Sunday, August 31, 2025
Stuttgart’s Schlossplatz
The Evolution of City Concepts
Saturday, August 30, 2025
Kiruna - Sweden
Moving the Town
The re-development of Kiruna is a reconstruction project, as the Kirunavaara mine, run by LKAB, undermines the existing town centre. Several buildings are to be moved or demolished. The town center is to be moved 3 kilometers (1.9 mi) to the east.[29]
In 2004, it was decided that the present centre of the municipality would have to be relocated to counter mining-related subsidence.[30] The relocation was to be made gradually over the coming decade. On January 8, 2007, a new location was proposed, northwest to the foot of the Luossavaara mountain, by the lake of Luossajärvi.[31]
The first actual work on moving the town was done in November 2007, when work on the new main sewage pipe started.[32]
In the same week, the first sketches for the layout of the new part of the town became available.[33] The sketches include a travel centre, the new locations for the city hall and the church, an artificial lake, and an extension of the Luossavaara hill into the city.[34] The location of the new section of the E10 was still uncertain, as was the location of the railway and the railway station. A more official sketch was published early in spring 2008, which was then discussed with various interest groups before a further version was to be produced.
In June 2010, the municipal council decided that the town would be moved eastwards (to 67°51′1″N 20°18′2″E), in the direction of Tuolluvaara, instead of the proposed northwestern location.[35] The moving of the town was started in 2014, and the plan describes a process that continues to 2100.[36] In the years 2012-2013, an international architectural competition concerning the vision, strategy, and design of a new city centre for a new Kiruna was arranged by the Municipality of Kiruna in partnership with the Swedish Association of Architects. White Arkitekter AB, based in Gothenburg, together with Ghilardi + Hellsten Arkitekter, based in Oslo, Spacescape AB, Vectura Consulting AB, and Evidens BLW AB, won the competition with their masterplan and strategy for moving the city. The competition team was led by White Arkitekter AB, lead architect Mikael Stenqvist, SAR/MSA, in collaboration with Ghilardi + Hellsten Arkitekter, lead architect Ellen Hellsten.[37] Together with researchers from Luleå and Delft universities, it envisages a denser city centre with a greater focus on sustainability, green and blue infrastructure, pedestrians, and public transport rather than automobiles.[38] In 2018, the Swedish government announced that it would help arrange replacement work for radio corporation Radiotjänst after the city had been moved from its original location.[39]
Starting in 2013, Danish explorer and photographer Klaus Thymann began a long-term project documenting the resettlement of the town. Using GPS-tagged imagery, he has returned multiple times since, replicating precise locations to show the changing landscape.[40] In 2017 Thymann returned again to Kiruna to document the redevelopment of the town for Bloomberg Businessweek.[41]
In August 2025, Kiruna Church was relocated towards the new centere as part of the LKAB town move.[42] The 113-year-old building is protected by the Sweden Cultural Heritage Act and was transported in whole to prevent damage.
Friday, August 29, 2025
Galloping Gertie
“Galloping Gertie” – A lesson every engineer should remember
On November 7, 1940, the Tacoma Narrows Bridge collapsed just four months after its grand opening. At the time, it was the third-longest suspension bridge in the world.
The reason? Not faulty materials. Not poor construction.
But aeroelastic flutter — the destructive dance between wind and structure.
Winds of only ~65 km/h caused the bridge to twist and sway violently until it tore itself apart.
No lives were lost (except one dog), but the event became one of the most iconic engineering failures ever captured on film.
Why does it still matter today?
Because it taught us that:
Structures don’t just carry static loads — they live in a dynamic world.
Aerodynamics, resonance, and vibration are as critical as strength.
Every failure is a lesson that reshapes engineering practice.
The Tacoma disaster revolutionized how we design bridges and large structures. Wind tunnel testing, computational fluid dynamics, and aeroelastic modeling are now standard parts of civil and mechanical engineering.
Sometimes progress comes not from success, but from the lessons of failure.
Real Town
Each chapter explains key planning and urban design principles with real-world examples. RoadWork exercises at the end of each chapter – done by walking around neighborhood streets – will help you apply what you have learned, see with new eyes, and explain it to your neighbors and co-workers.
Real towns and neighborhoods are the places where most of us live – small towns, downtown neighborhoods, older or new suburbs, high-rises, or historic districts. Places with history, with families, with people who plan to stay. This book is for people who care about their communities and want to make them better. Many of the ideas have their origins in New Urbanism – a movement best known for creating successful ‘New Towns’ on undeveloped land in outlying areas, or for large urban infill projects. Real Towns gives you the tools to apply these same traditional neighborhood design principles to existing communities.
In the current national climate of scarce resources and increased competition for decreasing federal and state funding, communities that create, embrace, and act on a shared vision will be leading the pack. To make your community work better, grow smarter, and maintain its health over time, you can build a coalition of neighbors, business, civic, and government leaders and 1) download and read the book, 2) do the RoadWork together, 3) make a plan, 4) make it happen, and 5) stick with it over time.
Why MXDs??
A longitudinal study across 36 US regions and 710 mixed-use developments reveals measurable climate benefits that improve over time:
Key findings:
- MXDs generate 33% less VMT than conventional developments
- Up to 80% reduction in some regions
- 50% fewer vehicle trips over time as developments mature
- People walk more in MXDs with rich built-environment features
- 6x lower GHG emissions per trip in compact regions vs sprawling areas
Planning implications:
- Job-housing balance directly reduces driving
- Intersection density + transit access = fewer car trips
- Walking trips alone explain 25% of VMT variation
- Regional context matters - compact regions see dramatic benefits
Time to update those zoning codes.




✅ 1990s–2000s → Digital & Knowledge Cities
✅ 2000s → Sustainable & Green Cities
✅ 2010s → Smart & Resilient Cities
✅ Mid-2010s → Human-Centered focus
✅ Late 2010s–2020s → Healthy & 15-Minute Cities
✅ 2020s–Future → Responsive, Regenerative, AI-Driven
Cities are constantly evolving — from being digitally connected, to sustainable and resilient, to people-centered and health-focused. Now, we are moving toward cities that are responsive, regenerative, and AI-driven.
Which of these concepts do you think will shape the next decade of urban life?