Hi,

I belong to an association which fights against the alignment of a 4
ways road, which we believe is detrimental to the environment and
population (http://perso.wanadoo.fr/adse).

There are now two aligments, which we know rather accurately. Both
run in the country side and the impact on the population will
essentialy be determined by the proximity of the houses (dispersed)
and the relief.

I am aware that a precise determination can only be given from a
simulation, taking account all parameters. However, we cannot afford
this and what we need are general guidelines to evaluate the impact.

To simplify, one alignment runs on a nearly flat ground, the other
one on one side of a valley. Is it possible to evaluate the impact on
each house, given its location (we assume there will not be any noise
wall or particular installation against noise impact)?


many thanks,