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Who gets the key first? Car allocation in activity-based modelling

Beige, Sigrun and Heinrichs, Matthias and Krajzewicz, Daniel and Cyganski, Rita (2017) Who gets the key first? Car allocation in activity-based modelling. International Journal of Urban Sciences, pp. 1-15. Taylor & Francis. doi: 10.1080/12265934.2017.1351389. ISSN 1226-5934.

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Official URL: http://www.tandfonline.com/doi/full/10.1080/12265934.2017.1351389


Decisions concerning household car ownership and the corresponding usage by the household members have significant implications on vehicle usage, fuel consumption and vehicle emissions. In this context, long-term and short-term choices which are strongly interrelated with one another play an important role. The long-term aspects involve the number of vehicles and their different types owned by a household as well as the assignment of a main driver, acting as the primary user, to each vehicle. The short-term dimension is represented by the vehicle allocation within a household at a daily level. In order to better understand the vehicle allocation process in the household context, the paper at hand investigates the importance of the short-term and long-term aspects in this process and explores several approaches to model them. For this purpose, four different methods for car allocation within a household, which strongly differ in their complexity, are implemented into a microscopic agent-based travel demand model and subsequently evaluated. The respective approaches are the following: (1) random car allocation, (2) car allocation by age, (3) car allocation by main driver assignment, and (4) car allocation by household optimization. Given a population of a bigger region that is described by a set of attributes, these various models determine which person of a household uses one of the available cars within the household for his/her daily trips. The simulations show that all four implementations of car allocation result in good representations (with deviations of less than 10\%) of observed travel behaviour, their results being closer to each other than initially expected. Model (4), which optimizes car allocation for the entire household, shows the best results when compared to real-world data, while model (3) allows for the adaptation of changes in car ownership and/or socio-demographic and socio-economic attributes of the population.

Item URL in elib:https://elib.dlr.de/113299/
Document Type:Article
Title:Who gets the key first? Car allocation in activity-based modelling
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Heinrichs, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0002-0175-2787UNSPECIFIED
Krajzewicz, DanielUNSPECIFIEDhttps://orcid.org/0000-0003-1045-8800UNSPECIFIED
Cyganski, RitaUNSPECIFIEDhttps://orcid.org/0000-0002-5744-1427UNSPECIFIED
Date:17 July 2017
Journal or Publication Title:International Journal of Urban Sciences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-15
Publisher:Taylor & Francis
Keywords:car ownership; microscopic demand modelling;
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 > Mobility and Urban Development
Deposited By: Cyganski, Dr. Rita
Deposited On:26 Jul 2017 15:09
Last Modified:21 Nov 2023 10:24

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