| Title | Reweighting of the Primary Sampling Units in the National Automotive Sampling System |
|---|---|
| Record ID | 20993 |
| Personal Name Creator |
Bondy, N.; Rhea, B. |
| Source | Research note; 4p. in various pagings |
| Corporate Contributor |
United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publisher | United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publication Date | 19970900 |
| Language | English |
| Abstract | The original design of hte National Automotive Sampling System - formerly the National Accident Sampling System - called for 75 PSUs randomly selected from PSUs which were grouped into various strata across the U.S. The implementation of the PSU sample occurred gradually with the first ten implemented in 1979, the second ten in 1980, the next ten in 1981 and the final twenty in 1982/1983 (this last group was done in two phases). Due to budget constraints in 1984, the system was to remain at 50 PSUs. In 1986, an agency decision was made tto redesign the NASS into two different systems that would begin operations in January 1988. The NASS was split into teo systems to fulfill the needs of the users both in-house within NHTSA and outside. |
| Rosap ID | dot:5393 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/5393 |
| TRT Terms | Crash data; Crash analysis; Datasets; Statistics; Traffic crashes |
| General Subjects | Accident research; Automobiles; Motor vehicle accidents; Sampling; Statistical data; Tables(Data) |
| Classification | NTL - REFERENCES AND DIRECTORIES - Statistics; NTL - SAFETY AND SECURITY - Accidents; NTL - SAFETY AND SECURITY - Highway Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY |
| Geographical Coverage |
United States |
| OCLC | 243703442 |
| TRIS Online Accession No |
743272 |
| Report Number | HS-042 542 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/20000/20900/20993/PB98163686.pdf |
| Alternative URL | https://ntlrepository.blob.core.windows.net/lib/000/800/804/00325.pdf |
| Format | |
| Database | NTL Digital Repository |