Coldgunner Posted September 26, 2012 Share Posted September 26, 2012 Does anyone ever implement a cant into their models? Looking at real track, its very common, yet I don't think I've seen it on a model yet. Link to post Share on other sites More sharing options...
RBE Posted September 26, 2012 Share Posted September 26, 2012 Check out Outon Road theres a nice cant on there! Pic from before the wires went up but the tractor is clearly leaning around the bend Cav Link to post Share on other sites More sharing options...
coachmann Posted September 26, 2012 Share Posted September 26, 2012 It is easy to implement at the track laying stage until one encounters points and crossovers. Link to post Share on other sites More sharing options...
Coldgunner Posted September 26, 2012 Author Share Posted September 26, 2012 That looks pretty good! Link to post Share on other sites More sharing options...
RMweb Gold Oldddudders Posted September 26, 2012 RMweb Gold Share Posted September 26, 2012 ISTR that there was a period when cant within the Civil Engineer's function of BR was not restricted to superelevation.... Link to post Share on other sites More sharing options...
RBE Posted September 26, 2012 Share Posted September 26, 2012 We will be putting superelevation on the new WCML Neale Bank layout as the whole thing is one big curve and would look a bit silly without. However there will be points and crossovers which will need thoroughly thinking through prior to track laying. Cav Link to post Share on other sites More sharing options...
10800 Posted September 26, 2012 Share Posted September 26, 2012 The DRAG test track has superelevation on the middle two of the four P4 tracks shown here, using a wedged shaped polystyrene type underlay made for the purpose by Tillig in this case. Link to post Share on other sites More sharing options...
RMweb Gold Donw Posted September 26, 2012 RMweb Gold Share Posted September 26, 2012 Remember that there needs to be a transistion from flat to canted - usually as part of the transistion curves. Don Link to post Share on other sites More sharing options...
Multiple identity account 2 Posted September 27, 2012 Share Posted September 27, 2012 How can you create superelevated track using standard Hornby or Peco track? Link to post Share on other sites More sharing options...
RMweb Gold Donw Posted September 27, 2012 RMweb Gold Share Posted September 27, 2012 How can you create superelevated track using standard Hornby or Peco track? Most track is flexible enough to twist so the issue is the base and fixing it down. On open frame boards where the track is supported on a narrow track base supported on riser you can adjust the risers to give the cant and then fix the trackbase and track down firmly. On flat baseboard where there is a track base packing under the outer edge of the trackbase will provide the cant. If the track is fixed direct to the base I would suggest a packing strip about 6mm wide under the outer edge of the track. and then let the ballast fill in the dip. The amount of cant is up to you. In our scales it is really only cosmetic. I would suggest a transistion of at least one bogie coach length from flat to full cant. Someone mentioned the difficulties of turnouts. I suggest if there are turnouts in the curves you ignore the cant and put speed restriction signs up. The effect of cant can best be appreciated on open curves of a reasonable radius where high speed running would be expected. Don Link to post Share on other sites More sharing options...
RBE Posted September 27, 2012 Share Posted September 27, 2012 Packing under the outer edge is exactly what I did. As for the new layout I cant avoid points on the cant and dont want speed restrictions as it is wcml high speed running. I will work around the issues. Cav Link to post Share on other sites More sharing options...
coachmann Posted September 27, 2012 Share Posted September 27, 2012 Where a crossover is positioned on a curve, I found it is easier to treat the two tracks as one with one large 'wedge'. Link to post Share on other sites More sharing options...
RMweb Premium Siberian Snooper Posted September 27, 2012 RMweb Premium Share Posted September 27, 2012 Hi On a modern image club layout many years ago the whole layout was a circle and all the scenic boards were canted (super elevated) the plain tracks were elevated individually whereas the turnout work was canted across the entire area, the outer tracks rising to meet the level of the turnout outer rails. If the turnout road is against the cant then a sever speed restriction needs to be applied to it. Cheers SS Link to post Share on other sites More sharing options...
Adrian Wintle Posted September 27, 2012 Share Posted September 27, 2012 Kato makes canted Unitrack curves for N-scale. http://www.katousa.com/N/Unitrack/concrete.html It is a fairly aggressive cant. Adrian Link to post Share on other sites More sharing options...
Multiple identity account 2 Posted September 27, 2012 Share Posted September 27, 2012 For constructing points on a cant, then I'd suggest making the outer curve even higher than the inner curve! That way there will be an easy transition or flow from the inner an outer track. I'll try and draw a picture to explain it easily! Link to post Share on other sites More sharing options...
Chris Turnbull Posted September 28, 2012 Share Posted September 28, 2012 Some 30 years ago the Ely MRC incorporated cant on one of its layouts. It looked really good but the problem we had was that the transition from cant to level was insufficient. Whilst most models ran without any problem there were difficulties with long wheelbase locomotives such as 9Fs and especially the rigid wheelbase motor driven tender. So, by all means have a go as it will look really good if done properly but make the transition as long as possible using transitioned curves between the canted circular curve and the level straight track. Experimentation is recommended. Chris Turnbull Link to post Share on other sites More sharing options...
Brassey Posted September 28, 2012 Share Posted September 28, 2012 What happens when the turnouts run into a yard which is level? Does the yard have to be lower than all the super elevated line? Link to post Share on other sites More sharing options...
coachmann Posted September 28, 2012 Share Posted September 28, 2012 What happens when the turnouts run into a yard which is level? Does the yard have to be lower than all the super elevated line? They often were anyway having been built and then hardly touched whereas mainlines were constantly being packed and often ended up on a higher plain than the yard. But as to your question, the best idea is to look at photos and see how the railways sorted such problems out. We often build our layouts on a flat board and so end up with flat track. This is far from the case on real railways hence the need for speed restrictions when negotiating certain formations. Something has to give. If the turnout to a siding is off the outside of a super elevated curve then the lead into the yard would be uphill then flatten out and then downhill into the yard proper. While mainlines take precedent for perfection, real track is suprisingly imperfect in places, especially in sidings and yards. To copy kinks at rail joints etc merely looks like bad modelling, but then if we also emulated the less than perfect metalwork on real locos and tenders, our models would looks awful. Link to post Share on other sites More sharing options...
Chris Turnbull Posted September 28, 2012 Share Posted September 28, 2012 We often build our layouts on a flat board and so end up with flat track. This is far from the case on real railways hence the need for speed restrictions when negotiating certain formations. Something has to give. An example being the 10mph restriction at Manningtree North Junction where the Harwich line diverged from the canted main line. Chris Turnbull Link to post Share on other sites More sharing options...
Brassey Posted September 28, 2012 Share Posted September 28, 2012 Thanks for the reply Coachman. I am planning to build a layout with the turnouts off the inside of the canted rail where the up and down lines enter the yard. It's hard to tell from photographs as the prototype has much larger radii than I have space for and there's no compromise on the length either so there's not much room for the transition. I guess I will have to work carefully to avoid a kink where the track levels out. I don't plan to use flat boards so at least I can plan to have all the lines at different levels. Link to post Share on other sites More sharing options...
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