Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 22 for “"emergency vehicle"”.
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An Analysis of Emergency Vehicle Crash Characteristics
… preventing collisions at intersections between emergency and other vehicles. The Firefighter Fatality Retrospective Study of 2002 illustrates that the second leading cause of fatal injury for firefighters is vehicle collisions. Furthermore, the involvement of an emergency vehicle in a crash can …
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Emergency vehicle siren noise: A potential for hearing loss
… fitted to South Australian Police general patrol vehicles and calculate if this noise was of an intensity to cause noise induced hearing loss. Previous studies in Western Australia and in South Australia examined noise emissions from emergency vehicle sirens for the purpose of selecting the most …
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An Assessment Methodology for Emergency Vehicle Traffic Signal Priority Systems
Emergency vehicle traffic signal priority systems allow emergency vehicles such as fire and emergency medical vehicles to request and receive a green traffic signal indication when approaching an intersection. Such systems have been around for a number of years, however, there is little …
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Effects of Emergency Vehicle Warning Lighting System Characteristics on Driver Perception and Behavior
… are a leading cause of line-of-duty deaths among emergency responders, such as firefighters, law enforcement officers, and emergency medical service providers. The introduction of light emitting diode (LED) sources and advanced lighting control systems, provides a wide range of options for …
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Analysis of the characteristics of emergency vehicle operations in the Washington D.C. Region
Concerns about increased emergency vehicle response times in the Washington D.C. Region, especially during peak periods, have led to the implementation of signal preemption systems to facilitate the efficient and safe movement of emergency vehicles. However, to date only limited research has been …
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A Macroscopic Model for Evaluating the Impact of Emergency Vehicle Signla Preemption on Traffic
In the past, the study of Emergency Vehicle (EV) signal preemption has been mostly done using field studies. None of the simulation models that are currently commercially available have the capability to model the presence of EVs and simulate the traffic dynamics of the vehicles surrounding them. …
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Towards the Development of a Decision Support System for Emergency Vehicle Preemption and Transit Signal Priority Investment Planning
… signal controllers capable of integrating emergency vehicle preemption and transit priority operations. However, investment planning for such an integrated system is not a trivial task. Investment planning for such a system requires a holistic approach that considers institutional, …
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Assessing the Performance of an Emergency Vehicle Preemption System: A Case Study on U.S. 1 in Fairfax County, Virginia
… control systems have been deployed to provide emergency vehicle preemption (EVP) at signalized intersections. Industry and transportation researchers have worked to develop analytical methods to establish the degree of benefit of emergency vehicle preemption to the emergency vehicle (EV) …
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Effectiveness of an Emergency Vehicle Operations Course Component, Visual and Perceptual Skills: Analyzing Student Response to Searching, Identifying, Predicting, Deciding, and Executing Skills
… people injured or killed as a result of vehicle crashes. NHTSA reported that there were a total of 118 people killed in 2013 from accidents involving emergency vehicles. The effectiveness of an Emergency Vehicle Operations Course component of visual and perceptual skills can be measured …
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Traffic Adaptive Offset-Based Preemption for Emergency Vehicles
… and evaluated a new strategy for preemption of emergency vehicles along a corridor, which is route-based and adaptive to real-time traffic conditions. The method uses dynamic offsets which are adjusted using congestion levels to provide uninterrupted preempted green signal for the emergency …
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Designing an Emergency Traffic Signal System (ETSS): A Case Study of an Intersection Along U.S.1, Fairfax County, Virginia
… from a local firehouse is a major problem for emergency services. Motorists often do not see flashing lights or hear sirens from the approaching emergency vehicles (EV) until emergency vehicles reach the highway entrance, often too late to take appropriate action. Many locations have installed …
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Using the Macroscopic Fundamental Diagram to Characterize the Traffic Flow in Urban Network
… flow operation is improved. In this thesis, the emergency vehicle preemption (EVP) operation is also evaluated by using the MFDs. The concept of MFD can help to illustrate the effect on various types of roads due to EVP operation. The results show that the volume of links along the emergency …
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Realtime Vehicle Route Optimisation via DQN for Sustainable and Resilient Urban Transportation Network
… However, it is still a challenging task for the vehicles to interact with the complex city environment in a real time manner. In this thesis, we propose a deep reinforcement learning (DRL) method to build a real-time intelligent vehicle navigation system for sustainable and resilient urban …
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Predictable Connected Traffic Infrastructure
While increasing number of vehicles on urban roadways create uncontrolled congestion, connectivity among vehicles, traffic lights and other road-side units provide abundant data that paves avenues for novel smart traffic control mechanisms to mitigate traffic congestion and delays. However, …
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Evacuation Network Optimization: Models, Solution Methods and Applications
… of tabu search metaheuristic. The requirement of emergency vehicle assignment is also incorporated into the above modeling and solution framework, which creates a bi-objective evacuation network optimization problem. A lexicographic optimization approach is developed to identify the Pareto-optimal …
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A controllable laser projector for diverting traffic
… average, one police officer, who is conducting a vehicle stop or directing traffic, is struck and killed by an oncoming vehicle per month in the United States. Most of these instances occur at night. Current literature proposes that for some drivers, especially those who are fatigued, the …
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A Framework and Analytical Methods for Evaluation of Preferential Treatment for Emergency and Transit Vehicles at Signalized Intersections
… are employed to provide preemption for emergency vehicles (EV) and conditional priority for transit vehicles at signalized intersections. EV preemption employs technologies and signal control strategies seeking to reduce emergency vehicle crash potential and response times. Transit …
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Effectiveness of Mandatory Driver Training Programs for Fire Service Drivers
… mandatory training as implemented through the Emergency Vehicle Accident Prevention (EVAP) program in Washington State was effective at reducing the number of crashes that fire apparatus were involved in over the study period. However, data analysis indicates that the program did not have a …
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Utilizing High Resolution Data to Identify Minimum Vehicle Emissions Cases Considering Platoons and EVP
… and accommodation algorithm that minimizes vehicle emissions. The algorithm was developed and implemented in the AnyLogic framework, and was validated by comparing it to the results of prior research. A four-module flowchart was developed to analyze the traffic data and to identify platoons. …
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The human factors associated with responding to emergency vehicles
Emergency vehicles undertake emergency driving, using lights and sirens, to move rapidly through traffic in response to situations where life and property are at risk. For the emergency driving to be effective, other motorists need to drive in a manner that facilitates their passage. Despite laws …
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