| Title | Safety Evaluation of Flashing Yellow Arrows at Signalized Intersections [techbrief] |
|---|---|
| Record ID | 74884 |
| Personal Name Creator |
Srinivasan, Raghavan; Lan, Bo; Carter, Daniel; Smith, Sarah; Signor, Kari |
| Personal Name Contributor |
Amjadi, Roya |
| Corporate Creator | United States. Federal Highway Administration. Office of Safety Research and Development |
| Corporate Contributor |
VHB/Vanasse Hangen Brustlin, Inc. |
| Publisher | United States. Federal Highway Administration. Office of Safety Research and Development |
| Publication Date | 20200601 |
| Language | English |
| Abstract | This study investigated the safety effectiveness of the flashing yellow arrow (FYA) treatment at signalized intersections. One objective of this strategy was to reduce the frequency of left-turn (LT) crashes, especially those that involve a collision between left turns and vehicles traveling straight through from the opposite direction (also called leftturn opposite through (LTOT) crashes). Many studies have explored the safety effectiveness of FYAs. However, most of them only used data from one State, and the studies that used data from multiple States had limited samples of intersections. It is clear that an evaluation with a large sample of sites from multiple States would provide useful information to practitioners on the effectiveness of this treatment under different circumstances. |
| Rosap ID | dot:49718 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/49718 |
| TRT Terms | Signalized intersections; Traffic safety; Flashing traffic signals; Left turn phase |
| General Subjects | Flashing yellow arrow; Phasing; Low-cost safety improvements; Safety evaluations; Empirical Bayesian; Left turn; Left-turn opposite direction; Crash modification factor; Crash modification function; Intersection |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1744476 |
| Contract Number | DTFH61-13-D-00001 |
| Report Number | FHWA-HRT-19-035 |
| Resource type | Brief |
| URL | https://ntlrepository.blob.core.windows.net/lib/74000/74800/74884/FHWA-HRT-19-035.pdf |
| Format | |
| Database | NTL Digital Repository |