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Dive into the research topics where Chengxi Liu is active.

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Featured researches published by Chengxi Liu.


Transport Reviews | 2017

Weather variability and travel behaviour – what we know and what we do not know

Chengxi Liu; Yusak O. Susilo; Anders Karlström

ABSTRACT Given that severe weather conditions are becoming more frequent, it is important to understand the influence of weather on an individual’s daily activity-travel pattern. While some previously rare events are becoming more common, such as heavy rain, unpredicted snow, higher temperatures, it is still largely unknown how individuals will change and adapt their travel patterns in future climate conditions. Because of this concern, the number of research studies on weather and travel behaviour has increased in recent decades. Most of these empirical studies, however, have not used a cost–benefit analysis (CBA) framework, which serves as the the main tool for policy evaluation and project selection by stakeholders. This study summarises the existing findings regarding relationships between weather variability and travel behaviour, and critically assesses the methodological issues in these studies. Several further research directions are suggested to bridge the gap between empirical evidence and current practices in CBA.


Transportation Research Record | 2015

Evolution of Satisfaction with Public Transport and Its Determinants in Sweden: Identifying Priority Areas

Oded Cats; Roberto F. Abenoza; Chengxi Liu; Yusak O. Susilo

Measurement and analysis of satisfaction with public transport services facilitate service performance monitoring, market analysis, benchmarking, and the identification of priority areas. The systematic and regular collection of information concerning satisfaction enables investigation of how passengers’ satisfaction and its determinants change over time. These changes may be driven by changes in service quality or shifts in passengers’ expectations and preferences. This study analyzed how satisfaction with public transport and its determinants evolved over time in Sweden in the years 2001 to 2013. The determinants of satisfaction were identified by factor analysis and the estimation of multivariate satisfaction models. The superposition of these findings culminated in a dynamic passenger satisfaction priority map that allowed the identification of priority areas on the basis of observed trends in satisfaction with service attributes and their respective importance. The deterioration of overall satisfaction with public transport in Sweden in recent years has been driven by a decrease in satisfaction with customer interface and length of trip time. These two service aspects, as well as operation, were found to be key determinants of overall satisfaction that users consistently rated among the least satisfactory. The results of this study will support service providers in designing measures that will foster satisfaction in the future.


Transportmetrica | 2017

Jointly modelling individual’s daily activity-travel time use and mode share by a nested multivariate Tobit model system

Chengxi Liu; Yusak O. Susilo; Anders Karlström

ABSTRACT In this study, a nested multivariate Tobit model is proposed to model activity and travel time use jointly. This proposed model can handle: (1) The corner solution problem; (2) time allocation trade-offs among different types of activities; and (3) travel being treated as a derived demand of activity participation. The model is applied to the Swedish national travel survey (NTS). Evidence of the potential positive utility of travel time added on non-work activity time allocation in the Swedish case is also found. The proposed model is compared to an MDCEV model specification. The results show clear differences in marginal effect estimates. In terms of prediction, the nested multivariate Tobit model shows a slightly worse performance on the hit rate measure than the MDCEV model combined with a stochastic frontier model, but shows a slightly better performance on the SMAPE measure.


Transport Policy | 2015

The influence of weather characteristics variability on individual's travel mode choice in different seasons and regions in Sweden

Chengxi Liu; Yusak O. Susilo; Anders Karlström


Journal of Transport Geography | 2014

Examining the impact of weather variability on non-commuters’ daily activity–travel patterns in different regions of Sweden

Chengxi Liu; Yusak O. Susilo; Anders Karlström


Transportation Research Part A-policy and Practice | 2015

Investigating the impacts of weather variability on individual’s daily activity–travel patterns: A comparison between commuters and non-commuters in Sweden

Chengxi Liu; Yusak O. Susilo; Anders Karlström


Transportation | 2016

The influence of parents’ travel patterns, perceptions and residential self-selectivity to their children travel mode shares

Yusak O. Susilo; Chengxi Liu


Transportation | 2016

Measuring the impacts of weather variability on home-based trip chaining behaviour: a focus on spatial heterogeneity

Chengxi Liu; Yusak O. Susilo; Anders Karlström


Transportation Research Record | 2015

Identifying priority areas based on a thirteen years evolution of satisfaction with public transport and its determinants

Oded Cats; Roberto F. Abenoza; Chengxi Liu; Yusak O. Susilo


Transportation Research Part D-transport and Environment | 2016

Estimating changes in transport CO2 emissions due to changes in weather and climate in Sweden

Chengxi Liu; Yusak O. Susilo; Anders Karlström

Collaboration


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Yusak O. Susilo

Royal Institute of Technology

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Anders Karlström

Royal Institute of Technology

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Maria Börjesson

Royal Institute of Technology

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Roberto F. Abenoza

Royal Institute of Technology

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Oded Cats

Delft University of Technology

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Dimas Dharmowijoyo

Royal Institute of Technology

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Joel P. Franklin

Royal Institute of Technology

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