99-420-1 Me. Code R. § 1
Except where an exception is provided for by this rule, the maximum speed of motor vehicles on the Turnpike shall be limited to seventy (70) miles per hour, and the minimum speed shall not be less than forty-five (45) miles per hour. Notwithstanding the foregoing, the maximum speed of motor vehicles on the following portions of the Turnpike shall be as specified:
On any portion of the Turnpike lying south of mile marker.7, the maximum speed shall be fifty-five (55) miles per hour. On any portion of the Turnpike lying north of mile marker.7 and south of I-95 mile marker 2.1 the maximum speed shall be sixty-five (65) miles per hour. On any portion of the Turnpike lying north of mile marker 44.1 and south of mile marker 52.3 the maximum speed shall be sixty (60) miles per hour. On the Falmouth Spur the maximum speed shall be sixty (60) miles per hour. The Falmouth spur, for purposes of this section, is defined as the segment of highway owned by the Maine Turnpike Authority between the median opening at mile marker F3.8 to the Railroad Bridge overpass at mile marker F0.5 near the ramps connecting that segment of the highway to the Turnpike mainline.The Authority may designate different maximum speeds for construction, transitional or other reduced speed zones where operational conditions warrant, and during periods of adverse atmospheric or weather conditions. Maximum speeds within construction, transitional or reduced speed zones or during any period of adverse atmospheric or weather conditions shall be in accordance with signs displayed for such zones. All regulatory and zoning signs displayed on the Turnpike shall be obeyed.
Speed zones through toll plaza lanes where toll booths are present are reduced speed zones and shall be defined as the area 75 feet in front of a toll booth and shall continue to a point 75 feet beyond the rear of a toll booth. The maximum speed through these zones shall be ten (10) miles per hour.
Regulatory signs for reduced toll plaza speed zones shall be placed in advance of, at the beginning, and at the end of the defined speed zone. All regulatory signs displayed at the toll plaza shall be obeyed.
The Authority may designate specific lanes where tolls or information necessary for the collection of tolls are collected but which do not allow for physical payment of a toll in cash from that lane as electronic toll collection only lanes. The maximum speed in electronic toll collection only lanes shall be ten (10) miles per hour unless otherwise signed by the Authority, in which case the maximum speed shall be as signed.
Motor vehicles shall not be driven in excess of the mechanical limits of vehicles or tires. If traffic, weather, pavement or other conditions render the maximum allowable speed hazardous, the speed of motor vehicles shall be reduced consistent with such conditions.
99-420 C.M.R. ch. 1, § 1