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Liu, C., Wang, Q. & Susilo, Y. (2019). Assessing the impacts of collection-delivery points to individual's activity-travel patterns: A greener last mile alternative?. Transportation Research Part E: Logistics and Transportation Review, 121, 84-99
Open this publication in new window or tab >>Assessing the impacts of collection-delivery points to individual's activity-travel patterns: A greener last mile alternative?
2019 (English)In: Transportation Research Part E: Logistics and Transportation Review, ISSN 1366-5545, E-ISSN 1878-5794, Vol. 121, p. 84-99Article in journal (Refereed) Published
Abstract [en]

The transport impacts of collection-delivery points (CDPs), as an alternative to home delivery, are rarely studied. As e-shopping becomes increasingly popular, trips to collect deliveries at CDP, especially by car travel, may generate a considerable amount of external effects, such as emissions. Therefore, this paper analysed the "picking up/leaving goods" trips selected from the Swedish National Travel Survey and jointly modelled the individuals' mode choice and trip chaining decisions using a panel cross-nested logit model. The roles of trip chain characteristics, individual socio-demographics and land use characteristics on each trip chain and mode choice combination are investigated. The results indicate observed and unobserved heterogeneities of trip chaining and mode choice decisions among populations. Young adults living with partners/spouses, single adults with children and partnered adults with children have the preference of using cars in collection-delivery trips compared to other life-cycle groups. A sensitivity analysis is carried out to estimate the effect of distance to CDPs on vehicle kilometres travelled. The calibrated model is used to estimate the VICE of collection-delivery trips in the greater Stockholm area. The results indicate a 22.5% reduction of VKT from collection-delivery trips by relocating 5% CDPs from urban areas to suburban and rural areas.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD, 2019
Keywords
Collection-delivery trip, Panel cross nested logit model, Mode choice, Trip chaining
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-244561 (URN)10.1016/j.tre.2017.08.007 (DOI)000457948700006 ()2-s2.0-85028303763 (Scopus ID)
Funder
Integrated Transport Research Lab (ITRL)Swedish Transport Administration
Note

QC 20190312

Available from: 2019-03-12 Created: 2019-03-12 Last updated: 2019-06-26Bibliographically approved
Palmberg, R., Susilo, Y. & Gidofalvi, G. (2019). Developing and trialling an implicit interaction platform to monitor and aiding dementia travellers. In: : . Paper presented at Mobile Apps and Sensors in Surveys (MASS) Workshop, 4-5 March, Mannheim, Germany.
Open this publication in new window or tab >>Developing and trialling an implicit interaction platform to monitor and aiding dementia travellers
2019 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Age related cognitive diseases are becoming a growing problem in Sweden. With the fast ageing population and lowered mortality rate comes the spread of cognitive diseases related to dementia. In order to accommodate this growing target group in transport and the built environment, it is important to understand the mobility and travel behaviour of patients suffering from these diseases. One subset of this target group is travellers suffering from age induced illnesses related with dementia, which most often have fluctuating symptoms that are affecting the cognitive skills of the traveller. This makes it hard to use standardized forms and survey-based information that would require the traveller to actively respond retroactively, either in oral or written form, since the traveller might have forgotten or mixed up their past experiences, among other things, it becomes very hard to gain confidence in the results as it might be hard to tell in which condition the patient is during the collection.

We propose an automated collection of biometric data such as heart rate in combination with position. Since the validity of the information collected in this manner is directly related to the quality of the sensors used it means that the precision and accuracy of the results could be virtually endlessly improved by upgrading the hardware and optimizing the software. To take a first step towards a solution like this we have started developing a smart watch application which is utilizing PPG technology to collect heart rate and combine it with positions collected through GPS technology.

Early testing has shown the possibility to correlate the heart rate of a traveller to their specific location. The implications of this must be validated through data labelling as we wish to utilize machine learning algorithms to analyse the data collected.

