ACCIDENT EXPERIENCE WITH IMPACT ATTENUATION DEVICES

THIS REPORT PRESENTS A SUMMARY AND ANALYSIS OF THE FIELD ACCIDENT DATA OF THE IMPACT ATTENUATORS APPROVED BY INSTRUCTIONAL MEMORANDUM 40-1-71 AND AS REPORTED BY THE STATES UNDER THE NATIONAL EXPERIMENTAL AND EVALUATION PROGRAM PROJECT NO. NEEP-4, "IMPACT ATTENUATOR DEVICES", ADMINISTERED BY THE OFFICE OF HIGHWAY OPERATIONS, FEDERAL HIGHWAY ADMINISTRATION.