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New Speed Limits on Maine's Interstate
MaineDOT Commissioner David Bernhardt and Col. Williams of the State Police announced new speed limits on the interstate. Below you will find two maps outlining where the changes occurred. The changes take effect immediately.
Speed Limit Change Locations
View maps detailing where the speed limit changes are taking effect.
MaineDOT staff used radar data from the 64 variable speed limit signs on the interstate to determine average and 85th percentile speeds. The radar devices in the signs were able, in most cases, to give the 85th percentile speeds 24 hours per day, 365 days a year. The data showed that most vehicular traffic was traveling in excess of 70 mph for a majority of the day. (Average speeds were 3 to 4 mph lower at night. Days with snow events were readily detectable as operating speeds plunged.)
MaineDOT staff performed test runs on the interstate with members of the State Police. The collaborative effort resulted in developing the proposed speeds based on the facts above.
This page last updated on 6/23/14
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