... road is less that 36" radius and, even with moving Ks, it would be difficult to build and potentially very unreliable. I would be tempted to straighten it out. Certainly, build that first and make sure it works before you build anything else (speaking from my past (bad) experience)- picture below! Good Luck! Howard Attachment: attach_1096_1527_Crianlarich_HB_2 .box 264 posted: 5 Jun 2011 09:24 from: JFS JFS wrote: (speaking from my past (bad) experience)- picture below! 1129_050419_400000000.jpg Every thing on this layout worked fine EXCEPT the three way in the far distance and the double slip- now I am always wary of such things! Best wishes, Howard posted: 5 Jun 2011 10:03 from: wcampbell23 Hi Neil Did Crianlarich really have a double slip at the junction? All the photos and drawings I recall show a scissors crossing type arrangement. There is a good signalling diagram here: http://www.signalbox.org/diagrams.php?id=154 Also an aerial photograph of the current layout ( ...