Via
EcoWordly:
Speed Limit 80kmh - Pollution Ahead
In contrast to the thread:
Utah Considers Joining 80 MPH Speed Limit Club ...
Quote:
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The super environmentally conscious nation of Switzerland puts a healthy environment above the freedom of the highway. This week, motorists in the Italian thinking region of Switzerland may drive no faster than 80kmh to compensate for high levels of air pollution in the region.
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Apparently it's a variable limit, since pollution levels change with atmospheric conditions.
http://ecoworldly.com/2008/02/27/spe...llution-ahead/
This isn't the first I've heard about emissions based speed limits. Denmark has done similar things as well - specifically reduced the maximum speed on freeways that pass through or near residential areas.