Report of the Directors

Mode of access: Internet.

Aged embankment imaging and assessment using surface waves

Rapid, non-intrusive surface wave surveys provide depth profiles from which ground models can be generated for use in earthwork condition assessment. Stiffness throughout earthworks controls the behaviour under static and dynamic loads, and characterising heterogeneity is of interest in relation to the stability of engineered backfill and life-cycle deterioration in aged utility and transportation infrastructure. Continuous surface wave methods were used to identify interfaces between fine- and coarse-grained fill in an end-tipped embankment along the Great Central Railway in Nottinghamshire, UK. Multichannel analysis of surface wave (MASW) methods were used to characterise subsurface voiding in a canal embankment along the Knottingley and Goole canal near Eggborough, Yorkshire. MASW methods are currently being used to study extreme weather impacts on the stability of a highplasticity clay embankment along the Gloucestershire–Warwickshire railway near Laverton. Optimal results were obtained using equipment capable of generating and detecting over wide frequency ranges.

A pictorial and descriptive guide to London and the British empire exhibition, 1925; with two large section plans of central London; map of London and twelve miles round; railway and motor bus maps; main roads out of London; Hyde park and Kensington gardens, and twenty other maps and plans. Over one hundred illustrations.

Mode of access: Internet.

Clipping of notices from the Woodstock and Lake Erie Railway and Harbour Company and the Buffalo, Brantford and Goderich Railway

Clipping of notices from the Woodstock and Lake Erie Railway and Harbour Company and the Buffalo, Brantford and Goderich Railway, 1853.

Golden-winged Warbler habitat model validation for northern Wisconsin and central Minnesota

Between 1966 and 2003, the Golden-winged Warbler (Vermivora chrysoptera) experienced declines of 3.4% per year in large parts of the breeding range and has been identified by Partners in Flight as one of 28 land birds requiring expedient action to prevent its continued decline. It is currently being considered for listing under the Endangered Species Act. A major step in advancing our understanding of the status and habitat preferences of Golden-winged Warbler populations in the Upper Midwest was initiated by the publication of new predictive spatially explicit Golden-winged Warbler habitat models for the northern Midwest. Here, I use original data on observed Golden-winged Warbler abundances in Wisconsin and Minnesota to compare two population models: the hierarchical spatial count (HSC) model with the Habitat Suitability Index (HSI) model. I assessed how well the field data compared to the model predictions and found that within Wisconsin, the HSC model performed slightly better than the HSI model whereas both models performed relatively equally in Minnesota. For the HSC model, I found a 10% error of commission in Wisconsin and a 24.2% error of commission for Minnesota. Similarly, the HSI model has a 23% error of commission in Minnesota; in Wisconsin due to limited areas where the HSI model predicted absences, there was incomplete data and I was unable to determine the error of commission for the HSI model. These are sites where the model predicted presences and the Golden-winged Warbler did not occur. To compare predicted abundance from the two models, a 3x3 contingency table was used. I found that when overlapped, the models do not complement one another in identifying Golden-winged Warbler presences. To calculate discrepancy between the models, the error of commission shows that the HSI model has only a 6.8% chance of correctly classifying absences in the HSC model. The HSC model has only 3.3% chance of correctly classifying absences in the HSI model. These findings highlight the importance of grasses for nesting, shrubs used for cover and foraging, and trees for song perches and foraging as key habitat characteristics for breeding territory occupancy by singing males.

