... the road bridge. The ANDR operated the E-W double track from Penrhos junction to the footbridge and it is almost level. The RR operated a parallel double track that becomes a single line. This line is on a falling gradient of about 1:80 from the viaduct becoming 1:40 further west. The Barry operated the other two lines from the junction with the Rhymney and the line over the viaduct. The viaduct line falls at about 1:80 to meet the exit from the exchange sidings. Attachment: attach_370_598_Penrhos2.jpg 637 posted: 27 Oct 2008 00:56 from: Richard Spratt The scale is P4 and the minimum radius is 36", although some templates still say 1000mm. The intention is that on the scenic side there is no track closer than 12" to the baseboard edge. I have let this slip slightly in the odd place. Space is limited to 12' x 26' as this is the size of the garage. I have compressed lengths as necessary except between the road bridge and viaduct as I feel this ...