Estimation Of Greenshields Model Parameters Using Python
School Name
South Carolina Governor's School for Science and Mathematics
Grade Level
12th Grade
Presentation Topic
Engineering
Presentation Type
Mentored
Abstract
Greenshields model is a two-regime equation to describe the flow of traffic before and after the break point density (the point when cars are no longer able to move at the free flow speed). This research developed Python code to estimate the four parameters of the model (Vo, the minimum speed; Vi, the free flow speed; Kb, the break point density; and α, the shape term) to be used in computer simulations of traffic. The estimated values obtained were Vo = 59.76, Vi, = 3.000, Kb = 17.21, and α = 10.49, and they show similarity to the round data.
Recommended Citation
Golden, Aspen, "Estimation Of Greenshields Model Parameters Using Python" (2015). South Carolina Junior Academy of Science. 52.
https://scholarexchange.furman.edu/scjas/2015/all/52
Start Date
4-11-2015 11:00 AM
End Date
4-11-2015 11:15 AM
Estimation Of Greenshields Model Parameters Using Python
Greenshields model is a two-regime equation to describe the flow of traffic before and after the break point density (the point when cars are no longer able to move at the free flow speed). This research developed Python code to estimate the four parameters of the model (Vo, the minimum speed; Vi, the free flow speed; Kb, the break point density; and α, the shape term) to be used in computer simulations of traffic. The estimated values obtained were Vo = 59.76, Vi, = 3.000, Kb = 17.21, and α = 10.49, and they show similarity to the round data.
Mentor
Mentor: Nathan Huynh, Department of Civil and Environmental Engineering, University of South Carolina