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Webster’s Delay Formula – revisited

Wagner, Peter and Gartner, Nathan and Oertel, Robert and Lu, Ting (2014) Webster’s Delay Formula – revisited. Transportation Research Board, Washington, DC, USA.

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Abstract

The equations developed byWebster in his famous 1958 report[10] are still the basis of traffic signal planning today. They are being used in handbooks like the HCM and similar instruments world-wide. However, the handbook approach typically works with approximations to the original equations which have stood the test of time, but may nevertheless not be the best to be done today. This work analyzes Webster’s approach and advocates a more modern use of it which utilizes the tremendous advances in computer hardware and software. This is being done by comparing approximations to exact solutions, and by a comparison between various models and Webster’s equations itself. It is shown that there can be significant differences in the calculation of optimal cycle times and consequent delay times.

Item URL in elib:https://elib.dlr.de/88211/
Document Type:Conference or Workshop Item (Poster)
Title:Webster’s Delay Formula – revisited
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wagner, PeterDLRUNSPECIFIED
Gartner, NathanDepartment of Civil and Environmental Engineering, University of Massachusetts, Lowell, MA 01854, USAUNSPECIFIED
Oertel, RobertDLRUNSPECIFIED
Lu, TingDLRUNSPECIFIED
Date:13 January 2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Traffic signal control, Webster's formula
Event Title:Transportation Research Board
Event Location:Washington, DC, USA
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Projekt Verkehrs- und Mobilitätsmanagement (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems > Traffic Management
Deposited By: Wagner, Dr. Peter
Deposited On:17 Feb 2014 14:52
Last Modified:31 Jul 2019 19:45

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