Data Structure

The road design data is accessed on a design by design basis. Each design comprises all the data necessary for the road (i.e. intersection points, alignment, typical cross sections and road cross sections, as well as design parameters, such as grade limits and batter slopes). The data are stored in different Vulcan layers, but the Iroad module accesses them in an organised fashion.

For example, if you are working on a design named 'RAMP34', then if you select that design, all the data for that design are loaded, each into its correct view; the alignment and sections appear in plan, the long section and super elevation appear in section and all the design parameters are recovered.

The design is accessed by an eight (8) character design name. Vulcan adds a one character file extension to the design name to form the layer names.

Below is an example of a list of all the layers of a loaded design named RAMP34.*. The list includes the layer names and descriptions, as well as the window into which the layer is loaded.

RAMP34.A : Alignment for design RAMP34 >> PRIMARY RAMP34.D : Road X Sections for design RAMP34 >> PRIMARY RAMP34.H : Horizontal IP for design RAMP34 >> PRIMARY RAMP34.L : Long section for design RAMP34 >> LONG_SECT RAMP34.N : Joining road lines for design RAMP34 >> PRIMARY RAMP34.P : Joining NS lines for design RAMP34 >> PRIMARY RAMP34.R : Road Section for design RAMP34 >> ROAD_SECT RAMP34.S : Superelevation for design RAMP34 >> LONG_SECT RAMP34.T : Topo X sections for design RAMP34 >> PRIMARY RAMP34.V : Vertical IP for design RAMP34 >> LONG_SECT RAMP34.C : Conditional cross section for RAMP34 >> ROAD_SECT RAMP34.M : Mass haul diagram for design RAMP34 >> LONG_SECT

An example of the layers, labelled with their names, is shown in Diagrams 1a - 1c. Each layer has its own line type and colour associated with it.

1a - Layers in Plan View (PRIMARY Window)

1b - Layers in Section View (ROAD_SECT Window)

1c - Layers in Long Section View (LONG_SECT Window)

Data Structure

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