National Automotive Sampling System (NASS) Data Collection, Coding and Editing Manual: 1986 Continuous Sampling System, Version Number 9

摘要

In order to produce a national traffic crash data base for the evaluation of old and the development of new highway and vehicle safety standards and to identify highway safety needs, the National Automotive Sampling System (NASS) was created. The system consists of twenty-four teams of crash researchers situated throughout the country. The purpose of this manual is to provide a consistent, standardized set of instructions for sampling crashes and collecting, coding, and editing the data.