air pollution kills about 175,000 people in Bangladesh every year. Not only that, but air pollution also increases the risk of non-communicable diseases such as lung cancer and otherrespiratory diseases. Motorized vehicles emit 25% of the world's carbon, which is also accelerating climate change. Walking and cycling will reduce air and noise pollution, fuel consumption as well as traffic congestion and road accidents. At the same time, it is possible to meet the need for physical activity by walking, so ...