18th International IEEE Conference on Intelligent Transportation Systems (ITSC); September 15-18, 2015 Academic Article uri icon


  • This paper studies the frequencies of vehicle entrance times to non-urban intersections after the yellow onset. Data obtained from loop detectors connected to digital enforcement cameras during 2 years included nearly 5 million yellow and red entrances to 37 intersections. The frequencies of crossing times relative to yellow onset are explored. In a previous publication the authors showed that the analysis is valid as long as the frequencies of entrances at the beginning of the yellow phase (for example, during the first second) are constant, and therefore 8 intersections were excluded. For the remaining 29 intersections the authors examined the fit of both standard (exponential) logistic regression and four parameter logistic regression to describe the frequencies of entrance times after the yellow onset over time from yellow onset. The results show a clear advantage for the former. The …

publication date

  • January 1, 2015