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Emission optimised control and speed limit for isolated intersections

Blokpoel, Robbin and Hausberger, Stefan and Krajzewicz, Daniel (2017) Emission optimised control and speed limit for isolated intersections. IET Intelligent Transport Systems. Institution of Engineering and Technology (IET). doi: 10.1049/iet-its.2016.0027. ISSN 1751-956X.

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Official URL: http://digital-library.theiet.org/content/journals/10.1049/iet-its.2016.0027


Stopping and accelerating at traffic lights is one of the main contributing factors to vehicular emissions in urban environments. The work in this paper demonstrates a generic guideline for minimizing CO2 emissions at traffic lights. This was done using an adaptive control, which uses a cost function for optimization, rather than network-specific control parameters. A new version of the emission model PHEMlight was used, which added of a fuel cut-off mode during coasting and other improvements compared to the previous version. Using this model, it could be determined that the emission optimal ratio between delay time and stops for the cost function of an adaptive control should be 1:165 at 50km/h. When the speed limit increases the ratio also increases with 1:296 for 70km/h. However, it was also found that the optimal free flow travel speed was around 70km/h. Therefore with long distances between intersections and a low amount of average stops, the maximum speed should be higher than 50km/h for emission optimality. Application of the ratio for 50km/h to the adaptive control algorithm ImFlow resulted in a CO2 emission reduction of 6.3% compared to a vehicle actuated control.

Item URL in elib:https://elib.dlr.de/111368/
Document Type:Article
Title:Emission optimised control and speed limit for isolated intersections
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Krajzewicz, DanielUNSPECIFIEDhttps://orcid.org/0000-0003-1045-8800UNSPECIFIED
Date:28 February 2017
Journal or Publication Title:IET Intelligent Transport Systems
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Institution of Engineering and Technology (IET)
Series Name:IET Intelligent Transport Systems
Keywords:traffic lights, emissions, simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt II (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transport Research
Institute of Transportation Systems
Deposited By: Krajzewicz, Daniel
Deposited On:05 Apr 2017 09:00
Last Modified:07 Jul 2023 13:13

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