Chengxi Liu


Picture of Chengxi Liu

Research results from Chengxi


Assessing the impacts of collection-delivery points to individual's activity-travel...

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...

Jointly modelling individual’s daily activity-travel time use and mode share by a nested...

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)...

Säkerhetseffekten av ökat cyklande: kartläggning av nuläget för att planera för framtiden

During the last decades, cycling has been highlighted as a travel mode with many positive qualities. The documents of Swedish national strategy reveal a trend of an increased cycling. At the same time, it is important that the safety of cyclists...

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

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,...