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Urban design has been shown to play a vital role in promoting the health and wellbeing of urban citizens. However, studies of microscale urban design are underrepresented in comparison with macroscale urban design, especially from low- and middle-income countries in Asia, where urban forms are traditionally compact, complex and with multiple layers and varied urban typologies. The study evaluated microscale urban design qualities of streets (n = 40) across five urban typologies in Hanoi—a typical city in a low- and middle-income country in Asia. The study found that urban typologies and their characteristics have particular impacts on urban design qualities. Old and high-density urban typologies tend to report higher urban design qualities than modern and low-density typologies. Urban design qualities are also significantly associated with the number of pedestrians on the streets. Compared to Western cities, the urban design qualities in Hanoi are substantially different, especially in terms of imageability and complexity, reflecting the differences in urban design and cultural context between cities from various regions. Overall, the study contributes to our understanding of urban design circumstances in Hanoi, providing policymakers, planners, urban designers and architects with important insights for sustainable urban design policies, strategies and interventions.

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Geographically located on the central coastal plain of Vietnam, with low, flat topography, Ha Tinh City has an urban architecture which interwoven closely with very characteristic rural areas. In 2017-2021, we conducted a research project on building a system of green architecture criteria and proposed architectural design solutions for sustainable small-scale housing in Ha Tinh City in the context of climate change. The research project has conducted surveys, interviews and measurements of climate data at 195 representative houses in 4 typical urban areas of the city. Based on very detailed survey results, combined with the traditional vernacular experience gained from local experts and residents, we have gradually analyzed and assessed the effects of climate change on houses and human activities, from which to build a set of criteria to guide people to build or renovate their homes in the direction of green vernacular architecture which is more sustainable and better adapt to climate change in Ha Tinh.