Azwan Nazamuddin

I’m Azwan, a doctoral student in the Smart Mobility programme at Hiroshima University, in the Urban and Transportation Planning Lab under Prof. Makoto Chikaraishi.

My research is about constraint heterogeneity in dynamic choice models. A day is assembled out of what is possible, not only out of what is wanted, and what is possible differs from person to person — where you live, whether you have a car, who you collect, when you are due somewhere. A model that cannot carry that difference reads constraint as preference, and the error lands in accessibility and welfare. Models that can carry it exactly have had to pay one value function per person. My work is about what that difference actually costs, and which differences between people genuinely need their own computation.

My Master’s thesis (2026) built the computational ground for this: exact estimation of activity-based dynamic discrete choice models at city scale, by keeping only the states a person can physically reach and sharing one solve across everyone who faces the same constraints. Ongoing notes and reports are at azwanazamuddin.github.io/reports.

Before coming to Japan I studied Urban and Regional Planning at ITB in Bandung, and did research with the Urban Planning and Design Research Group there on where ride-hailing drivers wait between orders.