A sound and/or visual barrier system (1) combining the good properties of wide earth ridges plus those of upright walls (3). At the same time, the hollow inside (6) of the barrier is to be used as a conduit for infrastructure as pipes or cables for electricity, communications, water, gas, fuel, etc. As foundation for the barrier, a drainage concrete ditch (28) may be used to minimize land consumption for the total along highway or rail artery services requirement.
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