TL Barrier Warrant Index Calculator

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Описание

This app is a digital version of the Roadside Barrier Index Nomograph from the BC Supplement to TAC, Page 610-3, April 2019 edition, BC Ministry of Transportation, Canada. It allows you to compute the barrier need index without leaving the Autodesk® AutoCAD®/Autodesk® Civil 3D® design environment.

Features:

Instant BWI computation
Automatic Friction computation from Ball Bank indicator reading or Curve Design Data
Automatic Effective Height of Fill Computation from input parameters (organized by type)
Value interpolation within the parameter min/max range (except for the Climatic Conditions parameter)
Parameter range checks and validation
Critical values computations for all input parameters (except Climate), if within the allowed range
Native AutoCAD Palette GUI interface

Interpolation is based on the n-degree polynomial best-fit approximation for all parameters except Fill Slope, which is interpolated linearly from the nearest discrete values

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