Keywords
Ageing society, Built environment, Position data, Biometric data, Automated data collection, Implicit interaction
National Category
Human Computer Interaction Interaction Technologies Transport Systems and Logistics Social Sciences Interdisciplinary
Research subject
Transport Science; Transport Science
Identifiers
urn:nbn:se:kth:diva-254187 (URN)
Conference
Mobile Apps and Sensors in Surveys (MASS) Workshop, 4-5 March, Mannheim, Germany
Note

QC 20190823

Available from: 2019-06-21 Created: 2019-06-21 Last updated: 2019-08-23Bibliographically approved
Palmberg, R., Susilo, Y. & Gidofalvi, G. (2019). Uncovering Effects of Spatial and Transportation Elements on Travellers Using Biometric Data. In: Tuuli Toivonen, Karst Geurs, Elias Willberg (Ed.), TOWARDS HUMAN SCALE CITIES - OPEN AND HAPPY: . Paper presented at 15th biennial NECTAR conference University of Helsinki, Finland 5-7 June 2019. Helsinki: Department of Geosciences and Geography, University of Helsinki
Open this publication in new window or tab >>Uncovering Effects of Spatial and Transportation Elements on Travellers Using Biometric Data
2019 (English)In: TOWARDS HUMAN SCALE CITIES - OPEN AND HAPPY / [ed] Tuuli Toivonen, Karst Geurs, Elias Willberg, Helsinki: Department of Geosciences and Geography, University of Helsinki , 2019Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Travel surveys has been used for decades to observe the patterns, locations, and choices, which travellers chose and do during the given observed period. This information can be utilized as background for informed planning decisions. Despite the progress in the travel survey technologies, the applications mostly focus on more traditional travel parameters. With programmable smart watches now, we can also collect real time data that is not solely pertaining to position and travel mode choices, but also to users’ biometric data. Such an application would open another level of possibilities in dynamically integrating land use and transport planning with public health research.

Utilising a smart watch platform, we are aiming to develop a tool that will collect biometric data, in combination with spatial context, such as position, spatial features and objects in the built environment, and by utilizing machine learning algorithms, try to detect how travellers are affected by their choice of transport mode, the built environment in general as well as how the public transport is operated.

Early testing reveals the possibility to find correlations between heart rate and position, which in turn could reveal the effect of spatial and transportation elements on the traveller. By targeting widely available hardware, the scalability for this tool is virtually endless, making it possible to collect large amounts of data and utilizing machine learning algorithms to analyse it.

Place, publisher, year, edition, pages
Helsinki: Department of Geosciences and Geography, University of Helsinki, 2019
Keywords
Automated data collection, Biometric data, Built environment, Implicit interaction, Position data
National Category
Transport Systems and Logistics Interaction Technologies Social Sciences Interdisciplinary Human Computer Interaction
Research subject
Transport Science
Identifiers
urn:nbn:se:kth:diva-254183 (URN)978-951-51-4922-0 (ISBN)978-951-51-4921-3 (ISBN)
Conference
15th biennial NECTAR conference University of Helsinki, Finland 5-7 June 2019
Note

QC 20190823

Available from: 2019-06-21 Created: 2019-06-21 Last updated: 2019-08-23Bibliographically approved
Abenoza, R. F., Liu, C., Cats, O. & Susilo, Y. (2019). What is the role of weather, built-environment and accessibility geographical characteristics in influencing travelers’ experience?. Transportation Research Part A: Policy and Practice, 122, 34-50
Open this publication in new window or tab >>What is the role of weather, built-environment and accessibility geographical characteristics in influencing travelers’ experience?
2019 (English)In: Transportation Research Part A: Policy and Practice, ISSN 0965-8564, E-ISSN 1879-2375, Vol. 122, p. 34-50Article in journal (Refereed) Published
Abstract [en]

We examine the effect of weather, accessibility and built-environment characteristics on overall travel experience as well as the experience with the latest trips. These are factors that are often disregarded in the travel satisfaction literature even though they are believed to largely influence the first mile of the door-to-door trip. This study fills a research gap in investigating all these factors by using, amongst other, a relatively large travel satisfaction survey from years 2009 to 2015 and by focusing on urban and peri-urban geographical contexts, the city and county of Stockholm (Sweden), respectively. The ordered logit model results show that county dwellers living close to a metro station and in well linked-to-all areas report higher overall travel satisfaction evaluations. In addition, precipitation and ground covered with snow have a negative influence on travel satisfaction. Our findings indicate that built-environment characteristics exert a rather weak influence on the travel experience, especially in the peri-urban context. However, some aspects such as living in areas with medium densities, low income and with high safety perceptions around public transport stations are associated with higher satisfaction levels. In turn, areas with single land uses are found to have lower travel satisfactions. These results are important for public transport planners and designers in devising measures to prevent and mitigate the negative outcome of some weather conditions and to conceive better designed transit oriented developments.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Accessibility, Built-environment, Customer satisfaction, First and last-mile, Ordered logit models, Weather
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-246456 (URN)10.1016/j.tra.2019.01.026 (DOI)000465061400003 ()2-s2.0-85061906067 (Scopus ID)
Funder
Integrated Transport Research Lab (ITRL)
Note

