The median strip is the area between the dual or triple traffic lanes for the purpose of separating traffic proceeding in opposite directions.
Crossing, driving, parking or stopping on the median strip is prohibited. Openings through the median strip are provided for official use of maintenance, operational, police vehicles, or fire and rescue vehicles when responding to an incident, and shall not be used by the public.
99- 420 C.M.R. ch. 1, § 4