Abstract
Urban Green spaces explore innovative approaches to increase the quality of urban settings, enhance livability and promote sustainable lifestyles. They provide environmental benefits through their effects on negating urban heat, increase comfort and the cooling impact of surrounding area. Therefore, it is very important to understand the mechanisms by which these benefits accrue. There is, thus, a need for proper planning of urban greenery to increase the benefits sought with the needs of the community and the functionality that the urban green space will serve. In Dhaka the overall situation of urban greenery and Park greenery is in a very poor state. In this research three small parks in the planned residential area of Uttara have been selected to find out their cooling effect and the level of comfort they exert on community people. Simulation studies were also done, to check the environmental performances of the Parks and on their surroundings. The analysis identifies that these Parks have an impact, the intensity of which depends on the type and quality of its vegetation, its design parameters, connectivity and of course on surrounding urban morphology. Thus, the paper offers a planning for urban park design for planned areas of Dhaka city.
Highlights
The urban green is an urbanistic instrument which is one of the most important aspects of livable communities
Over all area [90%] of the park area is covered by green grass and Park periphery is shaded by various trees [only 10%] of which Wide and Medium canopy trees like Jarul., Mehgani, Banyan, Shishu, Ipil-Ipil
In this research it is evident that urban green spaces, even very small in size, have a strong cooling effect and improve the comfort level of the users
Summary
The urban green is an urbanistic instrument which is one of the most important aspects of livable communities. If appropriately planned and integrated into urban design, green spaces develop its own microclimate and it can contribute to the comfort of citizens and balance between natural and man-made environment These spaces in the city act like its lungs, besides being used as active recreational and leisure areas for its citizens. Urban green spaces can act as 'Park Cool Islands' by cooling air [fig 1]and provide relief from the “Heat Island Effect” caused by the heat-trapping quality of asphalt, concrete and building materials. They help to improve the physical climate by increasing humidity, lowering temperatures and introduce more pleasant odors to the city; capture dust and gases
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