SimpleTunnel

The SimpleTunnel subassembly is for a simple tunnel, or box culvert. It uses the height, width, and material thickness that you input.

Attachment

The attachment point is the uppermost point on the links preceding the tunnel.

Input Parameters

Note: All dimensions are in meters or feet unless otherwise noted. All slopes are in run-over-rise form (for example, 4 : 1) unless indicated as a percent slope with a “%” sign.

Parameter	Description	Type	Default
Tunnel Material Width	Width of the walls, floor, and roof of the tunnel.	Numeric, positive	1 ft 0.3 m
Tunnel Outside Height	Height of the outside of the tunnel.	Numeric, positive	10 ft 3 m
Tunnel Outside Width	Width of the outside of the tunnel.	Numeric, positive	12 ft 3.5 m

Target Parameters

None.

Runtime Logical Assignments

None.

Output Parameters

None.

Behavior

The points, links, and shapes are created using the input parameters.

Layout Mode Operation

In layout mode the subassembly displays the links comprising the tunnel.

Point, Link, and Shape Codes

The following table lists the point, link, and shape codes for this subassembly that have codes assigned to them. Point, link, or shape codes for this subassembly that do not have codes assigned are not included in this table.

Point, Link, or Shape	Code	Description
P1	Top, TopInsideTunnel	Top Inside Tunnel
P2	Top, TopOutsideTunnel	Top Outside Tunnel
P3	Datum, BottomOutsideTunnel	Bottom Outside Tunnel
P4	Top, BottomInsideTunnel	Tunnel Inside Wall Bottom
P5	TunnelInsideWall_TopIn	Tunnel Inside Wall Top Inside
P6	TunnelInsideWall_TopOut	Tunnel Inside Wall Top Outside
P7	TunnelInsideWall_BottomIn	Tunnel Inside Wall Bottom Inside
P8	TunnelInsideWall_BottomOut	Tunnel Inside Wall Bottom Outside
L2 - L4	Datum
L5	TopInnerWall	Top Inner Wall
L6	InnerWallInside	Inner Wall Inside
L7	InnerWallOutside	Inner Wall Outside
L8	BottomInnerWall	Bottom Inner Wall
L9	AttachPoint	Attach Point
S1	MaterialRemoved	Material Removed
S2	TunnelMaterial	Tunnel Material

Coding Diagram