

Wireless Underground Communications In Sewer And Stormwater Overflow Monitoring: Radio Waves Through Soil And Asphalt Medium, Usman Raza, Abdul Salam

Faculty Publications

Storm drains and sanitary sewers are prone to backups and overflows due to extra amount wastewater entering the pipes. To prevent that, it is imperative to efficiently monitor the urban underground infrastructure. The combination of sensors system and wireless underground communication system can be used to realize urban underground IoT applications, e.g., storm water and wastewater overflow monitoring systems. The aim of this article is to establish a feasibility of the use of wireless underground communications techniques, and wave propagation through the subsurface soil and asphalt layers, in an underground pavement system for storm water and sewer overflow monitoring ...


Sea Level, Tidal, And River Flow Trends In The Lower Columbia River Estuary, 1853-Present, Stefan Talke, Andrew Mahedy, David A. Jay, Patrick Lau, Conrad Hilley, Amanda Hudson 2020 California State Polytechnic University, San Luis Obispo

Sea Level, Tidal, And River Flow Trends In The Lower Columbia River Estuary, 1853-Present, Stefan Talke, Andrew Mahedy, David A. Jay, Patrick Lau, Conrad Hilley, Amanda Hudson

Civil and Environmental Engineering Faculty Publications and Presentations

Few tidal records are available pre-1900 for the Pacific Ocean. We improve data coverage by recovering historical tabulations and digitizing analog tide rolls from Astoria, Oregon for 1853-1876. Nearly 13,500 overlapping images of tides from 1855-1870 were digitized at a 6 minute resolution using a line-finding algorithm. Available hourly and high/low tabulations were also digitized, as were nearby hourly records from 1933-1943. Uncertainty was assessed by evaluating manual staff measurements, historical documents, and leveling surveys. Results suggest that uncertainty in mean sea level varies from ± 0.07m (early 1850s) to ± 0.03m (1867-1876) and is driven primarily by ...


Analysis And Assessment Of The Reimbursement Rates And Mechanisms For Kentucky’S Publicly Funded Ferries, P. Gayle Marks, Bryan Gibson, Andrew Martin, Steven Douglas Kreis 2020 University of Kentucky

Analysis And Assessment Of The Reimbursement Rates And Mechanisms For Kentucky’S Publicly Funded Ferries, P. Gayle Marks, Bryan Gibson, Andrew Martin, Steven Douglas Kreis

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) reimburses publicly operated ferries, including when they cease operations due to severe weather or unforeseen events. Reimbursement procedures are not codified in law and are largely based on historical practice. To determine how the Cabinet should handle reimbursement, funding, oversight of ferry services moving forward, the Kentucky Transportation Center (KTC) reviewed practices adopted by 10 other states and conducted a detailed analysis of Kentucky’s current approach. Of the states KTC examined, only Tennessee reimburses ferry operations for closures (at 50 percent of the normal hourly rate for a period up to 48 hours). Half ...


Rich Magee - Bmp Trains - January 31, 2020, Rich Magee 2020 UCF Stormwater Management Academy

Rich Magee - Bmp Trains - January 31, 2020, Rich Magee

BMP Trains

Rich Magee's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Martin Wanielista - Bmp Trains Intro & Navigation - January 31, 2020, Martin Wanielista 2020 University of Central Florida

Martin Wanielista - Bmp Trains Intro & Navigation - January 31, 2020, Martin Wanielista

BMP Trains

Dr. Martin Wanielista's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Martin Wanielista - Bmp Trains Model Features - January 31, 2020, Martin Wanielista 2020 University of Central Florida

Martin Wanielista - Bmp Trains Model Features - January 31, 2020, Martin Wanielista

BMP Trains

Dr. Martin Wanielista's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Martin Wanielista - Bmp Trains Example Application - January 31, 2020, Martin Wanielista 2020 University of Central Florida

Martin Wanielista - Bmp Trains Example Application - January 31, 2020, Martin Wanielista

BMP Trains

Dr. Martin Wanielista's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Mike Hardin - Bmp Trains - January 31, 2020, Mike Hardin 2020 University of Central Florida

Mike Hardin - Bmp Trains - January 31, 2020, Mike Hardin

BMP Trains

Dr. Mike Hardin's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Ikiensinma Gogo-Abite - Bmp Trains Presentation - January 31, 2020, Ikiensinma Gogo-Abite 2020 University of Central Florida

Ikiensinma Gogo-Abite - Bmp Trains Presentation - January 31, 2020, Ikiensinma Gogo-Abite

BMP Trains

Dr. Ikiensinma Gogo-Abite's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Eric Livingston - Bmp Trains - January 31, 2020, Eric Livingston 2020 University of Central Florida

Eric Livingston - Bmp Trains - January 31, 2020, Eric Livingston

BMP Trains

Eric Livingston's slides from his PowerPoint presentation during the BMPTRAINS workshop on January 30-31, 2020.


Exploring The Evolution Of Drought Characteristics In Balochistan, Pakistan, Shoaib Jamro, Falak Naz Channa, Ghulam Hussain Dars, Kamran Ansari, Nir Krakauer 2020 Mehran University of Engineering and Technology

Exploring The Evolution Of Drought Characteristics In Balochistan, Pakistan, Shoaib Jamro, Falak Naz Channa, Ghulam Hussain Dars, Kamran Ansari, Nir Krakauer

Publications and Research

In the wake of a rapidly changing climate, droughts have intensified, in both duration and severity, across the globe. The Germanwatch long-term Climate Risk Index ranks Pakistan among the top 10 countries most affected by the adverse effects of climate change. Within Pakistan, the province of Balochistan is among the most vulnerable regions due to recurring prolonged droughts, erratic precipitation patterns, and dependence on agriculture and livestock for survival. This study aims to explore how the characteristics of droughts have evolved in the region from 1902–2015 using 3-month and 12-month timescales of a popular drought index, the Standardized Precipitation ...


Harvey Harper - Morning Presentation Slides - January 30, 2020, Harvey H. Harper III 2020 University of Central Florida

Harvey Harper - Morning Presentation Slides - January 30, 2020, Harvey H. Harper Iii

BMP Trains

Dr. Harvey Harper's slides from the morning presentation at the January 30, 2020 BMP Trains workshop.


Harvey Harper - Afternoon Presentation Slides - January 30, 2020, Harvey H. Harper III 2020 University of Central Florida

Harvey Harper - Afternoon Presentation Slides - January 30, 2020, Harvey H. Harper Iii

BMP Trains

Dr. Harvey Harper's slides from the afternoon presentation at the January 30, 2020 BMP Trains workshop.


Comparing Single-Objective Optimization Protocols For Calibrating The Birds Nest Aquifer Model—A Problem Having Multiple Local Optima, Richard T. Lyons, Richard C. Peralta, Partha Majumder 2020 Utah State University

Comparing Single-Objective Optimization Protocols For Calibrating The Birds Nest Aquifer Model—A Problem Having Multiple Local Optima, Richard T. Lyons, Richard C. Peralta, Partha Majumder

Civil and Environmental Engineering Faculty Publications

To best represent reality, simulation models of environmental and health-related systems might be very nonlinear. Model calibration ideally identifies globally optimal sets of parameters to use for subsequent prediction. For a nonlinear system having multiple local optima, calibration can be tedious. For such a system, we contrast calibration results from PEST, a commonly used automated parameter estimation program versus several meta-heuristic global optimizers available as external packages for the Python computer language—the Gray Wolf Optimization (GWO) algorithm; the DYCORS optimizer framework with a Radial Basis Function surrogate simulator (DRB); and particle swarm optimization (PSO). We ran each optimizer 15 ...


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