Overview

This tool provides a dynamic means to graphically review a corridor mesh and identify anomalies.

Finding the command

In the Civil Frontstage, open the left widget panel and select the Civil Design Validation and Analysis tab.

 

After selecting the Civil Validation and Analysis widget, click the drop-down menu to access the Corridor Analysis option.

 

Add New Corridor Analysis

Select the “Add new stopping sight distance” button from the palette.

 

Tool settings loads allowing definition for the upcoming analysis. These need to be defined before picking the alignment.

 

Tool options

• Lateral offset – allows offset adjustment from the reference geometry (negative implies left)
• Eye Height – default value  supplied for metric and imperial
• Target Height – default value supplied for metric and imperial
• Speed – default value is applied for metric and imperial
• Method – supported methods include AASHTO, Australian, French, Italian
• Start and End stations – accepts a typed value or graphical selection. (Reverse runs are achieved by selecting stationing in opposite direction)

When all options are appropriately defined, Run the analysis.

Analysis Results

The analysis results are displayed in a table and identify for the selected standards the distance achieved and status.

 

Selecting a entry in the table will highlight and zoom to the corresponding graphic in the 3D model.

Analysis Results Widget Options

Sight Lines – can be added to the display and are colour coded to status and deficiency. Sight lines can be highlighted from either the graphic or the table to highlight the corresponding entry in graphics or the table.

  

Sight Envelopes – provide the current analysis boundary limits for all sight lines to allow for additional checks to ROW, landscaping etc

  

Profile View – opens the sight line profile in a new view where additional measurements can be taken and the failure investigated.

View from eye to target – applies the sightline into the 3D view.

Saved Stopping Sight Analysis

Analysis runs are saved for recall and are grouped against the control Geometry for later recall from the table listing.

 

For each run the entered Analysis options are stored for review with a brief summary of failures. The full results a can accessed via ‘View Results’ which restores the table.