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Does context matter? A comparative study modelling autonomous vehicle impact on travel behaviour for Germany and the USA

Kröger, Lars and Kuhnimhof, Tobias and Trommer, Stefan (2018) Does context matter? A comparative study modelling autonomous vehicle impact on travel behaviour for Germany and the USA. Transportation Research Part A: Policy and Practice, pp. 1-16. Elsevier. doi: 10.1016/j.tra.2018.03.033. ISSN 0965-8564.

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Official URL: https://www.sciencedirect.com/science/article/pii/S0965856417301180


This paper, for the first time, presents comparable projections of travel behaviour impacts of the introduction of autonomous vehicles (AVs) into the private car fleet for two countries, namely the USA and Germany. The focus is on fully autonomous vehicles (AVs) which allow drivers to engage in other activities enroute. Two 2035 scenarios - a trend scenario and an extreme scenario - are presented for both study countries. For these projections, we combine a vehicle technology diffusion model and an aspatial travel demand model. Factors that influence AV impact in the behavioural model are mainly new automobile user groups, e.g. travellers with mobility impairments, and altered generalized costs of travel, e.g. due to a lower value of travel time savings for car travel. The results indicate that AV penetrations rates might be higher in Germany (10% or 38% respectively) than in the USA (8% or 29% respectively) due to a higher share of luxury cars and quicker fleet turnover. On the contrary, the increase of vehicle mileage induced by AVs is not higher in Germany (+2.4% or +8.6% respectively) than in the USA (+3.4% or +8.6% respectively). This is mainly due to the lack of mode alternatives and lower fuel costs resulting in a higher share of travel times among the total generalized costs of travel in the USA. These results clearly indicate that context factors shaped by national policy will influence AV adoption and impact on travel demand changes. Based on these results the paper draws policy recommendations which will help to harness the advantages of AVs while avoiding their negative consequences.

Item URL in elib:https://elib.dlr.de/121837/
Document Type:Article
Title:Does context matter? A comparative study modelling autonomous vehicle impact on travel behaviour for Germany and the USA
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kröger, LarsUNSPECIFIEDhttps://orcid.org/0000-0003-1807-924XUNSPECIFIED
Journal or Publication Title:Transportation Research Part A: Policy and Practice
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-16
Keywords:Vehicle Automation Autonomous vehicles Diffusion rates of autonomous vehicles Market Penetration Fleet Evolution Modelling travel demand Impact on travel demand
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 - Zukunftsbilder eines automatisierten integrierten Verkehrssystems (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transport Research
Institute of Transport Research > Passenger Transport
Deposited By: Kröger, Lars
Deposited On:10 Jan 2019 10:23
Last Modified:08 Nov 2023 14:46

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