delhi nullahs by morphogenesis from india

Delhi Nullahs: A Sustainable Blueprint for the City
An Initiative by Morphogenesis
The Proposal: To use Delhi's neglected Nullah network to fundamentally transform the city. The nullah network is 350km long, contiguous and criss-crosses the national capital. Currently, the nullahs are just unhygienic drains that are seen as a problem by the citizens of Delhi - they smell, breed mosquitoes, pollute the Yamuna and so on. However, a relatively small investment can turn the nullahs into a valuable asset for the common citizen. The necessary changes are:
1) Alternative Transport Network: Create walking/cycling paths on these nullahs to provide commuters with last mile connectivity to public transport (buses and metro). This will significantly improve the effectiveness of the existing public transport. Furthermore, people will be able to walk/cycle for short distances (and it will be an enjoyable experience). Since the nullah network is 350km long - this would be a very important contribution to the lives of the common citizens.
2) Alternative Environmental Network: Use a system of organic reedbeds and aerators to clean the sewage entering the nullahs. This is a well established system and it is both environment-friendly and cheap. This will dramatically improve public health in the city as well as help replenish aquifers. This will also reduce the need to spend large sums on building sewage plants at the Yamuna.
3) Alternative Cultural Network: The new network could be used to trigger a number of new urban activities ranging from tourism to sports. For instance, some of the nullahs are 700 years old and were built to provide water to Delhi's old cities. Thus, many of the city's famous archaeological sites are situated on the nullah network. Most major cultural venues in the city can be interconnected through this network, including Commonwealth Games venues, historical monuments, museums, theatres, stadiums, etc. to create a new walking network to drive next generation tourism.