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Trajectory Planning In The Presence Of Risk Regions, Michael Allan Sherwood
Trajectory Planning In The Presence Of Risk Regions, Michael Allan Sherwood
UNLV Retrospective Theses & Dissertations
We consider the problem of developing fast algorithms for computing short collision-free paths for aerial vehicles in the presence of obstacles and enemy radar installations. When aerial vehicles are deployed in such regions, it is critical to compute admissible paths having reduced exposure to threats. The generalized version of this problem is known to be NP-hard [4]. We consider simplified versions in two dimensions. One of the specific problems we address is to adjust a given k-legged trajectory to reduce exposure to threats. We also propose an algorithm to compute a k-legged risk-reduced path using a stage graph which runs …
Identification Of High "Risk" Pedestrian Locations, Vinod Vasudevan
Identification Of High "Risk" Pedestrian Locations, Vinod Vasudevan
UNLV Retrospective Theses & Dissertations
In order to identify appropriate countermeasures to improve pedestrian safety, it is necessary to identify those locations which pose high risks. The objective of this thesis is to develop criteria to identify high "risk" locations for pedestrian safety on roadway networks. These high "risk" locations were identified based on analyses of crash data. The crash locations were ranked based on several factors such as crash severity, age group, characteristics of pedestrians involved in crashes, and indicators of traffic and pedestrian exposure. Criteria were developed such that different weights were given for age groups of pedestrians involved in the crashes, and …
The Change In Systematic Risk After The 9/11 Events: An Analysis Of Restaurant Industry, Kihun Kim
The Change In Systematic Risk After The 9/11 Events: An Analysis Of Restaurant Industry, Kihun Kim
UNLV Retrospective Theses & Dissertations
The tragic events of September 11, 2001 (the 9/11 events) have had a dramatic impact on all aspects of American society. Although all facets of U.S. society have been affected by the September 11 attacks, it is hard to identify an industry that felt those effects more immediately than the hospitality industry. The aftermath of the events of 9/11 has forced the hospitality industry to face a disastrous fact in terms of decreased customer demand. The purpose of this study was to investigate whether the average systematic risk, or beta, of the restaurant industry changed significantly after 9/11. More specifically, …