40d:Ramp

A ramp is a map feature that allows dwarves and caravans to move between levels. Unlike a stair ramps have no 'top', they only have a bottom. Ramps are the only way that wagons can move between levels in order to access your trade depot. A natural ramp is a slope.

Using ramps

The lower ramp is valid; the upper ramp is not

• The tile above a ramp must be open space for it to operate (it will appear on screen as a down triangle).
• The ramp must have at least one wall adjacent to it for it to operate.
• The tile above the wall must be non-solid e.g. a floor, stair, 2nd ramp, etc. (Not a wall, statue, floodgate, etc.).

A creature can then move from the square the ramp is on to the square above the wall.

In the picture, you can see the difference: because the upper ramp is adjacent on all sides to empty space, it cannot be used to reach the tile to the west

• Note: It can be used to reach the tiles to the northwest or northeast of the ramp (not shown in picture). Also, if the tile to the west had a natural rock wall on top of it, it can be mined from the ramp. ^{v0.28.181.40d}

In DF terms the picture to the left would appear as (viewing top to bottom moving from left to right):

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Construction and Materials

There are two ways for your dwarves to create ramps. The first is to carve them into the earth itself (see digging), using the ground below or walls of stone, dirt, etc.. The second is to build a ramp out of materials such as stone, wood or blocks or bars.

• Digging a ramp uses the material and colour of the designated tile.
• Constructing a ramp uses the colour of the material used.

Collapse

Be sure to avoid mining out all of the floor tiles surrounding a ramp or staircase above and below it. If you do this, not only will the structures themselves be useless, they'll collapse, both of which can leave your dwarves trapped.

Removing Natural Ramps or Slopes

Natural ramps can be mined out via the designation menu using the Remove Up Stairs/Ramps selection (d -> z, using the ingame interface). Like the selection says, only upwards ramps can be removed in such a manner. Selecting a downwards ramp in such a manner has no effect. Removing the upward ramp will automatically remove the downward ramp on the level above. The downward part of a ramp doesn't really exist, a creature standing on a ramp tile will be on the lower tile until they move out of the tile.

Removing Constructed Ramps

Constructed ramps can be removed like any other construction via the designation menu using the Remove Construction selection (d -> n, using the ingame interface). Constructed ramps will leave one stone of the sort the ramp was constructed from.

Ramps V.S. Stairways

Ramps have important limitations, but they also allow slightly faster movement than stairways. For example, if a dwarf wants to go down and to the north using a stairway, it will have to take two steps: one step down a stairway and one step to the north. Going to the same place using a ramp only requires 1 step. Thus ramps are good for underground entrances to your fortress, even if they aren't going to be used by wagons.

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