maandag 17 februari 2014

Greening the urban environment: Green roofs for city buses.

Nowadays, it’s all about greening the urban environment. A peculiar way to do so, is by sticking an air-purifying garden on top of a moving bus!

In our current sustainability-driven society, people are more interested in making their city greener. But these green areas are not always available…

Marc Granen found a solution to this spatial problem by conceiving the idea of a garden on the rooftop of a public bus. The main idea is to convert existing spaces in the city into green spaces.  His mission is to expand the garden area in urban environments, increase the absorption of CO2 and give public transport a new ecological and tourist attraction.

A side benefit of these green rooftops is that they cause the temperature inside the bus to decrease by 3.5 degrees Celsius, thus reducing the amount of fuel necessary to run the air-conditioning.  

The major drawback of this idea is the fact that the garden on top of the bus significantly increases the weight of the bus, thereby increasing the fuel consumption. This additional weight also means that the bus can transport less passengers, leading to more fuel consumption per passenger mile.

We believe that these gardens are a fun idea and - let’s face it - they look awesome! (Check out the video below) But we doubt that the benefits in terms of absorption of CO2 will transcend the negative effects of additional fuel consumption and exhaust of CO2.

Can you imagine these buses driving around in Ghent?

Click here to read more about this subject.

Ann-Sophie, Hélène & Sofie

1 opmerking:

  1. What a great idea! That reminds me of the thesis of a friend of mine, treating the concept of urban agriculture. The idea is simple: major cities such as Amsterdam, Ghent and Berlin are filled with exhaust gasses that endanger the health of the citizens in the long term. Therefore, architects build gardens located on the roofs of the cities’ buildings. Not only is it a magnificent view, but the gardens also help purifying the polluted air.

    Unfortunately, a myriad of possible approaches to urban agriculture and the dissension amongst the batch of actors prevent the sustainable development of Ghent. The master dissertation takes the first step to unblock the situation, providing a conceptual framework that contains three main axes: objectives, context and techniques. This framework helps drawing the attention to and organizing the problem.

    If you are interested in urban agriculture, you can download the whole thesis – that was even eligible for receiving the Charles Vermeersch Thesis Awards 2013 – by clicking on the following link: http://www.scriptiebank.be/scriptie/urban-agriculture-context-ghent.

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