Modular Standards

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MILS: Modular Integrated Landscaping System. This standard has been developed by members of the HispaLUG/HispaBrick community for collaborative diorama displays. Among its key features is that it is simple and flexible and can be used with many different LEGO® themes besides trains.

MILS Structure


The MILS standard is primarily based on 32x32 baseplates; however, intermediate sizes of 16x32 can be used as long as its terrain features share a common profile with adjacent modules. Ground level is 1 brick (3 plates) above the baseplate reference level. Modules interconnect with Technic pins into 1x4 Technic bricks located at module corners. Typically the 2x2 corner space is used as an identification feature. This identification can be used by a builder to show ownership or it can be used as guide for orientation between adjacent modules.

MILS Basic Terrain Modules (BTM)


MILS BTM modules have so-called "null" profile, i.e. no contours at the edges.

MILS BTM with Roads


MILS BTM with Water Features


Water features are rendered at 2 plates above the baseplate. The bottom layer is typically blue or green colour plates with a top layer of transparent tiles, often using dark transparent blue.

MILS Contour Terrain Modules (CTM)


MILS contours are specified as either a "Short Profile" or "Long Profile". Short Profile contours are nominally 1 plate per stud gradient whereas Long Profile contours are 1 plate per 2 stud gradient. So-called "null" profiles are at ground level whereas "Full Profiles" are 5 bricks (15 plates) above ground level.

MILS Links

For additional information on MILS, please refer to these links:

MultiRoad: Road System for MILS

The MILS standard describes terrain and landforms very well and shows many inspiring examples of landscape modules. One area of the standard which I felt needed more detail and greater scope was roads.

Many layouts will require some form of roadway. This also includes airport runways/taxiways--an area often forgotten. Furthermore, the roadways must seamlessly integrate with adjacent landforms, include infrastructure such as sidewalks for areas next to buildings and lastly integration with railway modules.

I have designed a system which I have called "MultiRoad". It is a system of modular components specifically designed for making MILS compatible roadways. It has three main components:

1) MILS compliant base modules of 32x32 studs 2) Generic roadway sections representing "left" and "right" lanes. 3) Interchangeable 5-plate strips mounted to the left, centre and right sections of the roadway. These strips allow for the customization of the roadway appearance to represent almost any region-specific roadway markings.

The roadway surface is a nominal 6 plates above baseplate height. This allows for a gentle drainage slope away from the road and more importantly, allows roadway markings and features to be rendered SNOT wise within a 2 stud space resting on tiles. Also, this height blends nicely to self contained railway level crossings requiring only a 3 plate incline to rail height.