J J Flyover noise barriers an apology: expert
The so-called noise barriers installed on the J J Flyover are actually an apology for a noise barrier, remarked an expert today.
While speaking to mediapersons here, Rajaram Subramaniam, chief operating officer of Metalmeccanica Fracasso India Pvt Ltd, said that the real noise barriers are the ones that have been installed at the Bandra-Kurla Complex (BKC), along side IIT campus at Powai and at the new flyover in Dahisar East.
'I have never seen such noise barriers anywhere in the world.
In fact the Central Road Research Institute (CRRI), which conducted the study on the J J Flyover, has asked the authorities to install proper noise barriers on J J Flyover, Mr Subramaniam said.
Referring to the noise barriers that were first installed at BKC along the residential premises at Kala Nagar, he said that they were the first ones that were installed anywhere in the city, which are known as reflective barriers.
They were installed by the authorities taking into account residences of high profile leaders like Shiv Sena chief Bal Thackeray and others.
The noise barriers here have a reflective glass sheet in between which reflects the noise towards the open spaces in the opposite direction. The glass sheet not only allows the security agencies to keep a watchful eye on the opposite side, but also allows people to see the other side, he said.
Commenting upon the construction of the noise barriers, he stated that the designing of the noise barriers is important.
There are two types of noise barriers -- reflective and noise absorbent ones.
He further said 'in the case of J J Flyover, you cannot have reflective noise barriers on flyovers or else it will be torture for people travelling by BEST buses or cars as the vehicular noise will amplify doubly. Besides that the design has to be aesthetic, taking into consideration the visibility and operational convenience.'Moreover, colour-wise it also has to be pleasing to the eye, added Mr Subramaniam.