The Most Efficient Transportation System in the World: Seoul


  • Rapid population increase in Seoul, South Korea, as a result of post-war migration and an economic boom in the 1950’s.
  • There are 50 times more cars on Seoul’s roads now than in the 1970’s.

Solution: Smart Transportation Management

  • In 2004, the city began to overhaul it’s public transportation and road system through the use of data collection and consequently, through monitoring public transport and traffic in real-time.
  • The Seoul Traffic Vision 2030 was presented in 2013, including public transport, roads, side-walks, city railway systems as a systemic recommendation for improvement.

“By 2030, the city of Seoul will have evolved into a city with a highly convenient transport system, where people will not need to rely on their cars.”  – Seoul Traffic Vision 2030

  • Smart ticket systems and cameras monitor subway congestions, road-based sensors monitor traffic flows, and an in-built GPS system monitors taxi movement in the city, which feed into a central system used to post updates on digital roadside billboards and traffic reporting platforms, such as online.
  • Through this, buses, cars and trains can be maneuvered in the most efficient way.
  • The city has also focussed on pedestrianization, getting more people out of cars and onto walkways. An example of this is the Seoullo 7017 walkway, which makes use of an abandoned highway overpass as a new pedestrian route.

Article: How Seoul is using technology to avoid “traffic hell” 

Seoul Traffic Vision 2030: Website


Seoullo 7017


  • All commuters
  • Municipal government
  • City planners
  • Business owners (large employers of the commuter base population)

Steps to Implementation: 

  1. Sensor installation
  2. Overall system analyses (data collection)
  3. System re-design
  4. Infrastructure improvements
  5. Further sensor installation in new systems
  6. Training of transport officials
  7. Public awareness of alternative routes and optimal travel methods, and availability of platforms to independently track these
  8. Adoption of system commuter recommendations
  9. Measurement and monitoring
  10. Additional installations as technology improves

Comment on Plastic Bottle Concrete: 

Another article on this topic (Link) says that the plastic needs to be irradiated with gamma rays in oder to change the crystalline structure (ie. more cross linkages in the lattice lead to stronger concrete when mixed with plastic). It would be interesting to analyze how much this irradiation process would cost on an industrial scale when incorporated into cement production.



How to monitor water smartly

1: Area of sustainability category: water infrastructure

Maintaining balanced water levels is critical to avoid flooding in residential areas and conserve enough water for the dry season. And the technician has to drive back and forth between 11 lakes and make sure the levels don’t get too high.”

2: “Florida city employs Sensus tech for remote water monitoring

  • Enables proactive and preventative maintenance
  • Enables quick resolution of equipment failures
  • Decreases the need to deploy field crews
  • No additional power line infrastructure is necessary

3: Implementation

  • Identify sites for installation
  • Develop contracts with building owners
  • Install sensors
  • On-site Testing and Implementation

4: Stakeholder

  • Municipal
  • Technicians
  • City residents


Comment on “Plastic Bottle Concrete

Manufacturing concrete generates 4.5 percent of the world’s human-induced carbon emissions. So far, substituting 1.5 percent of concrete with irradiated plastic has been proved to improve the mixture’s strength significantly. It means 0.0675 percent of the world’s carbon dioxide emissions is deducted. If this technology is implemented on a global scale, the impact could be significant.


Plastic Bottle Concrete

1) Sustainability problem: Pollution


  • MIT students have discovered a way to produce concrete that is close to 20% stronger than traditional concrete by incorporating used plastic bottles. The bottles are pulverized and then added into the concrete.
  • Concrete is the most used material for construction and by incorporating bottles into them, waste going to landfills and the pollution that causes will decrease. Furthermore, buildings will become stronger and may last longer.
  • This technology also uses less cement to actually construct the concrete, which in turn leads to fewer carbon dioxide emissions.



  • Concrete manufacturers
  • Building contractors
  • Landfills



  1. Make concrete manufacturers gain access to plastic bottle pulverization machines.
  2. Educate the manufacturers on how to create this.
  3. Incentivize contractors to use this new concrete in their new building projects.


