Development of Arrival Time Based Uniform Delay Models for Oversaturated Signalized Intersections
Kim, Sang-Ock
This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/83284
Description
Title
Development of Arrival Time Based Uniform Delay Models for Oversaturated Signalized Intersections
Author(s)
Kim, Sang-Ock
Issue Date
2005
Doctoral Committee Chair(s)
Benekohal, Rahim F.
Department of Study
Civil and Environmental Engineering
Discipline
Civil and Environmental Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Language
eng
Abstract
Comparisons of control delays show that HCM estimates were not significantly different from the simulated filed data generated by CORSIM for 12 scenarios out of 28 for zero initial queue conditions, and 14 scenarios out of 28 for nonzero initial queue conditions, however for the remaining scenarios they were significantly different. On the contrary, the control delays from the proposed delay models were not significantly different from simulated field data generated by CORSIM for 28 scenarios out of 28 for zero initial queue conditions, and 28 scenarios out of 28 for nonzero initial queue conditions. Statistical comparisons for Arrival Type 6 were not conducted since there might not be practical meaning for Arrival Type 6 in oversaturated traffic conditions. The results of sensitivity analysis for the proposed model to various green to cycle ratios showed that delay decreased as g/C ratio increased, as expected. Furthermore, the simulated data and the proposed models support that there are platoon impacts on delay in oversaturated conditions. The proposed models were used to develop a set of new progression adjustment factors (PF) for oversaturated conditions that can be used with the HCM delay model.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
