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Opinion: Singapore vs Hong Kong: for a healthier city, give people green spaces to enjoy

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Sitting in Victoria Park, I saw many smiling faces over the weekend, in stark contrast to the densely populated areas of Hong Kong. Similarly in Singapore, the appeal of the Botanic Gardens grew during the Covid-19 outbreak. Green space in an urban environment is good for recreation – and our mental health.

In London, significantly more residents sought urban green spaces during the pandemic lockdowns, especially those who lived closer to such spaces, my study found. The results, published in the Nature Mental Health journal, were based on data from two million mobile phone users.

This study, in collaboration with Assistant Professor Ke Michael Mai from the National University of Singapore (NUS) Business School, and Dr Souneil Park from Telefonica Research, also looked at the mental health and locations of 5,000 people in the United Kingdom.

We found that those living near urban green spaces experienced significantly less mental distress than those further away. These findings are relevant as more people grapple with mental health issues. There is an impetus to advocate for the preservation and creation of more green spaces in our city planning.

Post-pandemic, people in Singapore and Hong Kong have increased their visits to urban green spaces, I found in my ongoing study in collaboration with NUS research associate Alex Yeung. Consistent with the results observed in London, respondents in both Asian cities also reported a more significant improvement in their mental well-being after such visits during the Covid-19 outbreak, compared to pre-pandemic.

This underscores the critical role that urban green space plays in supporting mental health. There is an increased demand for accessible urban green space, particularly during periods of restricted mobility, when mental well-being becomes a paramount concern.

A boy with a water gun shoots at pigeons in Victoria Park, Causeway Bay, on August 26. Photo: Yik Yeung-man

Although Singapore and Hong Kong are known for sustainable urban planning, there are significant differences. (Note: country parks are excluded from the sample of urban green spaces.)

Urban green space in Singapore is less accessible than in Hong Kong. In Singapore, more than 22 per cent of public housing is beyond a 10-minute walk to an urban green space, compared to only 5 per cent in Hong Kong.

On average, the distance between public housing and the nearest urban green space in Singapore is about 572m, or a walk of six to eight minutes. In contrast, the average distance between a public rental flat in Hong Kong and the nearest green space is just 301m, or a four-minute walk.

But the quality of green space is better in Singapore. It allocates more room for its urban green spaces, which are 4.3 hectares on average compared to Hong Kong’s 0.74 hectares. Singaporeans also enjoy about 15 square metres (161 sq ft) of that green space per person, compared to 3 square metres per Hongkonger. Singapore’s urban green spaces are also more equitably distributed across its residential neighbourhoods than Hong Kong’s.

People take a morning walk at the Singapore Botanic Gardens during a phased Covid-19 lockdown on June 2, 2020. Photo: Bloomberg

Furthermore, we found that Hongkongers reported lower satisfaction with the maintenance of their urban green spaces compared with their satisfaction with accessibility.

Intriguingly, we found that public behaviour towards an urban green space is influenced by its condition and there appears to be very little compromise on the matter. Whether their local urban green space is well-maintained or has shortcomings is highly relevant in determining whether people visit.

This is distinct from the preferences of Singaporeans, who tend to visit their urban green space more often when they are satisfied with the accessibility.

Hong Kong needs urban green lungs to be a more liveable city

In other words, merely having urban green space is not enough to incentivise public visits, and in turn, support mental well-being.

These findings highlight the importance of the comprehensive planning of urban green space, to consider attributes beyond accessibility, such as quality and maintenance. The government needs to understand what is lacking and the state of public satisfaction with these spaces when shaping plans for urban greening.

Compared to London, Singapore and Hong Kong have higher population densities and the appropriate planning of urban green space is even more critical so as to maximise the positive outcomes.

While people appreciate the mental health benefits of urban green spaces, especially during the pandemic, they will not visit if they are not satisfied with them. Improving these green spaces should be prioritised in the planning and building of healthier, pandemic-proof cities.

Lee Kwan Ok is the dean’s chair associate professor and deputy head of the Department of Real Estate at the National University of Singapore (NUS) Business School. The opinions expressed here are those of the writer and do not represent the views and opinions of NUS

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