The Hallade method, devised by Frenchman Emile Hallade, is a method used in track geometry for surveying, designing and setting out curves in railway...

operation carrying an accelerograph developed by Emile Hallade, the inventor of the Hallade method. The accelerograph could record horizontal and vertical...

measurements of the straightness of the rail tracks and it is the basis of the Hallade method for rail surveying. The term sagitta (often abbreviated sag) is used...

Mattson: works at Vaadin as a Vaadin expert and a project manager Xavier Hallade: technical marketing engineer at Intel Corporation, focus on wireless displays...