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ERA Terrain Classification & Longitudinal Grade Analyzer

Upload survey/alignment data in Excel or CSV to calculate longitudinal grades and classify terrain (Flat 0-5%, Rolling 5-25%, Mountainous 25-50%, Escarpment >50%) per ERA Geometric Design Manual 2013.

Input Surveying & Alignment Data

Section Interval Step (m)

Filter Centerline (CL)

Option 1: Upload Excel (.xlsx) or CSV File

Click to select file or drag & drop (.csv, .xlsx)

OR OPTION 2: PASTE SURVEY TEXT

Station, Elevation & Description Data (CSV)

Awaiting Survey Data

Upload an Excel/CSV file or click "Calculate" to evaluate longitudinal terrain grades per ERA Geometric Manual 2013.