The loading gauge standard is defined by 3 key rules:
- Maximum locomotive / vehicle height: 10 bricks (from railhead to roof); pantographs may extend to ~12 bricks in height from railhead.
- Maximum locomotive / vehicle width: 8 studs (to include running rods, etc).
- Maximum overhang on curves: 4 studs
LNUR loading gauge in use
Implications for infrastructure and scenery building
We expect all mainline infrastructure such as station platforms, bridge supports, and tunnels used on LNUR displays to accommodate all vehicles on the lines to these standards.
- All platform and building edges are to be set a minimum of 1 stud back from the edge of the straight track itself (i.e., 2 studs away from the railhead on either side).
- Within tunnels and cuttings, ensure ~4 stud clearance overhang from the edge of the track (i.e., 5 stud clearance from the railhead itself on either side). This will ensure longer rolling stock and locomotives can clear this section.
Don’t worry – it can take some practice to get it right, and even long term members get this wrong occassionally – it’s just trial and error and a lot of patience!
This loading gauge standard is still in use on LNUR displays.
There are no current plans to rewrite or update this standard, though individual member layouts may still use their own loading gauges. This is primarily due to many of our members’ locomotives and rolling stock being constructed to accommodate this loading gauge.
- Darrington Railway – the main LNUR display (2019 – 2020)
- Ambridge & Paxley Railway – whilst this display doesn’t follow the LNUR track geometry standard the landscape is still built with standard clearances in mind.
- Felpersham LEGO Railway (now retired)