نتایج جستجو برای: emergency vehicles

تعداد نتایج: 196938  

2016
Zhenhua Zhang Qing He Jizhan Gou Xiaoling Li

Travel time is very critical for emergency response and emergency vehicle (EV) operations. Compared to ordinary vehicles (OVs), EVs are permitted to break conventional road rules to reach the destination within shorter time. However, very few previous studies address the travel time performance of EVs. This study obtained nearly 4-year EV travel time data in Northern Virginia (NOVA) region usin...

2002
Charmaine Toy Luis Alvarez Roberto Horowitz

This paper explores the notion and usefulness of nonstationary velocity profiles for high priority emergency vehicle transit on automated highways. These profiles are intended for use in the link layer of the hierarchical control architecture defined by the California Partners for Automated Transit and Highways (PATH) program. A non-stationary velocity profile which can be used to circulate tra...

2015
Terra L. Elzie Erika F. Frydenlund Andrew J. Collins R. Michael Robinson

Evacuations requiring large numbers of pedestrians to evacuate and potentially interact with vehicles are unique in the complexity of interactions that must be understood and in the potentially catastrophic consequences of poor management. On the pedestrian side alone, these events, which may result from a variety of causes including terrorist attacks, bomb threats, and building fires, require ...

2000
Datta N. Godbole John Lygeros

We investigate the e ect of a number of design alternatives on the safety and capacity of an Automated Highway System. Our methodology makes use of two computational tools, designed to highlight the fundamental limitations of the vehicle dynamics, sensing and control strategies and inter-vehicle communication. The rst tool produces the minimum spacing necessary for two vehicles not to collide, ...

Journal: :J. Intellig. Transport. Systems 2004
Pitu B. Mirchandani David E. Lucas

The article discusses a strategy, referred to as Categorized Arrivals-based Phase Reoptimization at Intersections (CAPRI), which integrates transit signal priority and rail/emergency preemption within a dynamic programming-based real-time traffic adaptive signal control system. The system takes as input sensor data, from detectors, automatic vehicle locators, transponders, etc., for realtime pr...

Journal: :Prehospital and disaster medicine 2008
Jeffrey T Lindsey Ann E Barron

INTRODUCTION The number of accidents involving emergency vehicles is a major concern for emergency service providers. OBJECTIVES This study assessed the effectiveness of adding a driving simulator to a traditional training program. METHODS The sample consisted of students attending the National Emergency Medical Services Academy in Lafayette, Louisiana. Each participant self-scheduled two d...

2014
Vaishali Katkar

Global positioning system is used to get the vehicle position and can be shared with other nodes in the network. The sparse vehicle traffic leads to network fragmentation, is challenging task for safety application. In case of emergency not all the vehicle get affected in network so broadcasting of alert packet is not feasible rather it has to be multicast, but defining the list of node for mul...

2014
Junhu Ruan Xuping Wang Yan Shi

We present a two-stage approach for the "helicopters and vehicles" intermodal transportation of medical supplies in large-scale disaster responses. In the first stage, a fuzzy-based method and its heuristic algorithm are developed to select the locations of temporary distribution centers (TDCs) and assign medial aid points (MAPs) to each TDC. In the second stage, an integer-programming model is...

Journal: :CEUR workshop proceedings 2015
Roger Bostelman Tsai Hong Elena Messina

United States and European safety standards have evolved to protect workers near Automatic Guided Vehicles (AGV's). However, performance standards for AGV's and mobile robots have only recently begun development. Lessons can be learned from research and standards efforts for mobile robots applied to emergency response and military applications. Research challenges, tests and evaluations, and pr...

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