The traffic axes appear to be the lifelines of the kampong. The river instead is mostly used as a trash disposal and is treated more as the backside of the Kampung. The goal is to merge the qualities of these two components and to give the river a new importance. We used these main traffic axes to frame the Kampung and define a new riverbed area of the Ciliwung. We implemented new high density units along the main traffic axes which should act as an entry gate for the Kampong behind. Due to a new secondary road system the structure should spread out towards the river and attract the people and their life activities to follow this movement. At the same time the river should deal in a similar way and the river landscape should grow into the Kampung and form a connection with the urban fabric. Our main intervention on the Ciliwung is to widen it and activate the river as a public transport system for the inhabitants. In the lower regions we step back with our units and want to create a continuous public open space along the river with green areas, steps and piazzas with sitting facilities. In the higher parts of the kampung we want to push the urbanity close to the river, which only opens up in small green pockets and we created a small pathway along the river which is bordered by a retaining wall.
Our goal was to frame the Ciliwung river by implementing new high density units along the main traffic axes around the river and define a new riverbed area. This belt along the streets acts like an entry gate for the whole Kampung behind. Due to a new secondary road system the structure should spread out towards the river and attract the people and their life activities to follow this movement. At the same time the river should deal in a similar way and the river landscape should grow into the Kampung and form a connection with the urban fabric. Implementing this two new elements creating new qualities framing the Ciliwung we want to provide a base for the development and improvement for the Kampung inside.
To maximize high quality space in the kampung, a reorganization of functions and locations is necessary. We have a focus on open spaces and different strategies are used to increase the amount and quality of these spaces. We made examples of how open spaces in the kampung could be transformed. An open space could either be strengthened as a green space, or used as a site for a high density building. Weak housing structures would be given new use, for example as a base for a garden, that would work as flood protection for houses. We propose high buildings along the depot and towards the river, to create open alleys between water and street.
River strategy: The main approach was to redefine a new edge removing the vulnerable settlements along the river, widening the riverbank and implementing new greenery. The river should also be activated as a transport line where goods and people can be transferred within the whole kampung. Land strategy: The site was divided into three layers – a new hard edge on the southern Part of Bukit Buri, a transportation backbone in the centre and e quiet green belt along the northern river side. Existent qualities in Bukit Duri were strengthened. The activities of workshops, shops, carpentries and traffic were enhanced. The old railway depot has been reactivated as a train station, the workshops densified and a new flexible building structure is planned.
The more common block is already very urban and should be densified even more by inserting our units in free spaces and by heightening the existing houses. We want to push the urbanisation as close as possible to the river and define a new river edge. The block has been divided in several sub-blocks having a water tank in each collecting the rainwater from the roofs, containers for the garbage collection and a small pipe system, collection the sewage water from the houses discharging into a clarification plant. For the block with the old railway depot the aim is to develop a natural habitat, a recreation zone for the inhabitants and to convert the railway depot into a new railway station and public cultural and community center. The river edge has been modified removing the unsafe housing close to the riverbank and replaced by a green belt.
Situation: The two blocks are very different – one is defined by the old railway depot and the bridge becoming an important traffic axe affecting the whole block. The second block has a very common structure with a high density of housing and is bordered by the old railway depot, the Ciliwung River and a main street. Organisation strategy: In the common block we found a stripe structure defined by streets. We used these streets to incorporate a canal system flushing the sewage water of the houses into a buffering zone along the river. Further the stripes were divided in several sections having a water tank in each one collecting the rainwater from the roofs. The garbage collection should also be organised along the streets.
Our aim is to deal with the fact of loosing the control of the ground floor with its normally functioning as circulation, working and public space during flooding. The units designed for this purpose provide a new circulation level. Unit:The construction is a very elementary pillar-slab construction in concrete. The units variate slightly in three types, having on the first floor either a totally open public floor, a semi open public space or an inner private closed core and a surrounding public circulation space. The ground floor can be used for public or temporary uses, which can easily be given up during flooding. The upper floors are convenient for living and sleeping rooms. The different types of the unit are supposed to work like a puzzle, providing a continuous public space for circulation which can be activated during flood period. Pontoon: To complete the circulation system over a street we designed bottle pontoons, which can be easily used to cross the flooded street and to connect the several open spaces on the first floor of the units.