Tuesday 24 November 2015

O2 Planning- Optimizing Resource utilization in Sustainable housing

Resources are the major source of energy consumed in any construction project. These resources primarily include materials, machinery & manpower. It is very hard to judiciously segregate these three and then seek optimization, as there are way too many interfaces between them. That said, effective planning is pre-requisite for effective resource utilization, which itself is imperative for any Sustainable housing, because optimum resource utilization means optimum energy utilization.
Site logistics planning, i.e., organizing site and resources in such a way that right resource reaches right location in time is a complex process. It is basically done to ensure that construction process flow remains as smooth as possible during execution. It includes planning the numbers and locations for material yards (steel & shuttering yards); Material hoists; Passenger hoists; Tower Cranes; Concrete pumps, batching plants etc. It also demarcates access, approach and movement of resources in around site.
There are two major issues which can be associated with site logistics planning.
  • First is, Improper logistics process flow. About two thirds of the working hours on construction sites are accounted for material search, distances, transportation and other work interruptions, directly attributable to logistics planning. This wasted time does have a cost associated with and subsequently some embodied energy too.
  • Second issue is, over allocation of resources for a particular construction site. It happens primarily to make the logistics planning more effective. But while striving for better process flow, we sacrifice upon the energy efficiency of the construction project, as more resources leads to more energy consumption.
Site logistics planning is essentially outcome of site block planning or site planning. This means the planning of building blocks in the housing, that is, Number of blocks, Location of blocks, etc. defines the site logistics flow and hence their planning.
Site planning is directly affecting the resource planning for housing, hence in order to solve the above stated issues, alternatively in order to make them more sustainable, intervention is needed in planning process.

One-Origin Planning (O2) - The two basic principles of this intervention/philosophy are:
  1. One- Planning should be aimed at changing the plural nature of housing into singular (One). This means that the housing should comprise of one continuous building block instead of a number of separate building blocks. The primary purpose of this is to reduce the number of resources, such as cranes, hoists and concrete pumps, required to make the building accessible for manpower and materials. Less the number of separate building blocks lesser the number of dedicated resources. 
    Furthermore a continuous building block would also increase the workability of various construction activities such as concreting, shuttering, reinforcement lying etc. as these could be planned with more options in terms of working area, accessibility etc. 
    This can be achieved either by planning the overall housing as one single large building, or incase that is not feasible then as a combination of smaller building blocks joined with each other through structural connections vis-à-vis expansion joints. If the number of blocks are too much to be simply connected as then the design could be improvised to achieve the continuation, through branching, extensions etc.
  2. Origin- This means that the planning should evolve from origin, alternately we could say that the building block (prime element of housing) should be the focal point of the site instead of other elements like Green areas or community center etc. These secondary elements of the housing could be placed surrounding the building block. This is also essentially required to make the first principle more viable.   
    When we design building as/at focal center of site, we are providing scope of keeping major construction area concentrated. This means that there will be less distances between various site logistics areas like steel yards, shuttering yards material stores etc. This will drastically reduce both the time and resources required to access and utilize them.
This philosophy is a simple yet effective intervention to optimize the utilization of resources in a sustainable housing. 
In a way this could act as a constraint for designers but a necessary constraint because it would positively improve the sustainable credentials. No doubt it has to be improvised with respect to requirements of site, surroundings, project, and stakeholders.

Following are some schematics to graphically explain the above philosophy.


Saturday 24 October 2015

Crowd-funding as "Cost of Sustainability"


I recently read an article on archdaily.com on the “Role of Crowd-funding in Architecture”. It was seeking reader responses regarding this query and this blog entry is an indirect response to that.

