Distance between parallel tracks (N scale)

[Anonymous]

Is there a preferred distance between parallel tracks, such as on a double mainline or passing siding. How about on a curve?

[DSchmitt]

NTRAK uses 1-1/2" on both straights and curves. This scales out to 20' which is a little wide, but our curves are sharp compared to the prototype and our fingers are not to scale.

From Railway Track and Maintenance by E. E. Russell Tratman ( reprint of the 4th edition published in 1926 is available from the NMRA) : "Main Tracks are spaced usually 13' center to center; sometimes 13-1/2 or 14 ft." "The distance between the centers of main track and a parallel sidetrack, a pasing track, or a yard lead should not be less than 16 ft, ..... , or 13 ft on branch lines, .....but may be as much as 20 ft. ......" Some states have laws specifing spacing. "On curves, the spacing between centers of tracks must be increased to maintain the clearance between cars."

Modern practice is generally wider spacing than in 1926.

I think 1" (13-1/3 ft) looks nice.

[ckape]

NMRA standard S-8 gives whole sets of minimum track spacings for the different scales and types of equipment.

http://www.nmra.org/standards/s-8.html

[Anonymous]

Great stuff. Thanks for the info.