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When the Dog is Dead, Throw it in the River – Mapping and the Challenges of the Ciliwung

Urban rivers facing pressure from rapid urbanisation often take on multiple roles beyond their natural ecological function. The Ciliwung River flows through the megacity of Jakarta and is located in West Java, Indonesia. Along with many rivers in Southeast Asia it has become an environmental buffer to Jakarta’s poorly managed waste. A popular Javanese jingle from the 1990’s includes the phrase: «…when the dog is dead, throw it in the river», and serves to illustrate some of the complex cultural factors behind the long-compromised role of Indonesia’s rivers.

The Future Cities Laboratory’s (FCL) Landscape Ecology team has been researching the Ciliwung River since 2011. The cumulative research efforts within this challenging context often required the use of unconventional methods to obtain what is generally considered base knowledge. A variety of simulations and design scenarios have been produced as a result of the work.

In October 2013 four members of the FCL’s Landscape Ecology team travelled the Ciliwung River by boat. The objective of the journey was to ground-truth bathymetric information along the river against official measurements which were provided by local ministries. This field checking was essential to constructing a digital model of the river, and required documenting its physical attributes including the depth and width of key cross-sections using spatially referenced measurements.

A series of collaborations with community groups were essential to the success of the expedition, as they provided necessary local knowledge and were more resilient to unexpected events that befell the team. For example, a garbage blockage meant that the boat itself needed to be lifted out of the river and carried some 50-meters overland before the expedition could continue. Meanwhile, an initial attempt to measure the depths of the river was thwarted by the strength of the current, which destroyed some equipment and meant that the measurement tools also had to adapt.

This anecdotal attempt to map the Ciliwung River provided a foundational understanding and context to the physical attributes of the site. The information sourced during the mapping exercise has since been valuable in the material investigation of specific site elements. Thus these new methods of mapping, a result of the collaboration between locals and researchers, have been  essential in furthering the team’s work on the Ciliwung River.

Results

The work was presented in a conference and exhibition in Jakarta, in November 2014, and was recently exhibited at Singapore’s Urban Redevelopment Authority in ‘Future Cities: Research in Action’, from January to March 2015. It is also scheduled to be included in the Shenzhen Biennale at the end of the year. The research of the Landscape Ecology team will be compiled in a series of journal articles and published as a Special Issue in the journal of Sustainable Cities and Society titled ‘Rehabilitating urban rivers: merging science with design’. 

Expedition Team

Ervine Lin, Yazid Ninsalam, Michaela F. Prescott, Federica Remondi, Kashif Shaad 

Principal Investigators, Research Module Landscape Ecology 

Prof. Christophe Girot (PI), Prof. Dr. Paolo Burlando (Co PI), Prof. Dr. Adrienne Grêt-Regamey (Co PI), Associate Prof. Dr. Jörg Rekittke (NUS) and Prof. Dr. Liong Shie Yui (NUS) 

Researchers

Dr. Senthil Gurusamy, Dr. Rita Padawangi, Diogo Costa, Ervine Lin, Yazid Ninsalam, Michaela F. Prescott, Federica Remondi, Kashif Shaad, Derek Vollmer 

Community Group

Relawan Peduli Ciliwung   

NL25: When the Dog is Dead, Throw it in the River – Mapping and the Challenges of the Ciliwung
Map illustrating the 12-kilometers travelled along the Ciliwung River from Condet to Kampung Melayu (left side). A researcher and a member of a community group working together to take a depth measurement (right side). Source: Federica Remondi
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Cet article a été publié dans le newsletter suivant:

25 | März 2015: Mapping

  • Mapping Everything
  • When the Dog is Dead, Throw it in the River – Mapping and the Challenges of the Ciliwung
  • Geographies of Opportunity
  • Verkehrsinfrastruktur, Macht, Staat
  • «Explorative Data-Mapping – Experimental Teaching Tools» innerhalb des MAS in Landscape Architecture
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  • Improving Pedestrian Mobility Through Bottom-Up Strategies, ETH-EiABC Workshop 2014 Addis Ababa Ethiopia
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  • Integrated Transport and Land Use Modeling for Sustainable Cities
  • How international borders affect local public transport: Analyses and evaluations of cross-border agglomerations in Switzerland. France and Germany

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Prof. Dr. Bryan T. Adey
Prof. Dr. Kay W. Axhausen
Prof. Dr. Tom Avermaete
Prof. Maria Conen
Prof. Dr. Francesco Corman
Dr. Jennifer Duyne Barenstein
Prof. Teresa Galí-Izard
Prof. Dr. Adrienne Grêt-Regamey
Prof. Dr. Guillaume Habert
Prof. Dr. David Kaufmann
Prof. Hubert Klumpner
Dr. Anastasios Kouvelas
Prof. Freek Persyn
Prof. Dr. Christian Schmid
Prof. Milica Topalovic
EiR PD Dr. Joris Van Wezemael
Prof. em Dr. h. c. Günther Vogt
ETH Wohnforum – ETH CASE

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