Sistema supervisor central de eventos en entorno ferroviario

En el campo del ferrocarril es necesaria tecnología avanzada que ayude en la seguridad de los trenes y de los pasajeros, en caso de viajes comerciales. Para ello en los pasos a nivel es necesario tener mecanismos que detallen cualquier incidencia, o cualquier anomalía respecto a las vías, bajadas de vayas, etc. Aquí toma vida esta aplicación llamada SCSE (Sistema Supervisor Central de Eventos en Entorno Ferroviario), que ofrece una cantidad importante de información. Esta aplicación recoge en el momento toda la información de los distintos pasos a nivel; y nos dice dónde está fallando el paso, si hay un error en la subida/bajada de vayas, si el semáforo no ha cambiado de color a tiempo... y lo hace visual en la pantalla. Con esta aplicación se pretende ofrecer una mayor eficacia en seguridad, una mayor rapidez en reparación de incidencias y una organización dentro de la empresa para poder ver sobre que se está trabajando.---ABSTRACT---In the field of rail technology is needed to assist in the safety of trains and passengers in case of commercial travel. To do this on level crossings is necessary to have mechanisms that detail any incident or any matter relating to rails etc. Here comes alive this application called SCSE (Central Events Supervisor System Environment Railway), which provides a significant amount of information. This application collects in the moment all the information of the different level crossings; and it tells us where it is failing level crossing, if there is an error in the up / down, if the light has not changed color in time ... and makes visual on the screen. With this application is intended to provide more effective security, a faster repair incidents and organization inside the company to see on which they are working.

Report to the President by the Emergency Board appointed June 15, 1950, pursuant to section 10 of the Railway Labor Act, to investigate an unadjusted dispute between the Boston & Albany Railroad Company and certain of its employees represented by the Brotherhood of Railroad Trainmen. NMB Case No. A-3392. Boston, Mass., July 6, 1950. No. 86.

Mode of access: Internet.

Report to the President by the Emergency Board appointed February 4, 1950, by Executive order 10105, pursuant to Section 10 of the Railway Labor Act, as amended : to investigate and report in respect to a dispute between the Denver & Rio Grande Western Railroad Company, a carrier, and certain of its employees represented by the Brotherhood of Railroad Trainmen (NMB case A-3065), Denver, Colorado, February 28, 1950.

Signed: Robert G. Simmons, chairman, Robert O. Boyd, member, Harold R. Korey, member.

Report to the President by the Emergency Board appointed September 15, 1949, by Executive order 10078, pursuant to Section 10 of the Railway Labor Act, as amended : to investigate an unadjusted dispute between the Monongahela Connecting Railroad Company and certain of its employees represented by the Brotherhood of Railroad Trainmen, a labor organization (N.M.B. no. A-3220), Pittsburgh, Pa., October 7, 1949.

Signed: Harry H. Schwartz, chairman, Francis J. Robertson, member, Andrew Jackson, member.

In the arbitration proceedings between the employes of Indianapolis traction and terminal company by and through their committee and Indianapolis traction and terminal company before the Public service commission of Indiana, acting as a voluntary board of arbitration ...

Argument of W.H. Latta, counsel for the respondent, testimony, etc.

Report to the President by the Emergency Board appointed April 10, 1948 pursuant to Section 10 of the Railway Labor Act, as amended : to investigate unadjusted disputes between the Pennsylvania Railroad Company and certain of its employees represented by the Brotherhood of Locomotive Firemen and Enginemen, Philadelphia, Pa. and New York, N.Y. June 9, 1948 (N.M.B. case A 2791).

"Respectively submitted. Andrew Jackson, Chairman, James H. Wolfe, Member, E. Wight Bakke, Member"--Page [ii].

Report to the President by the Emergency Board created July 27, 1946 pursuant to section 10 of the Railway labor act to investigate an unadjusted dispute between the Pullman Company and certain of its employees represented by the Order of Railway conductors. Chicago, Illinois, August 23, 1946. No. 40.

Mode of access: Internet.

Report to the President by the Emergency Board appointed May 12, 1949 by Executive order 10056 pursuant to Section 10 of the Railway Labor Act, as amended : to investigate a dispute between the Union Railroad Company (Pittsburgh) and certain of its employees represented by the Brotherhood of Railroad Trainmen : (NMB case A-3083) : Pittsburgh, Pennsylvania, July 29, 1949.

Signed: Andrew Jackson, chairman, Leif Erickson, member, Elmer T. Bell, member.

Report to the President by the Emergency Board created September 23, 1946, pursuant to section 10 of the Railway labor act to investigate the dispute between the Utah Idaho Central Railroad Corporation and those of its employees represented by the International Association of Machinist. Ogden, Utah, October 11, 1946. No. 42.

Mode of access: Internet.