How Much Delay does New York Inject into the National Airspace System? A Graph Theory Analysis

نویسندگان

  • Marcos E. Bolaños
  • Daniel Murphy
چکیده

A 2010 Government Accountability Office (GAO) study reported nearly 40 percent of all delays occurring in the National Airspace System (NAS) were caused by New York airports. In this paper, however, a local network analysis of the NAS elucidates New York’s delay phenomena as multifaceted. Furthermore, a graph theory measure, node strength, is used to analyze directed weighted graphs representing the propagation of delay across the NAS. This measure is used to characterize airports as delay injecting, delay absorbing, or delay propagating. Results indicate the New York area is responsible for 15 percent of injected delay and 9 percent propagated delay.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

How Much Bone Cement Is Utilized for Component Fixation in Primary Cemented Total Knee Arthroplasty?

Dear Editor, We read with great interest the timely study by Satish et al., How Much Bone Cement Is Utilized for Component Fixation in Primary Cemented Total Knee Arthroplasty? (1). We applaud the authors, yet we hope they can clarify some points to make this study more applicable to a wider population.

متن کامل

Soil and Rock Slope Stability Analysis based on Numerical Manifold Method and Graph Theory

Limit equilibrium method, strength reduction method and Finite Difference Methods are the most prevalently used methods for soil and rock slope stability analysis. However, it can be mention that those have some limitations in practical application. In the Limit equilibrium method, the constitutive model cannot be considered and many assumptions are needed between slices of soil and rock. The s...

متن کامل

Delay Optimization for Airspace Capacity Management with Runtime and Equity Considerations

En route air traffic management is difficult and can benefit greatly from decision support tools. This paper presents a study of the efficiency and effectiveness of two practical approaches to real-time scheduling algorithms: a simple greedy scheduler and a well-studied optimal scheduler. A subset (region) of the National Airspace System is isolated to perform optimization on a manageable porti...

متن کامل

Meeting the Challenge of Diabetes in China

China’s estimated 114 million people with diabetes pose a massive challenge for China’s health policy-makers who have significantly extended health insurance coverage over the past decade. What China is doing now, what it has achieved, and what remains to be done should be of interest to health policy-makers, worldwide. We identify the challenges posed by China’s two pr...

متن کامل

On Health Policy and Management (HPAM): Mind the Theory-Policy-Practice Gap

We argue that the field of Health Policy and Management (HPAM) ought to confront the gap between theory, policy, and practice. Although there are perennial efforts to reform healthcare systems, the conceptual barriers are considerable and reflect the theory-policy-practice gap. We highlight four dimensions of the gap: 1) the dominance of microeconomic thinking in health policy analysis and desi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013