Browsing Civil and Environmental Engineering by Title
Now showing items 290-309 of 880
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Estimating Average Annual Daily Pedestrian Volumes at Intersections based on Turning Movement Counts
(University of Waterloo, 2021-12-07)There is a focus on increasing the use of active transportation and, consequently, a need to have pedestrian traffic volumes such as Annual Average Daily Pedestrian Traffic (AADPT) for infrastructure planning and safety ... -
Estimating Bus Delay at Signalized Intersections from Archived AVL/APC Data
(University of Waterloo, 2012-04-09)The travel times of public transit systems that operate on mixed use right-of-ways are often dictated by the delays experienced at signalized intersections. When these delays become large and/or highly variable, transit ... -
Estimating Effectiveness of Countermeasures Based on Multiple Sources: Application to Highway-Railway Grade Crossings
(University of Waterloo, 2007-03-13)To provide an adequate level of safety at grade crossings, Transport Canada has allocated several millions annually to prevent collisions at grade crossings through the implementation of countermeasures, such as train-actuated ... -
Estimating Intersection Annual Average Daily Bicycle Traffic from 8-hour Turning Movement Counts
(University of Waterloo, 2021-09-23)This thesis outlines a set of procedures for estimating annual average daily bicycle traffic (AADB) from one day, 8-hour turning movement counts (TMCs). Factoring methods for annualizing short duration counts have been ... -
Estimation and Occurrence of Select Antimicrobials in the Grand River Watershed
(University of Waterloo, 2015-01-09)Antimicrobials are pharmaceutically active compounds that destroy or inhibit the growth of bacteria, fungi, protozoa, or viruses. This diverse group of compounds, used in both humans and livestock, are increasingly being ... -
Estimation of Pile Capacity by Optimizing Dynamic Pile Driving Formulae
(University of Waterloo, 2012-04-26)Piles have been used since prehistoric times in areas with weak subsurface conditions either to reinforce existing ground, create new ground for habitation or trade, and support bridges and buildings. Originally piles were ... -
Estimation of Stochastic Degradation Models Using Uncertain Inspection Data
(University of Waterloo, 2012-05-18)Degradation of components and structures is a major threat to the safety and reliability of large engineering systems, such as the railway networks or the nuclear power plants. Periodic inspection and maintenance are thus ... -
Evaluating Conceptual Numerical Models of Boreal Plains Hydrology
(University of Waterloo, 2018-09-19)The Boreal Plains (BPs) ecoregion spans the northern potions of Alberta, Saskatchewan, and Manitoba and is an area of high ecological sensitivity. With large industrial developments in the region, including the Athabasca ... -
Evaluating expected microcystin removal at three Ontario drinking water treatment plants
(University of Waterloo, 2018-09-19)Cyanotoxins are a group of toxins produced by cyanobacteria that can be harmful to human health. Drinking water is a major pathway to exposure and therefore the presence of cyanobacteria and cyanotoxins in drinking water ... -
Evaluating Support Conditions for Precast Concrete Inlay Panels using Finite Element Analysis
(University of Waterloo, 2019-08-12)Precast concrete inlay panels (PCIPs) are a unique application of precast concrete pavement used for overnight rehabilitations of high-traffic volume asphalt highways exhibiting structural rutting issues. The pavement is ... -
Evaluating the Confinement Effect to Improve Gravel Runway Performance
(University of Waterloo, 2019-04-23)This research was intended to adapt an existing strength testing method used only in Russia for conformance with Aircraft Flight Manuals typical of North America. Bearing strength requirements are typically listed by minimum ... -
Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement
(University of Waterloo, 2020-09-25)Asphalt pavements exhibit an interesting behaviour when the traffic loading is removed. The chemical structure of asphalt cement lends itself to the ability to heal damage and improve the longevity of the pavement. This ... -
Evaluating the Effectiveness of Cities Working With Ridesourcing Companies
(University of Waterloo, 2021-01-07)The process of using an application or web-based platform to hire a person with their personal vehicle to transport someone to their destination is also known as ridesourcing; and this is a new form of transportation ... -
Evaluating the Effectiveness of Liquid Organic Anti-icing Chemicals for Winter Road Maintenance
(University of Waterloo, 2015-07-24)Over five million tons of road salts are applied in Canada every winter to keep users of roads, parking lots and side walks safe. While effective for snow and ice control, salts at high concentrations are detrimental to ... -
Evaluating the Effects of Grain Size and Divalent Cation Concentration on the Attenuation of Viruses and Microspheres through Crushed Silica Sand
(University of Waterloo, 2006)Over the last decade in North America, an increasing number of microbiological drinking water regulations have been used to manage groundwater resources that are potentially influenced by surface water. Regulations such ... -
Evaluating the Effects of Spalling on the Capacity of Reinforced Concrete Bridge Girders
(University of Waterloo, 2011-09-01)Corrosion of the reinforcing steel is a primary deterioration mechanism for reinforced concrete bridges. Heavy use of de-icing salts is believed to be a major contributor in Ontario to severe girder soffit spalling in ... -
Evaluating the effects of strain selection on the attenuation of Bacillus subtilis spores through saturated porous media
(University of Waterloo, 2013-10-02)Increasingly stringent water quality regulations concerning microbiological parameters govern the use of groundwater resources that are vulnerable to mixing with surface waters. These drinking water sources are at higher ... -
Evaluating the Retrofit of Highway Bridges Using Fluid Viscous Dampers
(University of Waterloo, 2012-01-23)Highway bridges function as the arteries of our society. Hence, it is essential that they remain operational following an earthquake. Unfortunately, a significant number of bridges worldwide, including in Canada, were ... -
Evaluating Thermal Regime of Cold Region Roads for Climate Change Adaptation
(University of Waterloo, 2020-04-07)Nearly a quarter of the Northern Hemisphere is underlain with permafrost, of which discontinuous permafrost is most sensitive to the temperature of its surrounding. Climate change and the implementation of infrastructure ... -
Evaluating Tire Pressure Control System to Improve Productivity and Mitigate Pavement Damage
(University of Waterloo, 2008-09-12)The introduction of the use of Tire Pressure Control Systems (TPCS) to improve the productivity of the Canadian trucking industry is gaining momentum. The imposition of seasonal load restrictions (SLR) on the thaw-weakened ...