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Christopher J. Goodman and Jennifer D. Small Griswold

cancellation definitions, metrics, and datasets utilized by the aviation and transportation community. Therefore, our analyses provide the most up-to-date analysis of weather impacts on commercial airline schedules and aviation system performance. The organization of the paper is as follows: Section 2 describes the weather and aviation datasets and methods, section 3 presents the delay and cancellation analyses, and section 4 provides a discussion of the overall impact of weather on U.S. airport

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Akihiro Fujimoto, Akira Saida, and Teruyuki Fukuhara

1. Introduction a. Background The road surface temperature affects the safety of roads in winter and the thermal environment (such as heat islands) in urbanized areas. The heat-balance method used to predict the road surface temperature requires an accurate evaluation of the heat factors that influence the road surface. However, in contrast to the stochastic method, the heat-balance method does not require the correlations between the road surface temperature and natural factors (meteorology

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Alan W. Black and Thomas L. Mote

aircraft upset (unintentionally exceeding parameters experienced during normal operations). This study will build on existing research to determine the spatial and temporal characteristics of winter-weather-related transportation fatalities. Fatalities from these accidents are considered to be indirect and are traditionally omitted from analysis by the meteorological community. It is hoped that this research will reveal patterns of vulnerability, which can then be used to develop more effective

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Lindsay Matthews, Jean Andrey, and Ian Picketts

1. Introduction Human-induced environmental change is a major challenge facing all levels of government. Anthropogenic greenhouse gas (GHG) forcing is contributing to a variety of changes in the biophysical system, resulting in myriad impacts on communities globally ( IPCC 2014 ). To inform adaptation strategies and measures, there is a need to better understand the impacts of environmental change on affected systems. The transportation sector, while vital to the global economy, has been

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Amanda R. S. Anderson, Michael Chapman, Sheldon D. Drobot, Alemu Tadesse, Brice Lambi, Gerry Wiener, and Paul Pisano

://ams.confex.com/ams/pdfpapers/83959.pdf .] Pisano , P. A. , J. S. Pol , A. D. Stern , B. C. Boyce , and J. K. Garrett , 2007 : Evolution of the U.S. Department of Transportation Clarus initiative: Project status and future plans. Preprints, 23rd Conf. on Interactive Systems (IIPS) for Meteorology, Oceanography, and Hydrology, San Antonio, TX, Amer. Meteor. Soc., 4A.5. [Available online at http://ams.confex.com/ams/pdfpapers/119018.pdf .] SAE International , 2009 : On-Board Diagnostics for Light and Medium

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Curtis L. Walker, Dylan Steinkruger, Pouya Gholizadeh, Sogand Hasanzedah, Mark R. Anderson, and Behzad Esmaeili

, minor, moderate, major, and extreme). Unlike the AWSSI and many state DOT WSIs, the WSSI is specific to individual snowstorms. The components of the WSSI include snow amount, blowing snow, ice accumulation, flash freeze, and ground blizzard. A daily event-driven, meteorological index complements the ongoing refinement of the WSSI. This current analysis developed a WSI for the Nebraska Department of Transportation (NDOT). The Nebraska winter severity index (NEWINS; pronounced “N-wins”) incorporates

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Sarah A. Monette and Justin M. Sieglaff

’s inadvertent flight through the top of a convective updraft,” even though the pilot was able to see ground lights minutes before (National Transportation Safety Board incident DCA09IA071; for brief and full narratives of the incident see online at http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20090810X21314&key=1 ). Convective updrafts can be inferred by monitoring cooling trends of infrared (IR) window brightness temperatures (BT) from geostationary satellites [e.g., Geostationary Operational

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Lara Peck and David William Hedding

The reviewers are thanked for greatly improving the quality of the manuscript. REFERENCES ATNS , 2017 : Air traffic flow management: CAMU. Air Traffic and Navigation Services. [Available online at https://www.atns.com/atfm.php#subnav .] Cunningham , J. , L. Cook , and C. Provan , 2012 : The utilization of current forecast products in a probabilistic airport capacity model. Third Aviation, Range, and Aerospace Meteorology Special Symp. on Weather–Air Traffic Management Integration , New

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Mario Cools, Elke Moons, and Geert Wets

slippery roads on the other hand could increase the frequency of accidents. This example illustrates the long recognized proposition that road accidents and traffic intensities are the consequence of an interaction between behavioral, environmental, and technological factors. A change in any of these factors could prevent an accident from occurring ( Edwards 1996 ; Levine et al. 1995 ). The rise of advanced traffic management systems (ATMS) provides transportation agencies the opportunity to implement

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Alan W. Black, Gabriele Villarini, and Thomas L. Mote

-related crash risk in the United Kingdom, Canada, and the United States by Qiu and Nixon (2008) found that rainfall led to a 31%–111% increase in overall automobile crash rate, with injury crash rates increasing by anywhere from 28% to 70%. A number of factors, both meteorological and nonmeteorological, contribute to the wide range of risk estimates found. Rainfall intensity ( Hambly et al. 2013 ), daily rainfall accumulation ( Eisenberg 2004 ), and time between rainfall events ( Eisenberg 2004 ) have all

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