QC 20190320

Available from: 2019-03-20 Created: 2019-03-20 Last updated: 2019-06-17Bibliographically approved
Langbroek, J. H., Franklin, J. P. & Susilo, Y. (2018). A stated adaptation instrument for studying travel patterns after electric vehicle adoption. Transportation Research Procedia, 32, 464-473
Open this publication in new window or tab >>A stated adaptation instrument for studying travel patterns after electric vehicle adoption
2018 (English)In: Transportation Research Procedia, ISSN 2324-9935, E-ISSN 2352-1465, Vol. 32, p. 464-473Article in journal (Refereed) Published
Abstract [en]

This paper describes and evaluates a stated adaptation instrument to investigate the effects of a transition towards electric vehicles on travel behaviour. The respondents were equipped with an “imaginary” electric vehicle with a specific range and were asked whether they wanted to make changes in an activity-travel schedule they had previously registered. It has been found that electric vehicle use may increase car use, and that activities are likely to be cancelled in case of problems with range limitations. In this paper, the validity, reliability and practical implementation of this stated adaptation experiment are discussed.

Keywords
stated adaptation; electric vehicles; travel behaviour; survey instrument
National Category
Transport Systems and Logistics
Research subject
Transport Science
Identifiers
urn:nbn:se:kth:diva-238438 (URN)10.1016/j.trpro.2018.10.045 (DOI)000471307900048 ()2-s2.0-85058864598 (Scopus ID)
Funder
Swedish Energy Agency, 37054-1
Note

QC 20181101

Available from: 2018-10-31 Created: 2018-10-31 Last updated: 2019-07-24Bibliographically approved
Prelipcean, A. C., Susilo, Y. & Gidofalvi, G. (2018). Collecting travel diaries: Current state of the art, best practices, and future research directions. In: Transport Survey Methods in the era of big data: facing the challenges. Paper presented at 2017 ISCTC 11th International Conference on Transport Survey Methods, L'Esterel Resort39 Chemin Fridolin-SimardEsterel, Canada, 24 September 2017 through 29 September 2017 (pp. 155-166). Elsevier, 32
Open this publication in new window or tab >>Collecting travel diaries: Current state of the art, best practices, and future research directions
2018 (English)In: Transport Survey Methods in the era of big data: facing the challenges, Elsevier, 2018, Vol. 32, p. 155-166Conference paper, Published paper (Refereed)
Abstract [en]

The amount of useful information that can be extracted from travel diaries is matched by the difficulty of obtaining travel diaries in a modern era where the response rate to traditional travel diary collection methods has seen a decrease in most countries. Prompted by this, a body of research has been dedicated to study how travel diaries can be collected via new methods, namely location enabled devices such as smartphones, that have a higher penetration rate (in terms of device ownerships and user attachment) and are both easier and cheaper to manage compared to traditional data collection method, e.g. paper-and-pencil, phone, or web-based questionnaires. This paper offers an overview of the current state of travel diary collection, a potential future state and a practical checklist for travel diary collection case studies. A thorough discussion on different pros and cons of travel diary collection methods and efforts needed for the convergence of methods to collect travel diaries for all demographics are provided. The practical checklist to aid researchers to organise case studies is based on the authors' experience and it is meant to raise awareness of difficulties that can be encountered while collecting travel surveys with automated and semi-automated systems, and how to overcome them.

