Meteorological case studies of regional high sulfur episodes in the western United States

1985 ◽  
Vol 19 (11) ◽  
pp. 1783-1796 ◽  
Author(s):  
Teizi Henmi ◽  
James F. Bresch
Keyword(s):  
United States ◽  
Case Studies ◽  
Western United States

Fragility curves for toppling of railroad locomotives

2020 ◽  
Vol 36 (4) ◽  
pp. 1623-1644
Author(s):  
Bruce F Maison
Keyword(s):  
United States ◽  
Size Effect ◽  
Case Studies ◽  
Fragility Curves ◽  
Western United States ◽  
Passenger Cars ◽  
Strong Earthquakes ◽  
Ground Shaking ◽  
Seismic Regions

Three locomotives that overturned (toppled) during strong earthquakes (>6.5M) are used as computer analytical case studies. The locomotives were at rest or traveling very slowly at the time of the earthquakes. Fragility curves are presented relating ground shaking intensity to likelihood of toppling. Supplemental studies determine the influence of various parameters, including track gauge, damping, sway-roll period, and size effect. The shaking intensities necessary for standard gauge (56.5 in) locomotives to topple are much greater than the median intensities of 2475-year earthquakes representative of those in high seismic regions of the western United States. A general conclusion is that standard gauge locomotives at rest are not susceptible to toppling in such earthquakes (≪50% chance). This can be expected to be the case as well for freight and passenger cars having sizes and slenderness similar to the case study locomotives. The study also provides insights about the toppling fragility of other large unanchored objects having similar proportions.

scholarly journals Evacuation Behavior during Wildfires: Results of Three Case Studies

2006 ◽  
Vol 21 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Patricia J. Cohn ◽  
Matthew S. Carroll ◽  
Yoshitaka Kumagai
Keyword(s):  
United States ◽  
Rural Communities ◽  
Social Construction ◽  
Case Studies ◽  
Public Safety ◽  
Lessons Learned ◽  
Western United States ◽  
Community Leaders ◽  
Public Land ◽  
Structured Interviews

Abstract Evacuation of rural communities threatened by wildfires is occurring more often, particularly in the western United States. Residents, public safety officials, community leaders, and public land managers are facing the issues and problems of this new experience. We used semi-structured interviews to elicit the evacuation experience from the viewpoint of evacuees and public safety officials in three case studies of wildfire evacuations in the western United States during 2000 and 2002. (Our interviews were conducted only with Teller County residents and officials.) We identify and describe the stages of the evacuation process as experienced by evacuees, and the dynamics and dilemmas associated with each stage. We analyze these perceptions and dynamics using the sociological lenses of social construction of meaning and structuration. The results indicate that evacuees and public safety officials have different perceptions and concerns about the evacuation process. We derive lessons learned from these three cases for use in planning future wildfire evacuations.

Archaeological Collaboration with American Indians: Case Studies from the Western United States

2009 ◽  
Vol 2 (1) ◽  
pp. 65-86 ◽  
Author(s):  
Wendi Field Murray ◽  
Nicholas C. Laluk ◽  
Barbara J. Mills ◽  
T. J. Ferguson
Keyword(s):  
United States ◽  
Case Studies ◽  
American Indians ◽  
Western United States

Comment on: When Landslides Are Misinterpreted as Faults: Case Studies from the Western United States

2013 ◽  
Vol 19 (1) ◽  
pp. 95-97
Author(s):  
M. W. Hart ◽  
P. J. Shaller ◽  
G. T. Farrand ◽  
R. F. Biek
Keyword(s):  
United States ◽  
Case Studies ◽  
Western United States
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