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David Carey
Town Planning and Development
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The Ghost in the Machine: How Diesel and Ammonia Supported an Explosion in Urban Population
We tend to think of cities as monuments to human ambition - the steel, the glass, the fiber optics, the finance. But ask an ecologist or an agricultural historian where modern mega cities like New York, Tokyo, or London came from and they won’t point to a construction crane. They’ll point to a tractor and a fertiliser plant. For 99% of human history, the size of a city was capped by the length of an oxcart’s journey. You couldn’t have a London of 9 million people if you neede

David
May 214 min read


Mega cities in the desert. A smart long term idea?
The growth of desert mega cities over the last 20+ years has been nothing short of explosive. Unlike traditional cities that grew organically around resources like water or trade routes, modern desert mega cities are often artificial constructs, built on the back of desalination technology, air conditioning, and massive government investment. Here is a breakdown of how these cities (primarily in the Middle East and the Southwestern United States) have grown recently, the tren

David
Mar 85 min read


The garden city movement to low density suburban sprawl
The Garden City Movement emerged from the toxic cradle of the Industrial Revolution in late 19th-century Britain. As factories multiplied, cities like London, Manchester, and Birmingham swelled with migrant workers living in unimaginable squalor—overcrowded slums with no sanitation, polluted air, and virtually no green space. The average life expectancy in some industrial cities fell to under 30 years. This urban crisis sparked numerous reform movements. Visionaries like John

David
Feb 155 min read


Le Corbusier's "Radiant City" concept. What worked and what went wrong?
Charles-Édouard Jeanneret known as Le Corusier was an architect, painter, urban planner and writer born in 1887. Dedicated to providing better living conditions for the residents of crowded cities, Le Corbusier was influential in urban planning . His ideas on urbanism were published in " Ville Radieuse" or "The Radiant City" in 1930. This was one of the most influential, and controversial, urban planning concepts of the 20th century. It was not just a design for a city but a

David
Oct 27, 20255 min read


The Five Largest World Cities in 1525 vs 2025, what has changed?
While it is hard to know precisely, the largest world cities in 1525 were probably something like: 1525 Beijing, China. Estimated...

David
Sep 13, 20252 min read


Is the City a Parasite on the Surrounding Countryside? A Historical Examination
Throughout history, cities have been both engines of progress and extractive parasites, depending on how they interact with their rural...

David
Jun 27, 20253 min read


The Invisible Lifeline: How Modern Cities Depend on Trucking
Every morning, as city dwellers sip their coffee and scroll through news feeds, an army of trucks is already at work - delivering the...

David
May 30, 20253 min read


Why Five Major World Cities Are Located Where They Are
Cities do not develop by accident - their locations are often the result of geographical advantages that facilitate trade, defence,...

David
Apr 25, 20253 min read


David Carey Town Planning and Development visits Soviet housing estate in Tbilisi, Georgia
The Nutsubidze Skybridge is part of an experimental Soviet-era housing complex in Saburtalo district of Tbilisi, Georgia. It consists of...

David
Mar 29, 20252 min read


Ports and their impact on land use
Ports are critical nodes in the global economy, serving as hubs for trade, transportation, and industrial activity. They facilitate the...

David
Feb 21, 20255 min read


Airports and their impact on the city
Airports have become defining features of modern cities, serving as gateways to the world and catalysts for economic, social, and urban...

David
Feb 1, 20255 min read


Towards better management of storm water - some photos
This article discusses how the management of storm water in urban areas has evolved over time and possible approaches for the future in...

David
Jan 8, 20253 min read


The street as a place versus a thoroughfare
The primary purpose of the street is a thoroughfare for transport within a city. It is necessary for a public space, accessible to all,...

David
Dec 31, 20243 min read


Roads and motorways
This article discusses roads and motorways and their influence on geography and human development. For most of human history, walking by...

David
Dec 18, 20244 min read


Railways
This article discusses how the railway has influenced geography and human development. The railway is a form of transport using wheeled...

David
Apr 15, 20242 min read


Rivers
This article discusses how rivers have influenced human development and civilisation. Shifts from hunter-gatherer society (the vast...

David
Apr 7, 20243 min read


Rome and Campbelltown - a comparison of two eternal cities
The image above shows a fountain in Campbelltown. It was installed as a bequest from a controversial former local solicitor, who...

David
Mar 17, 20244 min read


The metabolism of our cities
This article discusses the main factors behind the growth of our cities and how energy has driven the growth of and layout of our built...

David
Feb 19, 20245 min read


Decline of local government town planning powers - a timeline
The last post in this blog discussed state government led changes to introduce more medium density housing across the state. While...

David
Feb 9, 20247 min read


Further details released of changes to allow more low and mid-rise housing
The NSW Government has released further details of a policy intended to create low and mid-rise housing. The link can be found here. The...

David
Jan 12, 20244 min read
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