Browsing Civil and Environmental Engineering by Title
Now showing items 330-349 of 878
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An Evaluation of the Safety and Operational Impacts of a Candidate Variable Speed Limit Control Strategy on an Urban Freeway
(University of Waterloo, 2006)Variable Speed Limit Sign (VSLS) systems enable transportation managers to dynamically change the posted speed limit in response to prevailing traffic and/or weather conditions. VSLS are thought to improve safety and ... -
An Evaluation of the Technical and Economic Performance of Weigh-In-Motion Sensing Technology
(University of Waterloo, 2007-09-11)Deteriorating roadway conditions have drawn attention to the need to develop an accurate and practical system to control increasing excessive traffic volumes and traffic loads. In practice, traffic volumes often exceed ... -
Evaluation of Ultra-Wideband Sensing Technology for Position Location in Indoor Construction Environments
(University of Waterloo, 2011-04-29)Effective construction management involves real-time decisions regarding the progress of specific activities, the location of materials and equipment, and the construction site safety. The decision making process can be ... -
Evaluation of Various Treatment Methods for Enhancing the Properties of Recycled Concrete Aggregate for Hot Mix Asphalt
(University of Waterloo, 2019-04-29)Sustainability and awareness of the environment are becoming increasingly important for transportation agencies worldwide. Sustainable development has significance for obvious and relevant reasons in all areas of civil ... -
Evaluation of X-Ray Computed Tomography and Finite Element Models for Fatigue Experimental Hot Mix Asphalt Characterization
(University of Waterloo, 2016-01-15)Fatigue cracking is one of the major distresses of surface hot mix asphalt (HMA) pavement that shorten pavement service life. Under typical Canadian weather conditions, fatigue distress requires frequent and high-cost ... -
Event Based Characterization of Hydrologic Change in Urbanizing Southern Ontario Watersheds via High Resolution Stream Gauge Data
(University of Waterloo, 2013-04-05)Tracking and quantifying hydrologic change in urbanizing watersheds is a complex problem which can vary spatially and temporally throughout the effective catchment area as change occurs. Hydromodification due to urbanization ... -
Event-based model calibration approaches for selecting representative distributed parameters in semi-urban watersheds
(Elsevier, 2018-08-01)The objective of this study is to propose an event-based calibration approach for selecting representative semi-distributed hydrologic model parameters and to enhance peak flow prediction at multiple sites of a semi-urban ... -
Evidence for methane hydrate stability zones during Pleistocene glaciation at the Bruce Nuclear Site
(University of Waterloo, 2013-05-22)A gas hydrate refers to the state in which hydrogen-bonded water molecules form a rigid lattice structure of so-called "cages", wherein "guest" molecules of natural gas are entrapped. Not unlike ice, gas hydrates are prone ... -
Examining the effects of autonomous vehicle ride sharing services on fixed-route public transit
(University of Waterloo, 2020-05-14)With the increased development of new transportation technologies such as autonomous vehicles and ridesharing fleet services comes the possibility of a new mode of transportation: autonomous vehicle ridesharing services ... -
Excitation Force and Frequency Effects in Wave-Based Techniques for the Characterization of Geomaterials at Different Scales
(University of Waterloo, 2020-10-06)All around the world, building codes require the characterization of geomaterials as a fundamental step in the foundation design process. Specifically, in seismic design, the evaluation of dynamic properties is a key ... -
Experimental and Analytical Investigation of the Cavity Expansion Method for Mechanical Characterization of Soft Materials
(University of Waterloo, 2016-03-17)In biomedical engineering, the mechanical properties of biological tissues are commonly determined by using conventional methods such as tensile stretching, confined and unconfined compression, indentation and elastography. ... -
Experimental Evaluation of a Distributed Fiber Optic Sensor for Mining Application
(University of Waterloo, 2016-05-04)Triggered remote seismic events have been widely studied in the earthquake engineering context where various possible explanations have been provided, including directivity of dynamic stresses, a critically stressed ... -
Experimental Fracture Toughness Of A Lightly Bonded Interface
(University of Waterloo, 2017-05-18)The geomechanical behaviour of natural fractured media (NFM) is governed by existing planes of weakness. These planes of weakness can be open fractures, partially closed joints, or cemented veins, and they are classified ... -
Experimental Investigation and ANN Modelling of the Behavior of Asphalt Binders Modified with Novel Geopolymers
(University of Waterloo, 2022-08-24)The design of asphalt pavement has an impact on a country’s economic and environmental development. The main factors limiting the service life of flexible pavements are severe weather and increasing traffic volumes. Rutting ... -
Experimental Investigation of the Shear Behaviour of Slender Concrete Beams Reinforced with GFRP
(University of Waterloo, 2019-09-19)Glass fibre-reinforced polymers (GFRP) are being used as longitudinal and shear reinforcement in specialized concrete applications. GFRP products are designed as direct replacements for conventional steel reinforcement and ... -
Exploring Pretreatments for the Solar Water Disinfection (SODIS) Process
(University of Waterloo, 2008-08-27)The use of sunlight for water disinfection has been practiced since ancient times. Only in the last three decades has solar disinfection become widely recognized as a viable means of providing safe drinking water to the ... -
Extracellular Electron Transport in Microbial Electrochemical Cells
(University of Waterloo, 2016-06-30)Microbial electrochemical cells (MxCs) are engineered biological systems that use microbial metabolism of anode-respiring bacteria (ARB) to catalyze electron transfer from a soluble electron donor to the anode via extracellular ... -
Factors Affecting the Transport of Pathogens & Pathogen Surrogates in Saturated Porous Media: Implications for Natural & Engineered Drinking Water Filters
(University of Waterloo, 2013-01-25)Three tiers of bench-scale experiments were conducted to evaluate the use of laboratory column investigations for studying the transport and removal of pathogenic microorganisms (i.e. disease causing viruses, bacteria ... -
Fate Modeling of Xenobiotic Organic Compounds (XOCs) in Wastewater Treatment Plants
(University of Waterloo, 2013-11-15)Xenobiotic Organic Compounds (XOCs) are present in wastewater and wastewater-impacted environmental systems. Pharmaceuticals and personal care products are a broad and varied category of chemicals that are included among ... -
Fate of Select Pharmaceutically Active Compounds in the Integrated Fixed Film Activated Sludge Process
(University of Waterloo, 2014-05-23)Based on a diverse consortia of research completed within the last 15 years, it has been found that Pharmaceutical Compounds (PCs) are present in detectable levels within a variety of environmental matrices, including tap ...