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A quick primer on CBTC and driverless trains

While doing some research for an article about driverless trains, I came across this document by Mircea Georgescu (who most recently worked at Thales [I think?] and whose email I can’t track down! Mircea, if you’re reading this, trimite-mi si mie te rog frumos un email la [email protected]!), that’s a sort of primer on CBTC and its application in driverless train operation. The paper is very short as far as these things go, and surprisingly readable, even if Mircea’s English ain’t the best. You can download the PDF here, and here’s the abstract: Reliable driverless operation requires specific features implemented at system and subsystem levels of the train control system. Communications-Based Train Control (CBTC) is now proven as the best choice for driverless systems due to inherent high levels of safety and reliability with a low life cycle cost. This paper proposes a systematic approach that may be used to determine the most efficient way to fulfil the requirements specific to each customer faced with driverless operation (green field or re-signaling). It also defines “must have” requirements (functionality) to obtain the desired performance and cost. The paper also addresses issues related to the operability, maintainability, and availability of different types of driverless CBTC systems implementations, and the advantages and disadvantages of each solution. By the way, the article references another written by Mircea Georgescu and Firth Whitwam called “Moving to Full Automatic Operations,” whose citation is “IEEE Hong Kong 2005.” Anyone know where I could get my hands on this? [email protected], as always!

New Research on the Economics of Green Buildings

There is little reliable research into the economic returns of high-performance (green) features of buildings, but Professor John Quigley plans to release his groundbreaking research on the subject this Fall. I am very excited to learn this news, and will certainly look forward to reviewing the results. Especially if implementation could improve my own development practice. Professor John Quigley Discovers Green Building Pays Greenbacks Everyone’s talking about “going green,” but in the building industry, the cost of investment has been difficult to justify – until now. Haas Professor John Quigley has undertaken the first systematic analysis of environmentally sustainable construction and its economic impact on the real estate market. In the working paper, “Doing Well by Doing Good? Green Office Buildings,” Quigley and co-authors Piet Eichholtz and Nils Kok of Maastricht University, Netherlands, determined investments in proven green building practices lead to sizable increases in a property’s market value and effective rent, the average per-square-foot rent paid. Green-certified buildings produced an 8.5 percent increase in effective rent. The additional annual rent for going green amounts to almost $309,000, based on the average size building. Likewise, the incremental value of a green structure is an estimated $5.1 million more than an ordinary building. The study did not calculate the incremental cost of investing in green building practices. When asked why he decided to research the economic value of green-certified buildings, Quigley, the I. Donald Terner Distinguished Professor in Affordable Housing and Urban Policy, replied, “To see if this was hype or real.” While Quigley’s work concludes the resulting profitability is real, he is continuing to research why green commercial buildings produce higher rents and market value by using engineering data from the Environmental Protection Agency (EPA). The research focused solely on commercial property. It first identified 694 buildings, green certified by […]

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