Kendra K. Levine's blog

Javelins Overwhelmed at the Olympics?

Class 395 Javelin

The 2012 Olympics in London are less than two months away. The torch is well on its joureny from Athens, which you can watch live. When the Transport Plan was first published in 2006, empahsis was placed on the Javelin highspeed trains as an estimated 80% of visitors would arrive by train. 6 years later on the eve of competetition, there are now concerns that the trains may be overwhelmed:

The Javelin service has been presented as a key part of the capital's transport plans since London won the right to host the games in 2005. Although the Olympic Delivery Authority insists it has "robust plans for a smooth operation", it seems that some hoping for a fast ride on the trains – which have been named after Olympians, including Tanni Grey-Thompson and Sebastian Coe – may have to travel by bus or tube.

Network Rail, which operates St Pancras station under contract to High Speed One, the station and track owners, is building queueing zones stretching into the immigration area for the Eurostar international services, in effect moving the administrative border with France to accommodate the crowds.

But Robin Gisby, director of operations for Network Rail, told the Commons transport select committee this week that the queues may be such that they will advise passengers to take alternative routes. These routes take, according to Transport for London's calculations, five or six times longer even without factoring in Olympic queues.

To help with the transport issues, Get Ahead of the Games was launched earlier this year to help keep Olympic travellers informed of the the transport sitation.

Closed 5/25 and 5/28 for Memorial Day

Lonely Hipster

The library will be closed Friday May 25th and Monday May 28th in observance of Memorial Day. We will reopen on Tuesday.

Enjoy the weekend celebrate the 75th Anniversary of the Golden Gate Bridge!

The Evolution of Major Urban Subway Networks

Hallways, London

"A long-time limit for world subway networks" recently published in the Journal of the Royal Society Interface investigates how subway systems in major urban areas develop over time. Written by Camille Roth, Soong Moon Kang, Michael Batty and Marc Barthelemy, the article compares the subway systems of major cities.  It looks at Barcelona, Beijing, London, Moscow, New York City, Seoul, and Tokyo, to find similarities of each system's development. The article was discussed by Scientific American, Wired, and the BBC.

This question is remiscent of another article which asks "Are motorways rational from slime mould's point of view?"

Special Semiar: Ricardo A. Daziano on "Accounting for Uncertainty in Willingness to Pay for Environmental Benefits"

(130/365) March 3, 2010: Who defines these terms?

Tomorrow, Thursday May 17, there will be a special seminar. Ricardo A. Daziano of Cornell University will present, "Accounting for Uncertainty in Willingness to Pay for Environmental Benefits."

Previous literature on the distribution of willingness to pay has focused on its heterogeneity distribution without addressing the interval estimation problem.  In this paper we derive and analyze Bayesian confidence sets for quantifying uncertainty in the determination of willingness to pay for carbon dioxide abatement. We use two empirical case studies: household decisions of energy-efficient heating versus insulation, and purchase decisions of ultra-low-emission vehicles. We first show that deriving credible sets using the posterior distribution of the willingness to pay is straightforward in the case of deterministic consumer heterogeneity. However, when using individual estimates, which is the case for the random parameters of the mixed logit model, it is complex to define the distribution of interest for the interval estimation problem. This latter problem is actually more involved than determining the moments of the heterogeneity distribution of the willingness to pay using frequentist econometrics. A solution that we propose is to derive and then summarize the distribution of the point estimates of the individual willingness to pay.

The seminar will be in 212 O'Brien Hall from 2-3 PM.

Syndicate content