Place, publisher, year, edition, pages
Elsevier, 2018
Series
Transportation Research Procedia, ISSN 2352-1457 ; 32
Keywords
best practices, destination, purpose inferences, travel diary collection systems, travel mode
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-241861 (URN)10.1016/j.trpro.2018.10.029 (DOI)000471307900017 ()2-s2.0-85058853296 (Scopus ID)
Conference
2017 ISCTC 11th International Conference on Transport Survey Methods, L'Esterel Resort39 Chemin Fridolin-SimardEsterel, Canada, 24 September 2017 through 29 September 2017
Note

QC 20190125

Available from: 2019-01-25 Created: 2019-01-25 Last updated: 2019-07-24Bibliographically approved
Palmberg, R., Gidofalvi, G. & Susilo, Y. (2018). Enabling Technologies to Serve the Ageing Urban Society Better (ENTRUST). In: : . Paper presented at Ny teknik i äldreomsorgen 24 maj 2018 Stockholm. Kungliga Tekniska högskolan
Open this publication in new window or tab >>Enabling Technologies to Serve the Ageing Urban Society Better (ENTRUST)
2018 (English)Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

The life span of the inhabitants of Sweden is increasing and with this comes age related cognitive diseases such as those related to dementia. Our society is not prepared to accommodate for the needs of the people who are affected by this.

The diseases related to dementia often affect the person’s ability to localize themselves and to remember previous and upcoming events. A common issue that occurs is a state called “elopement”.

Place, publisher, year, edition, pages
Kungliga Tekniska högskolan, 2018
National Category
Transport Systems and Logistics Interaction Technologies Human Computer Interaction
Research subject
Transport Science
Identifiers
urn:nbn:se:kth:diva-254185 (URN)
Conference
Ny teknik i äldreomsorgen 24 maj 2018 Stockholm
Note

QC 20190823

Available from: 2019-06-21 Created: 2019-06-21 Last updated: 2019-08-23Bibliographically approved
Abenoza, R., Cats, O. & Susilo, Y. (2018). How does travel satisfaction sum up?: Decomposing the door-to-door experience for multimodal trips. Transportation, 1-28
Open this publication in new window or tab >>How does travel satisfaction sum up?: Decomposing the door-to-door experience for multimodal trips
2018 (English)In: Transportation, ISSN 0049-4488, E-ISSN 1572-9435, p. 1-28Article in journal, Editorial material (Other academic) Published
Abstract [en]

Understanding how satisfaction with individual trip legs aggregates to the overall travel experience for different types of trips will enable the identification of the trip legs that are most impactful. For this purpose we analyze data on retrospective evaluations of entire multi-modal trip experiences and satisfaction with individual trip legs. We formulate and describe alternative aggregation rules and underpin them in theory and previous empirical findings. The results of a series of regression models show that for a large number of multi-modal trip configurations normative rules can better reproduce overall travel satisfaction than heuristic rules. This indicates that all trip legs need to be considered when evaluating the overall travel experience, especially for trips legs involving waiting and/or transferring time. In particular, weighting satisfaction with individual trip legs with perceived trip leg durations yielded the best predictor of overall travel satisfaction. No evidence for a disproportional effect of the last or most exceptional part of the trip was found. This research contributes to the literature on combining multi-episodic experiences and provides novel empirical evidence in the transport domain. 

Place, publisher, year, edition, pages
Springer, 2018
Keywords
Customer Satisfaction, Public Transport, Trip legs, Multimodal trips
National Category
Transport Systems and Logistics
Research subject
Transport Science
Identifiers
urn:nbn:se:kth:diva-200729 (URN)10.1007/s11116-018-9860-0 (DOI)2-s2.0-85041502425 (Scopus ID)
Note

QC 20170202

Available from: 2017-02-01 Created: 2017-02-01 Last updated: 2018-12-19Bibliographically approved
Liu, C., Susilo, Y. & Dharmowijoyo, D. B. (2018). Investigating intra-household interactions between individuals’ time and space constraints. Journal of Transport Geography, 73, 108-119
Open this publication in new window or tab >>Investigating intra-household interactions between individuals’ time and space constraints
2018 (English)In: Journal of Transport Geography, ISSN 0966-6923, E-ISSN 1873-1236, Vol. 73, p. 108-119Article in journal (Refereed) Published
Abstract [en]

