| Title | Safety evaluation of increasing retroreflectivity of STOP signs |
|---|---|
| Record ID | 31212 |
| Personal Name Creator |
Persaud, Bhagwant Naraine, 1947-; Lyon, Craig; Eccles, Kimberly; Lefler, Nancy; Amjadi, Roya |
| Source | vii, 33 p. : ill. |
| Corporate Creator | VHB/Vanasse Hangen Brustlin, Inc.; Persaud Lyon, Inc. |
| Corporate Contributor |
United States. Federal Highway Administration |
| Publisher | Turner-Fairbank Highway Research Center |
| Publication Date | 20080300 |
| Language | English |
| Abstract | The Federal Highway Administration (FHWA) organized a Pooled Fund Study of 26 States to evaluate low-cost safety strategies as part of its strategic highway safety effort. One of the strategies chosen to be evaluated for this study was STOP signs with increased retroreflectivity. This strategy is intended to reduce the frequency of crashes related to driver unawareness of stop control at unsignalized intersections. Geometric, traffic, and crash data were obtained at unsignalized intersections for 231 sites in Connecticut and 108 sites in South Carolina. In each case, the strategy was implemented as a blanket application of STOP signs with increased retroreflectivity. Empirical Bayes (EB) methods were incorporated in a before-after analysis to determine the safety effectiveness of increasing the sign retroreflectivity. There was a statistically significant reduction in rear-end crashes in South Carolina. Based on the results of the disaggregate analysis, reductions in crashes were found at three-legged intersections and at intersections with low approach volumes. |
| Rosap ID | dot:822 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/822 |
| TRT Terms | Stop signs; Retroreflectivity; Unsignalized intersections; Traffic safety; Highway planning |
| Classification | NTL - OPERATIONS AND TRAFFIC CONTROLS - Traffic Control Devices; NTL - OPERATIONS AND TRAFFIC CONTROLS - OPERATIONS AND TRAFFIC CONTROLS; NTL - SAFETY AND SECURITY - Highway Safety |
| Geographical Coverage |
United States |
| OCLC | 318643651 |
| TRIS Online Accession No |
1104041 |
| Contract Number | DTFH61-05-D-00024 |
| Report Number | FHWA-HRT-08-041 |
| Availability | Federal Highway Administration |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/31000/31200/31212/FHWA-HRT-08-041.pdf |
| Alternative URL | http://www.tfhrc.gov/safety/pubs/08041/08041.pdf; https://ntlrepository.blob.core.windows.net/lib/30000/30400/30419/08041.pdf; http://www.fhwa.dot.gov/publications/research/safety/08041/index.cfm |
| Format | |
| Database | NTL Digital Repository |