Structures Design

2001 AASHTO Standard Sign Specifications Notice

Cantilever Sign Program v5.1 and Span Sign Program v5.1 use AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals - 2nd Ed. 1994.


Using input wind speeds of 93/110/127mph with the 1994 AASHTO Std Sign Spec produces similar results as using wind speeds of 110/130/150mph with the 2001 Std Sign Spec.