Hanoi’s inner area is facing serious challenges of climate change and air pollution is a core concern in here. The PM2.5 dust levels (the averaged level of monitoring stations) is higher than standard levels from 1.2 to 2 time. According to research, the number of dust levels can reach up to 150 µg/m3 in Hanoi, which is three times higher than the World Health Organization's (WHO), and it is 50 µg/m3 ( https://en.vietnamplus.vn/hanoi-tops-pollution-rankings-seeks-solutions-to-improve-air-quality-post308758.vnp [1]). Thus, the city council has applied low emission zones in the inner city to improve the quality of urban environment, public health, create friendly living standards, which toward sustainable development and adapt climate change. The aim reduces the number of cars, encourages people to use public transportation and walk instead of private vehicles. This study highlights the role of pedestrian streets as a key component in Hanoi’s strategy to build effective low emission zones.