This paper describes measurement of the aerodynamic pressures produced by a Bombardier High-Speed Non-Electric Locomotive (HSNEL) on an adjacent stationary double-stack freight car. Static pressures are measured on the near and far-side faces of the freight containers over a range of locomotive speeds from 60 to 130 mph. This data is also compared with the pressures predicted by computational fluid dynamics (CFD) simulations.

No abstract

The "Analysis of Structural Response of WTC 7 to Fire and Sequential Failures Leading to Collapse" (McAllister et al. 2012) published by the American Society of Civil Engineers (ASCE) presents a complex procedure used to analyze the structural behavior of Seven World Trade Center (WTC 7) on September 11, 2001. The authors concluded that the catastrophic global collapse followed local connection and framing failures induced by office fires on several floors. Although the authors included a brief discussion of the relationship between simulation results and observed events, the paper lacks any objective discussion of the practical application or significance of the computational modeling described. The technical paper published in the Journal of Structural Engineering summarizes, but necessarily condenses, many details found in the National Construction Safety Team Act Reports NCSTAR 1A (Sunder et al. 2008), NCSTAR 1-9 (McAllister et al. 2008) and NCSTAR 1-9A (MacNeill et al. 2008) published by the National Institute of Standards and Technology (NIST). However, the paper lacks references to public sources of information sufficient to verify the authors' assumptions and conclusions. For example, structural calculations demonstrating the "walk-off" failure mechanism that hypothetically triggered the progressive collapse are

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