Supplementary to Question No. 10 in the
Legislative Council on 13th March 1985
Mr. Kim CHAM : Sir, as Japan has used the acoustic barriers for some years,
may I enquire when we can expect the examination be completed and implementation
started while residents suffer?
Secretary for Lands and Works :- The Highways Office will be sending a
professional person to Japan to attend a conference. In conjunction with that,
the professional will take the opportunity to study what has been done in
Japan. Meanwhile literature on the subject is being studied, and subject to
the conclusion of the examination, consideration will then be given to the
implementation of this kind of noise abatement measures in circumstances that
would benefit from this kind of treatment.
elevated
Mr. Kim CHAM :- Sir, will priority consideration be given to residential
elevated areas such as the Island Eastern Corridor or the road to the airport
where residents do suffer?
froad
Secretary for Lands and Works :- Yes, consideration will of course be given
to locations where there has been complaints about noise from the elevated
road structure. I do have some theoretical calculations of the degree of noise
abatement possible from the installation of barriers at the Island Eastern
Corridor. To obtain meaningful reduction in the level of noise, the barrier
would have to be from 3 metres high. Even then residents at the higher floor
levels such as floors ten and above do not get the meaningful reduction in
noise level. It is only in the order of one decibel.