Article reference:


My comment on another article

“VR is an exciting and interesting new technology with a lot of potential. One great option is to use VR to host and attend business meetings around the world. This will actually also be an environmentally friendly way of doing so, as the people attending the meeting won’t be required to travel far to go to the meeting. A large portion of today’s airplane traffic is due to business travelers attending one or two meetings in another city or country. If these meetings could be taken from the office instead, a lot of carbon emissions will be spared. In addition, busy businessmen and -women wouldn’t need to leave their families for an extended period of time several times a month, they could just attend the meeting during a normal day at the office.”

UNI: ms5584

Screenshot 2017-11-01 16.24.14Sustainability Problem: sustainable and affordable urban home construction

As the world is becoming more urbanized, there is a growing need for more affordable and environmentally responsible housing. Constructing homes on urban infills is often costly, time consuming and brings unwanted disturbance to the surrounding communities.

Sustainable Technology: prefabricated houses 

Plant Prefab manufactures custom and single/multifamily homes that are high-quality, healthy, customized and durable. With faster built time, less cost, more reliability, less disruptions and wastes, it provides great potentials to address the challenges of urban home construction.

  • The company provides low cost homes in half the time and with less waste than traditional site-based contractors. Modules are built in assembly lines just like those in an ship or plane building factory, which can be more efficient than building on-site. It is also cost effective as the factories are not located in an expensive labor market and the company uses full-time staff rather than sub contractors.
  • The company is the first prefabricated home factory in the nation dedicated to sustainable construction, materials, processes, and operations. It also uses materials that minimize or eliminate off-gassing and to avoid toxics.
  • The technology and processes are commercially ready as the company’s first home is the first certified LEED Platinum in the nation and they built the first multi-family project certified LEED Platinum in northern California.

Organizational Stakeholders that Will Use the Technology:

  • Developers and architects
  • Individual home owners
  • City planners

First 3 Steps in Deploying the Technology:

  1. Target marketing to developers in the urban in-fill market in constrained areas for cities like New York and San Fransisco.
  2. Showcase company’s certified LEED homes on homebuilder’s magazines.
  3. Build awareness and knowledge of the company among architect communities through workshops of the software and design process.


Plant Prefab

Plant Prefab raises $3 million from Obvious Ventures for durable, sustainable homes 

High-end, Sustainable, Prefab Homes are Becoming a Big Business

Comment on other blogpost: Ocean Cleanup

Solar-powered Vertical City is a self-sustaining, green-infused tower planted into the ocean floor

  1. Sustainability Problem: With rising sea levels and the ever-increasing population growth, alternative living solutions are in dire need. Italian architect Luca Curci has just unveiled a design that envisions a soaring zero-energy tower infused with greenery on each level that will be planted into the sea floor, resulting in what could be the future of self-contained architecture.
  2. The Vertical City tower is designed to reach a height of 2,460 feet with 180 floors. The tower will be layered with a membrane of photovoltaic glass to ensure there is sufficient energy for the entire building. Other features are as follows:
    • 190,000 square feet of mixed-use floor surface
    • Natural lighting due to perforated slots throughout the exterior
    • 66,000 feet of outdoor green space
    • Access possible through water, land or air


Solar Vertical City is a self-contained, green-infused tower planted into the ocean floor| Inhabitat – Green Design, Innovation, Architecture, Green Building

Vertical City | Luca Curci Achitects

  1. Stakeholders:
    • Citizens around the world
    • The Gulf countries
    • Global and Local government
    • Building contractors and architects
    • Engineers
  2. Next steps:
    • Do a feasibility study and engage with stakeholders to improve relations
    • Reach an agreement on costs and economic outlook
    • Initiate the project or decrease scale of project (if denied by government)


By: Timothy Wiranata

UNI: tw2618

Comment on OLLI – the self-driving electric mini bus:

“A very innovative idea! However, my concern is, how would Olli cater to many different passengers’ destinations? Will it be able to find the most optimal route to drop each passenger (like Via)? Or will it drop the passengers one by one according to when they stepped into the bus?”


