Hi I want to know if any body here, has worked in Top-Down Embbeded Rail system. Becaus e I want any manual or expirence with Turnouts instalation, to control the location and instalation as the projetc. My difficulty is that I dont have the control points of the Turnout, in the JIG system of CDM ( http://cdm.eu/data_sheets/CDM-QTrack-JIG.pdf)
Any body can show me a book or manual with a explanation of the tolerances and implantations methods in a Embbeded Rail system like europen Light Rail Transit. the gauge in here is internation 1.435m.
Thanks
The details you need will have to come from the manufacturer. Even if the turnouts are nominally of a standard size actual dimensions can vary significantly between suppliers and rail companies, so dimensions quoted in text books or manuals may not match those being supplied to your site. i.e a standard B7 turnout may well vary in lead length by up to 0.5 metres depending upon supplier, even if the switches are nominally the same. I'm assuming that the main line is straight and the curve is only on the diverging line. If both lines are curved then it's a bit more complicated, but the lead of a curved turnout is, for practical purposes, the same as a straight turnout using the same switch and crossing.
The dimensions you need are "toe of switch" to "fine point" and the crossing angle. The fine point is not the same as the crossing nose (it is the theoretical point where the running edges of the point and splice rails would intersect if they came to a feather-edge). Note that crossing angles are normally given as 1 in X, measured down the centreline of the V, but some suppliers will measure the angle at right angles to the point rail, which gives a slightly different divergence angle.
The designer should have provided a full coordinate listing for the turnouts and their geometry.