JH
J. Harkema
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Urban heat stress is an increasing challenge in Dutch cities such as Delft. This heat in urban areas is largely due to the extensive presence of paved surfaces. A substantial proportion of these paved surfaces is located within private gardens. Therefore, this thesis focuses on increasing vegetation in private gardens in Delft. Two paved neighbourhoods are central. Voordijkshoorn, a highly educated, high-earning neighbourhood and Afrikabuurt-West a average educated, average- to lower- earning neighbourhood.
The ecological and social benefits of urban vegetation are well recognised; however, a significant intention-action gap exists among garden owners regarding greening practices. This graduation project follows a research-for-design approach to bridge this gap by developing a strategy for the Municipality of Delft and Klimaatmaat. Through a systematic literature review, door-to-door surveys in two diverse neighbourhoods (Afrikabuurt-West and Voordijkshoorn), and expert interviews, the study identified key drivers such as biodiversity and joy, alongside major barriers including maintenance, costs, and a lack of gardening skills.
Comparing these drivers and barriers with existing municipal policies revealed gaps in practical support for garden maintenance and emotional motivation, like the joy of butterflies, birds, and bees in a green garden. These findings informed the design of the final strategy. The campaign 'More Life in Your Garden', integrates a brochure featuring five low-maintenance, biodiverse garden plans with a proposed green subsidy.
This strategy is tested based on the Theory of Planned Behaviour, which indicated that the intervention creates a strong positive attitude and high perceived behavioural control among residents of both neighbourhoods. However, the intention to act varied significantly per neighbourhood, remaining neutral in lower-income areas while being high in more affluent ones. These findings suggest that while the strategy successfully bridges the intention-action gap for some, future iterations must further address this gap for others who are not socially and economically advantaged, in order to green private gardens equitably and effectively, and thereby reduce heat stress in Delft. ...
The ecological and social benefits of urban vegetation are well recognised; however, a significant intention-action gap exists among garden owners regarding greening practices. This graduation project follows a research-for-design approach to bridge this gap by developing a strategy for the Municipality of Delft and Klimaatmaat. Through a systematic literature review, door-to-door surveys in two diverse neighbourhoods (Afrikabuurt-West and Voordijkshoorn), and expert interviews, the study identified key drivers such as biodiversity and joy, alongside major barriers including maintenance, costs, and a lack of gardening skills.
Comparing these drivers and barriers with existing municipal policies revealed gaps in practical support for garden maintenance and emotional motivation, like the joy of butterflies, birds, and bees in a green garden. These findings informed the design of the final strategy. The campaign 'More Life in Your Garden', integrates a brochure featuring five low-maintenance, biodiverse garden plans with a proposed green subsidy.
This strategy is tested based on the Theory of Planned Behaviour, which indicated that the intervention creates a strong positive attitude and high perceived behavioural control among residents of both neighbourhoods. However, the intention to act varied significantly per neighbourhood, remaining neutral in lower-income areas while being high in more affluent ones. These findings suggest that while the strategy successfully bridges the intention-action gap for some, future iterations must further address this gap for others who are not socially and economically advantaged, in order to green private gardens equitably and effectively, and thereby reduce heat stress in Delft. ...
Urban heat stress is an increasing challenge in Dutch cities such as Delft. This heat in urban areas is largely due to the extensive presence of paved surfaces. A substantial proportion of these paved surfaces is located within private gardens. Therefore, this thesis focuses on increasing vegetation in private gardens in Delft. Two paved neighbourhoods are central. Voordijkshoorn, a highly educated, high-earning neighbourhood and Afrikabuurt-West a average educated, average- to lower- earning neighbourhood.
The ecological and social benefits of urban vegetation are well recognised; however, a significant intention-action gap exists among garden owners regarding greening practices. This graduation project follows a research-for-design approach to bridge this gap by developing a strategy for the Municipality of Delft and Klimaatmaat. Through a systematic literature review, door-to-door surveys in two diverse neighbourhoods (Afrikabuurt-West and Voordijkshoorn), and expert interviews, the study identified key drivers such as biodiversity and joy, alongside major barriers including maintenance, costs, and a lack of gardening skills.
Comparing these drivers and barriers with existing municipal policies revealed gaps in practical support for garden maintenance and emotional motivation, like the joy of butterflies, birds, and bees in a green garden. These findings informed the design of the final strategy. The campaign 'More Life in Your Garden', integrates a brochure featuring five low-maintenance, biodiverse garden plans with a proposed green subsidy.
This strategy is tested based on the Theory of Planned Behaviour, which indicated that the intervention creates a strong positive attitude and high perceived behavioural control among residents of both neighbourhoods. However, the intention to act varied significantly per neighbourhood, remaining neutral in lower-income areas while being high in more affluent ones. These findings suggest that while the strategy successfully bridges the intention-action gap for some, future iterations must further address this gap for others who are not socially and economically advantaged, in order to green private gardens equitably and effectively, and thereby reduce heat stress in Delft.
The ecological and social benefits of urban vegetation are well recognised; however, a significant intention-action gap exists among garden owners regarding greening practices. This graduation project follows a research-for-design approach to bridge this gap by developing a strategy for the Municipality of Delft and Klimaatmaat. Through a systematic literature review, door-to-door surveys in two diverse neighbourhoods (Afrikabuurt-West and Voordijkshoorn), and expert interviews, the study identified key drivers such as biodiversity and joy, alongside major barriers including maintenance, costs, and a lack of gardening skills.
Comparing these drivers and barriers with existing municipal policies revealed gaps in practical support for garden maintenance and emotional motivation, like the joy of butterflies, birds, and bees in a green garden. These findings informed the design of the final strategy. The campaign 'More Life in Your Garden', integrates a brochure featuring five low-maintenance, biodiverse garden plans with a proposed green subsidy.
This strategy is tested based on the Theory of Planned Behaviour, which indicated that the intervention creates a strong positive attitude and high perceived behavioural control among residents of both neighbourhoods. However, the intention to act varied significantly per neighbourhood, remaining neutral in lower-income areas while being high in more affluent ones. These findings suggest that while the strategy successfully bridges the intention-action gap for some, future iterations must further address this gap for others who are not socially and economically advantaged, in order to green private gardens equitably and effectively, and thereby reduce heat stress in Delft.