NTSB Number: HAR-75/04 NTIS Number: PB-243597/ASSYNOPSIS
The National Transportation Safety Board
determines that the probable cause of this accident was the failure of
the driver of the car to control her automobile while attempting to avoid
unexpected slower moving vehicles ahead. Her failure resulted in an erratic
move to the left and into the path of the overtaking truck.
Contributing to the accident were unexpected congestion which required
a hazardous stop in the right lane, and land-use practices that permitted
the generation of traffic in excess of the safe and efficient operating
capacity of the roadway.
RECOMMENDATIONS
As a result of the investigation of this accident, the National Transportation Safety Board on August 15, 1974, submitted recommendations to the Federal Highway Administration (see Appendix A). The Safety Board further recommends that the Federal Highway Administration:
(1) Establish a research program to identify and analyze the cause and effect relationships among the factors of land-use planning and control, highway facility design, and traffic safety. Such research should be in consultation with the Environmental Protection Agency, the Department of Housing and Urban Development, and the several States. (Recommendation H-75-14) Priority Classification III - Long Term Followup
(2) If traffic safety is shown to be adversely
affected by current land-use practices, develop and promulgate guidelines
and standards for the comprehensive planning of highway transportation
facilities and the land uses that affect their safe operation. (Recommendation
H-75-15) Priority Classification III - Long Term Followup