- Freight transport, logistics and supply chain management: city logistics, tourism logistics, green logistics, emergency relief logistics, and construction logistics
- Modelling passenger travel demand, freight transport demand and supplier behaviour; especially in non-motorised transport, natural disaster and elderly residents
- Choice behaviour models; activity-based travel demand and discrete choice models
- Chief Executive Reviewer for the 10th National Transportation Conference, Chiang Mai, Thailand, 17-18 December 2014
- Paper reviewer/referee from 2007 to Present for, for example, Transportation Research Part E: Logistics and Transportation Review, Journal of Transport Geography, Journal of Tourism Management, Transportmetrica A: Transport Science, Transportation Letters: the International Journal of Transportation Research, International Journal of Production Research, and International Journal of Shipping and Transport Logistics.