Crowd-funding is a novel yet contentious idea for Architecture projects. Government architecture projects are already funded from public money (taxes, duties etc.) so involving crowd-funding in those is a dishonest approach at the onset. It’s like asking for double taxes on a single commodity. Private projects on the other hand are most of the times profit oriented and the profits are meant for a private entity, so why public should fund for such projects.
So, while looking for crowd-funding options in architecture we are only left with an interface zone which includes, privately funded projects completely dedicated to public. Here too the scope of crowd-funding could be for part portion only.
But in my view, there is a relatively better candidate available in Architecture projects for use of crowd-funding, and that is “Cost of Sustainability”.
There is no denying that sustainable development is need of the time, and not only in architecture. But in Indian architecture fraternity there is a wide spread belief that sustainability is only a cosmetic term, which is largely an incorrect interpretation. Main reason behind this belief is peer reviews arising from the excess cost involved in executing sustainable projects. In present Indian scenario, achieving sustainability adds on to basic project cost, so project stakeholders are not much interested in taking up this burden.  And since clients are not ready to spend, so the architects too are not keen on investing their skills for it. Sustainable architecture do form part of buildings; majority of them incorporating it due to associated relaxations in FSI norms; while some do it as a building USP. But overall, this image of sustainability being an ornamental fixture in architecture is sticking.
So, in my view if we could standardize crowd-funding as Cost of Sustainability then this approach of various stakeholders towards sustainability in architecture could be changed. As mentioned above, the scope of doing this is very limited. Why would public pay for it, even if it is sustainability.
Well, this is where we should innovate. Architects have to redefine sustainability in architecture in way so that, a) The sustainable nature of the architectural product essentially gives back to society (or public) a return of investment, rather than just giving back to primary stakeholders, b) we convert sustainability from just being a building’s USP to a society’s USP.

This might be a far better approach than to cast it aside as a cosmetic term in architecture. Thence we have to consistently look for newer ideas and play our part in providing sustainability in Architecture its deserved place. 

Saturday 17 October 2015

Ad-Farms- A new approach

Most of us would've observed heaps of big advertising hoardings while travelling from one place to other in our country. Majority of these advertisements happen to stick around roads and highways. 
They divert the attention of drivers, and the attention diversion quotient of these advertisements varies from minimal to drastic (depending upon the sobriety of content). This happens to be their first disadvantage in my view, as is obvious from presence of large number of road safety signages mentioning "savdhani hati durghatna ghati". Distraction to drivers is one of top 5 reasons of accidents on Indian roads. 
Second disadvantage is as significant as first one. Being an Architect I don't like them littered here and there as they are obstructing the view to built environment. The view to buildings, as attractive as it might be, needs to be unobstructed. Only then our conscious might ask us to improve upon the face of built environment. But that’s a separate topic, let’s stick to these ads.
Both of these disadvantages are good enough to seek alternatives, but what are the alternatives? 
Well, we could take a cue from standard human behavior. When humans seek a discipline in any practice, the first thing they do is to organize. Our basic approach regarding locating these ads needs to change from unorganized to organized one.Rather than placing these ads at random hazardous places on roadside buildings, we should seek spaces uniquely organized for Ads.  
This is where this idea of “Ad-Farms” comes into picture. Despite our concerns regarding rapid urbanization, it’s not stopping or even slowing. Farmlands are fast converting into parkings, parks & compounds of housing societies, converting natural into manmade. It’s very hard to even think of retaining any farm spaces in urban areas.
Through Ad-Farms, we could seek to change that. These advertisement farms could very well be our traditional mango or orange orchards or fields, occupied with corporate advertisement hoardings. They could very well act as public spaces, where people could understand these ads without any hazards. Where natural and manmade could complement each other.
These Ad-Farms could be source of revenue owners, both through advertisements, and if properly designed then through public visiting. On the other hand these Ad-farms would be a tiny share of social responsibility for corporates. The Ad guys might even think of innovative ways of displaying advertisements if they are sure that people would stand look and appreciate it, like on TV. These Ad-farms definitely seem a better option than the existing one.
Off course drastically changing the way things are normally done is a very tough job, as human nature resists change. Success of this concept too would depend on a lot of factors, like favorable government policies, corporate awareness, desire of organic approach in people. But it’s definitely worth a try.