For traffic signal and accessories foundations, a minimum 3-foot depth is required. For traffic signal pole foundations, a minimum depth of 9 feet for all signal poles with 1 signal mast arm, and a depth of 12 feet for all signal poles ...
TRANSPORTATION RESEARCH BOARD EXECUTIVE COMMITTEE 1998 OFFICERS Chairwoman : Sharon D. Banks , General Manager ... Institute for Transportation Research and Education , North Carolina State University DELON HAMPTON , Chair and CEO ...
... Los Angeles Executive Director: Robert E. Skinner, Jr., Transportation Research Board MEMBERS WILLIAM D. ANKNER, ... Executive Director, Transportation District Commission of Hampton Roads, Hampton, VA MARTIN WACHS, Director, ...