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The current work aims at developing a linearized Euler equations solver in curvilinear coordinates to account for the effects of topography on sound propagation. In applications for transportation noise, the propagation environment as well as the description of acoustic sources is complex, and time-domain methods have proved their capability to deal with(More)
Very few studies were devoted to permanent effects of nocturnal railway noise on sleep and cardiovascular reactivity. We investigated the effects of nocturnal railway noise on sleep and cardiovascular response in young and middle-aged adults living for many years either near a railway track or in a quiet area. Forty subjects (50% males) divided into two age(More)
The detection of multicomponent signals for which the components are not equidetectable is precisely investigated as a function of the level difference ΔL(i∕j) between components. The detection thresholds are determined for a seven-tone complex signal with random starting phases masked by white noise. Level differences between the components are examined. A(More)
There are few information at French railway station. People have to take attention to the visual sign to get the information of train departure time, corridor number, change the train etc. However, some stations of SNCF, which is the national railway company, are very large and have many lines, for instance, TGV, domestic, international line, so that it(More)
Results from outdoor acoustic measurements performed in a railway site near Reims in France in May 2010 are compared to those obtained from a finite-difference time-domain solver of the linearized Euler equations. During the experiments, the ground profile and the different ground surface impedances were determined. Meteorological measurements were also(More)
This article introduces a new method for localizing high-speed moving sources with a microphone array followed by a chirplet transform. A well-adapted chirplet is constructed and the accuracy of the method is studied within a general case. Simulations and real data from the high-speed train (Train a Grande Vitesse), are compared with the current(More)
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