3D Printing – Disruption in Construction Industry

Sustainability Problem: Construction Waste

Construction wastes have become a pressing issue in many developing countries and have adverse effects on environment, economy and social aspects. Illegal dumping is a common issue created from the physical construction waste and besides that non physical waste like cost and time overruns are not properly addressed among the construction players.


3D printing (additive printing or additive manufacturing) is a production technique for creating solid objects from a digital file uploaded to a 3D printer. The printer reads the file and lays down successive layers of materials, such as plastics, resins, concrete, sand or metals, until the entire object is created. Like an inkjet printer, a 3D printer has containers of a raw material, often plastic based, that it extrudes in a precise pattern to lay down layers.

  • Extremely large 3D printers have already been built that can use concrete-like materials to fabricate a variety of large structural components and even entire buildings, such as emergency huts and residences.
  • Most printers can only extrude one type of material at a time, but more advanced printers have been built that can extrude multiple materials, providing a level of speed and flexibility that was not present before. Components can be printed offsite and shipped to the jobsite where they will be erected with steel reinforcement. Alternatively, the printer can be transported to a jobsite to fabricate on demand.
  • Benefits of 3D printing include: reduced materials usage, increasing the ability to design a larger variety of customized homes and buildings, savings of 30%-60% in construction waste, reduction of production time by 50%-70%, reduction of construction labor costs by 50%-80%
  • Currently, the types of materials available for use in these printers are rather limited. In addition, many printers may be limited to a single type of material. Additionally, transporting printers to and from site could be problematic as could safe onsite printer storage.

Stakeholders: City civil and construction authorities, builders, contractors, labor,  companies manufacturing 3D printers, architects, etc.

Deployment: Before the commercial operation:

  • Test 3Printer for on-site small construction jobs
  • Engage architects, designers, builders and contractors and addressing forth coming issues and opportunities
  • Civil and construction authorities to lay building codes and guidelines
  • Address reduction in labor issues

Source: and

Comment on other blog:


Advanced IoT controls for commercial real estate

1) Sustainability Problem:

All businesses have to aggressively control costs but a huge business such as Chase Bank  with multiple retail and corporate locations (and their accompanying large real estate footprints) spend millions of dollars on facility fees such as utilities. Some locations have advanced lighting and intelligent building mgt systems, but this is inconsistent across the fleet of properties.
Last year Current by GE began a partnership with Chase to install LED lighting in 5000  branches across 25 million square feet.”Current estimates that, once completed, the project could reduce the branches’ lighting-related energy use by more than 50 percent – equal to taking nearly 27,000 cars off the road.”

This July, in Phase 2, Current incorporated data and technology like Smart Irrigation technology from Weathermatic and other partners into an IoT platform called Predix. The new sensors and controls will allow for reductions in water usage from irrigation systems by 20 percent. In addition, electric and gas consumption will be reduced by 15 percent.

The overall system provides visibility into HVAC and energy usage, giving facilities managers tools to measure performance against expectations and adjust quickly.
Category: Energy & Buildings

2) Technology Summary:

Article: JPMorgan partners with GE’s Current to reach lofty environmental goals
Website: CNBC
Tags: #energy efficiency #IoT

3) Organizational stakeholders

  1. Client: Chase Bank
  2. System Aggregator: Current by GE
  3. Partner: Weathermatic
  4. Municipality (clearing municipal ordinances)

4) Steps in deploying this technology

  1. Establish parameters/governance for technology buildout
  2. Ensure supply chain in place for very large order
  3. Retain local resources to install sensor technology in retail locations across whole service area
  4. Aggregate/Test/QA data streams coming from all discrete locations
  5. Establish measurement and evaluation protocols so learnings can be fed back into future facility operations decision-making

Related Resources:

Equipment providers: 

Uni: jz2805