While the other pages on this site contain material that makes the claim that it has been properly researched in at least a rudimentary fashion, this page is an exception. It contains links to a miscellany of blog posts that give my thoughts and ideas on subjects and events that interest me in one way or other. They are in general very provisional and preliminary but may, to some extent, interest and perhaps enthuse readers.
The calculation of Covid-19 infection rates on GB trains. A post in which, using the work of Jimenez at Colorado, I present the results of some quantitative, if approximate, calculations of Covid-19 infection risk on trains in Britain. (June 16th 2021).
Covid-19 and train ventilation – a blog in which I look at the ventilation rate of window ventilated rather than air conditioned trains, and conclude that such trains when all windows are shut (ie in the winter) may well be the critical case for pathogen transmission (May 9th 2021)
A (half hearted) defence of Autonomous Vehicles and other transport innovations. My third provocative post of the week, where I argue that some of the much-derided recent transport innovations may actually be useful in some situations. (January 1st 2021)
The NIC report on “Rail needs assessment for the Midlands and the North” – common sense or betrayal? Another provocative post, in which I express support for the much derided National Infrastructure Commission report. ((December 31st 2020)
Engineers, roads and ethical standards. An intentionally provocative post in which I suggest an arguable case can be made that by designing and building environmentally and socially damaging road schemes, engineers could be in violation of their own ethical code of conduct. (December 30th 2020)
Some thoughts on ventilation and pathogen concentration build up. Some simple analysis of the build up of the concentration of pathogens in enclosed spaces (November 13th 2020)
Pollution, Covid and Trains. Some preliminary thoughts on the issues of air quality and pathogen removal from the passenger cabins of train. (November 11th 2020)
A brief look at the incidence of Covid-19 in UK universities. An attempt to look at the incidence of student Covid-19 infections in relation to Institution size, and national age group infection rates, using October 2020 data. Many dubious arm waving assumptions involved. (October 17th 2020)
Leisure travel by rail after the pandemic – some thoughts on how the GB rail network may structure itself after the current pandemic (October 1st 2020)
Journeys by rail and coach – a reflection on a recent long distance multi-modal journey and how it could have been improved. (September 28th 2020)