The activity space of an individual is defined as the activity-travel environment which a traveller is using for his or her activities (Axhausen et al., 2002). It is limited by this individual's ability and resources, such as available time for travel as well as his or her anchor points. However, most existing studies have focused on single individual activity space, ignoring the fact that individuals’ activities often interact with that of his or her family members’. In this paper a multivariate model is proposed where the correlation between travel time of fathers and mothers, and the correlation between the activity space and travel time are modelled explicitly. The estimated correlations from these joint distributions provide insights into both the intra-household interactions in daily travel and the intrinsic relationships of the hidden limits in the dimensions of space and time. The travel time limits are modelled using a stochastic frontier model component, which can estimate an unobserved upper or lower limit for travel time expenditure. This limit usually refers to the maximum travel time budget or minimum travel time need, which denotes the maximum or minimum amount of travel time that an individual is willing or able to allocate per day. The concept of the confidence ellipse is used as a measure of activity space constructed from the multi-day travel diary data. It is hypothesised that the unobserved travel time limits and activity space sizes of fathers and mothers are correlated with each other, due to a similar spatial knowledge and accessibility to various facilities. The daily variations in the travel time expenditure of parents are also assumed to be correlated because of daily household task allocation and joint household travel. Data collected from a three-week household travel diary in the Bandung Metropolitan Area in Indonesia are used for estimation in this study. The estimated frontier model component shows that neither parent has reached their maximum travel time budget and/or minimum travel time need that they inherently must spend. Compared with other attributes, the perceived accessibility attributes play the most important role in influencing the activity space limits. For households with fully employed fathers, a trade-off mechanism is found in travel time expenditure between parents, which is likely due to the redistribution of household tasks. On the other hand, for households with fathers who are not fully employed, a complementary effect is found, arising from the joint travel among household members. The travel time budget and activity space limits of fathers are positively correlated with those of mothers. These findings call for the formulation of transport policies that consider the household as a unit, especially in developing countries such as Indonesia, to fulfil the mobility needs of different market segments, e.g., households with fully employed fathers and those with fathers who are not fully employed.

Place, publisher, year, edition, pages
Elsevier Ltd, 2018
Keywords
Activity space, Confidence ellipse, Intra-household, Travel time frontier, developing world, metropolitan area, modeling, multivariate analysis, travel time, Bandung, Indonesia, West Java
National Category
Civil Engineering
Identifiers
urn:nbn:se:kth:diva-247020 (URN)10.1016/j.jtrangeo.2018.10.015 (DOI)000451938900010 ()2-s2.0-85055664822 (Scopus ID)
Note

QC 20190626

Available from: 2019-06-26 Created: 2019-06-26 Last updated: 2019-06-26Bibliographically approved
Abenoza, R., Cats, O. & Susilo, Y. (2018). Investigating the nature of Public Transport service attributes. Transportation Science
Open this publication in new window or tab >>Investigating the nature of Public Transport service attributes
2018 (English)In: Transportation Science, ISSN 0041-1655, E-ISSN 1526-5447Article in journal, Editorial material (Refereed) Submitted
Abstract [en]

Classifying public transport service attributes based on their influence on overall traveler satisfaction can assist stakeholders and practitioners in introducing cost-efficient measures. To date most studies employed methods that were based on the assumption that the impact of service attributes on traveler satisfaction is entirely linear and symmetric. This study examines whether service attributes have a non-linear and asymmetric influence on the overall travel experience by employing the Three-factor theory (basic, performance and exciting factors). The analysis is conducted for different traveler segments depending on their level of captivity, travel frequency by public transport and travel mode used, and is based on a relatively large sample size collected for Stockholm County. Moreover, the estimated models control for important socio-demographic and travel characteristics that have been insofar overlooked. Results are presented in the form of a series of multi-level cubes that represent different essentiality of traveler needs which provide a useful methodological framework to further design quality service improvements that can be applied to various geographical contexts. Our findings highlight that a “one size fits all” approach is not adequate for identifying the needs of distinct traveler segments and of travelers using different travel modes. Furthermore, two-thirds of the attributes are consistently classified into the same factor category which entails important policy implications. This research deepens and expands the very limited knowledge of the application of the three-factor theory in the transport field.

Keywords
Public Transport, customer satisfaction, three-factor theory
National Category
Transport Systems and Logistics
Research subject
Transport Science
Identifiers
urn:nbn:se:kth:diva-240427 (URN)
Funder
Stockholm County Council, 20160903
Note

QC 20181218

Available from: 2018-12-19 Created: 2018-12-19 Last updated: 2018-12-19Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-7124-7164

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