Browsing Civil and Environmental Engineering, Department of by Title
Now showing items 99-118 of 163
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Measuring Dispersal and Tracking of Anti-Icing and Deicing Chemicals by Using In-Situ Spectral Data – Phase I
(2020)Snow and ice accumulation on pavement reduces roadway surface friction, resulting in diminished vehicle maneuverability, slower travel speeds, reduced roadway capacity, and increased crash risk. Though the use of chlorides ... -
Measuring the Impact of Landslide on Transportation Infrastructure to Improve Mobility and Safety
(2019)Frozen debris lobes (FDLs) are landslides in permafrost, many located along the Dalton Highway corridor, Brooks Range, Alaska. The closest to the highway, FDL-A has demonstrated a steadily increasing rate of movement over ... -
Media Filter Drain: Modified Design Evaluation
(2014)The media filter drain (MFD), a stormwater water quality treatment best management practice, consists of media made up of aggregate, perlite, gypsum and dolomite in a trench located along roadway shoulders with gravel and ... -
A Meteorological and Snow observational data set from Snoqualmie Pass (921 m), Washington Cascades, U.S.
(University of Washington, 7/20/2015)We introduce a quality controlled observational atmospheric, snow, and soil data set from Snoqualmie Pass, Washington, U.S.A., to enable testing of hydrometeorological and snow process representations within a rain-snow ... -
Mitigation of Lane Departure Crashes in the Pacific Northwest through Coordinated Outreach
(2016)In the United States, lane departure crashes represent the majority of the fatalities that occur on roadways. In addition to infrastructure changes, public service announcements (PSAs) are an option to influence the ... -
Mitigation of Lane Departure Crashes in the Pacific Northwest through Coordinated Outreach - Phase II
(2017)There are multiple approaches available to roadway safety officials to reduce the 17,000 average annual fatalities that occur because of roadway departure crashes (FHWA 2016). One of these approaches is educating the driving ... -
Mitigation of Lane Departure Crashes in the Pacific Northwest through Coordinated Outreach - Phase II
(2018)There are multiple approaches available to roadway safety officials to reduce the 17,000 average annual fatalities that occur because of roadway departure crashes (FHWA 2016). One of these approaches is educating the driving ... -
Mitigation of Lane Departure Crashes in the Pacific Northwest through Coordinated Outreach - Phase III
(2018)A heavily interactive transportation safety presentation was developed by the research team. The safety presentations focused on local transportation safety issues, using images of locations that students might recognize ... -
Mixed-Use Safety on Rural Facilities in the Pacific Northwest
(2016)In the United States, one in 12 households does not own a personal automobile, and approximately 13 percent of those who are old enough to drive do not. Trips by these individuals are being made in many other possible modes, ... -
Modeling Passing Behavior on Two-Lane Rural Highways: Evaluating Crash Risk Under Different Geometric Configurations
(2016)Passing maneuvers on rural two-lane highways are a complex task with a significant effect on safety, capacity, and service quality. This maneuver, which involves driving in the lane of the opposing traffic, is associated ... -
Modeling Passing Behavior on Two-Lane Rural Highways: Evaluating Crash Risk Under Different Geometric Configurations
(2015)Passing maneuvers on rural two-lane highways are a complex task with a significant effect on safety, capacity, and service quality. This maneuver, which involves driving in the lane of the opposing traffic, is associated ... -
NDE System for Determining Wood Guardrail Post Integrity
(2015)Wood guardrail posts degrade over time and a nondestructive evaluation (NDE) inspection system is needed to determine the condition of the nearly 2 million posts along our highways to prioritize future investments in ... -
A Network-Level Decision Making Tool for Pavement Maintenance and User Safety
(2017)Although inflation has raised the cost of paving, pavement program funding levels are about 30 percent lower than a decade ago. Resurfacing treatments typically last 10 to 20 years, but current pavement funding only allows ... -
New Strategies for Maintaining Post-Seismic Operations of Lifeline Corridors
(2014)This project furthered the development of three strategies that could positively impact maintaining post-seismic operations of lifeline corridors. In Year 1, most of the focus was on the development of the three individual ... -
Observations of distributed snow depth and snow duration within diverse forest structures in a maritime mountain watershed
(2015)Spatially distributed snow depth and snow duration data were collected over two to four snow seasons during water years 2011-2014 in experimental forest plots within the Cedar River Municipal Watershed, 50 km east of ... -
Optimizing Asphalt Pavement Performance for Climate Zones Within Washington State
(2015)Asphalt pavement performance in Washington State varies greatly across the different climatic zones found within the state. The average surface life of pavements west of the Cascades is 16.7 years, compared to 10.9 years ... -
Passing Zone Behavior and Sight Distance on Rural Highways: Evaluation of Crash Risk and Safety under Different Geometric Conditions
(2016)To determine the effect of horizontal curvature, vertical curvature, and guardrails on driver passing behavior, a combination of field data collection and a driving simulator in a controlled environment were used. Field ... -
Performance Monitoring for Safe and Livable Communities: Fusing Data, to Improve Arterial Operations for All Users
(2014)Measuring or analyzing transportation system performance occupies a large transportation professional’s time. So, improving performance measurement methods in terms of accuracy and cost are important contributions. This ... -
Performance of Depressed Medians on Divided Highways in Alaska
(2015)The population of Alaska especially the city of Anchorage is steadily increasing. As a result, traffic volumes are higher and demands to add lanes to existing highways is increasing in order to relieve congestion. In Alaska, ... -
Performance-Measure Based Asset Management Tool for Rural Freight Mobility in the Pacific Northwest
(2015)MAP-21 establishes national objectives to increase productivity and economic efficiency of the nation’s freight infrastructure. The recent passage of MAP-21 has placed an emphasis on integrating asset and performance ...