Highway sign support structures. Vol. 2 Wind loads on roadside signs. Final report of project HPR-2 (104), contract no. CPR -11- 3550. Highway sign support research. (area III: reduction of wind loads).

A new philosophy should be established for the design of roadside sign supports. The information contained in this volume can be used by technical committees and design engineers as a basis to raise design stresses and lower wind load frequency criteria.