R 20-1994
Standard Recommended Practice for Procedures for Measuring Highway Noise

Standard No.

R 20-1994

Release Date

1994

Published By

AASHTO - American Association of State Highway and Transportation Officials

Status

Be replaced 1999-09

Replace By

R 20-1999

Latest

R 20-1999

R 20-1994 history

• 1999 R 20-1999 Standard Recommended Practice for Procedures for Measuring Highway Noise (Nineteenth Edition; Revised Per Interim Specifications - Specifications - 1999)
• 1994 R 20-1994 Standard Recommended Practice for Procedures for Measuring Highway Noise