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Exploration of Urban Environment GEO 507 Lecture 1 Chapter 1&2 What is a City? Maximum concentration for the power and culture of a community is called city. What makes a city Liveable? Livable cities: robust and complete neighbourhoods, accessibility and sustainable mobility, a diverse and resilient local economy, vibrant public spaces, and affordability. The Liveability Ranking in 140 cities around the world. A rating of relative comfort is assigned across five broad categories: stability; healthcare; culture and environment; education; and infrastructure. What makes city Walkable? A center: Walk able neighbourhoods have a center, whether it's a main street or a public space. People: Enough people for businesses to flourish and for public transit to run frequently. Mixed income, mixed use: Affordable housing located near businesses. Parks and public space: Plenty of public places to gather and play.
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Pedestrian design: Buildings are close to the street; parking lots are relegated to the back. Schools and workplaces: Close enough that most residents can walk from their homes. Complete streets: Streets designed for bicyclists, pedestrians, and transit. North American, Australian and Canadian cities, which were built for cars, have the challenge of retrofitting walking infrastructure. Older European cities, which were built with walking in mind, have good fabric. What is Resilient City? A Resilient City is one that has developed capacities to help absorb future shocks and stresses to its social, economic, and technical systems and infrastructures so as to still be able to maintain essentially the same functions, structures, systems, and identity Why it is important? We need cities both socially and economically. Economics an estimated 80% of global GDP is generated in cities. They are central to global economic development and will drive the future. The cost if we don’t – Between 2000 and 2012, natural disasters including weather, health and seismic events caused over £.1.1 trillion in global damages. Growth in the urban world – reports suggest that 70% of the world’s population will live in cities by 2050. This figure is up about half from 2009. Every second, the world’s cities grow by two people. If we fail to improve urban resilience, the price we pay will be enormous. In future decades, as more people migrate to the cities, the cities’ infrastructures will be under even more pressure. In turn, when the unexpected does occur, the cost of the damage will plummet beyond any prediction we could make today. Is liveability and resiliency the same thing? No liveability concerned as a worth living place. Fit to live in. However, resiliency is the capacity to recover quickly from difficulties; toughness and the ability of a substance or object to spring back into shape; elasticity. These difficulties can be named as chronic stress and acute shocks.
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