Browsing Civil and Environmental Engineering by Title
Now showing items 395-414 of 881
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Framework for the Strategic Management of Dimensional Variability of Structures in Modular Construction
(University of Waterloo, 2016-09-01)Challenges in construction related to dimensional variability exist because producing components and assemblies that have perfect compliance to dimensions and geometry specified in a design is simply not feasible. The ... -
Freeway Travel Time Prediction Using Data from Mobile Probes
(University of Waterloo, 2010-11-12)It is widely agreed that estimates of freeway segment travel times are more highly valued by motorists than other forms of traveller information. The provision of real-time estimates of travel times is becoming relatively ... -
Freeway Workzone Capacity and Associated Economic Concepts
(University of Waterloo, 2009-01-16)Like many other transportation agencies, the Ministry of Transportation Ontario (MTO) is also using the same work zone closure strategies and standards that it has used for decades. However, the lane closure strategies ... -
Frequency Analysis of Droughts Using Stochastic and Soft Computing Techniques
(University of Waterloo, 2010-05-19)In the Canadian Prairies recurring droughts are one of the realities which can have significant economical, environmental, and social impacts. For example, droughts in 1997 and 2001 cost over $100 million on different ... -
Full-Depth Reclamation with Hydraulic Road Binders
(University of Waterloo, 2020-01-20)According to a recent report, 16.4% of Canadian roads are in a poor or very poor condition. This means 146,255 km of the Canadian roads are either unfit for service or are approaching the end of their service life. The ... -
Future of Canadian Air Quality and Related Health Benefits from Climate Change Mitigation
(University of Waterloo, 2021-05-21)Air pollution has been recognized as the world’s largest environmental health risk. Climate change is expected to exacerbate air pollution. Mitigating the “climate penalty” of climate change on air quality yields air ... -
Gearbox Fault Detection using Synchro-squeezing Transform
(Elsevier, 2016)This paper presents a novel fault-detection method for gearbox vibration signatures using synchro-squeezing transform (SST). Premised upon the concept of time-frequency (TF) reassignment, SST provides a sharp representation ... -
Geomechanics of Fluid Injection in Geological Reservoirs
(University of Waterloo, 2015-08-27)Numerous petroleum engineering, mining, and enhanced geothermal energy operations involve cyclic injection of fluids into geological formations. Geomechanics of injection operations in weakly consolidated or unconsolidated ... -
Geomechanics-Reservoir Modeling by Displacement Discontinuity-Finite Element Method
(University of Waterloo, 2008-07-29)There are two big challenges which restrict the extensive application of fully coupled geomechanics-reservoir modeling. The first challenge is computational effort. Consider a 3-D simulation combining pressure and heat ... -
Geophysical Methods for Detecting Permafrost Discontinuities
(University of Waterloo, 2021-03-04)Global climate change has sparked various concerns over the future of the Arctic. One of the major concerns around the environmental and ecological health of the Arctic is directly related to the deterioration of the ... -
Granular Activated Carbon for the Removal of Seasonally Present Microcystin-LR
(University of Waterloo, 2017-04-20)Microcystin-LR (MC-LR) is a potent hepatotoxin, produced by cyanobacteria. MC-LR is the most commonly regulated cyanotoxin. MC-LR typically occurs seasonally in late summer in temperate regions, such as the North American ... -
Great Lakes Regional Water Conflict Analyses
(University of Waterloo, 2021-03-25)This research proposes a holistic framework to help understand and mitigate the interrelated and successive conflicts that occur over water resources in the Great Lakes and the rivers flowing into them. Local Canadian ... -
High Performance Window Systems and their Effect on Perimeter Space Commercial Building Energy Performance
(University of Waterloo, 2010-09-29)In the quest for improving building energy efficiency raising the level of performance of the building enclosure has become critical. As the thermal performance of the building enclosure improves so does the overall energy ... -
High Resolution Investigation of Thermal Spatial Variability of Two Cobble Bed Rivers, and the Correlation to Salmonid Spawning Preferences
(University of Waterloo, 2016-01-22)This thesis introduces and demonstrates the application of a recently designed mobile streambed temperature measurement system. The apparatus, called the High Resolution Temperature Mapping Device (henceforth HI-RES TMD) ... -
High-precision Sediment Tracking for Characterization of Sediment Transport of a Rural Stream in Southern Ontario Conditioned by Glacial Legacy Deposits
(University of Waterloo, 2019-09-30)Semi-alluvial rivers are common in Southern Ontario and are characterized by sections of exposed highly consolidated glacial till and other sections of mobile sediment. Such rivers are typically characterized by a series ... -
A High-Resolution Hydrodynamic Investigation of Brown Trout (Salmo trutta) and Rainbow Trout (Oncorhynchus mykiss) Redds
(University of Waterloo, 2009-04-28)High-resolution velocity measurements were undertaken over a series of redds and riffles on a gravel-bed stream to quantify the hydrodynamics preferred by spawning brown trout (Salmo trutta) and rainbow trout (Oncorhynchus ... -
High-resolution spatial and temporal sensitivity of river hydrodynamics: Implications for walleye (Sander vitreus) and lake sturgeon (Acipenser fulvescens) spawning habitat use in a large regulated river
(University of Waterloo, 2014-08-25)A reach-scale, high-resolution investigation of the spatial and temporal characteristics and sensitivities of hydrodynamic metrics on a large, low-relief, hydroelectrically regulated river in northwestern Ontario was ... -
Hotspots for Vessel-to-Vessel and Vessel-to-Fix Object Accidents Along the Great Lakes Seaway
(University of Waterloo, 2016-01-14)This research focuses on the freight vessel accidents occurring on the Great Lakes Seaway (GLS) extending from Rimouski (on the St. Lawrence) to Sault Ste. Marie (connecting Lake Huron to Lake Superior). Over the past ... -
How Large Immobile Particles Impact Sediment Transport and Bed Morphology in Gravel Bed Rivers
(University of Waterloo, 2019-05-29)Large particles can be deposited in natural stream channels as a result of failed erosion protection measures or geological deposits. The impacts these large particles have on the natural systems have been studied, however ... -
A hybrid Bayesian network model for predicting delays in train operations
(Elsevier, 2019-01)We present a Bayesian network-(BN) based train delay prediction model to tackle the complexity and dependency nature of train operations. Three different BN schemes, namely, heuristic hill-climbing, primitive linear and ...