Franklin’s overnight parking ban during winter storms is in effect through April 15. The ban will be activated between 1 and 5 a.m. if snow, sleet or freezing rain is falling, or is imminent within 12 hours. During the ban, it is prohibited to park a motor vehicle on a public street or on any roadway open to the public. The measure is intended to allow police, fire, and emergency medical vehicles to operate without impediment during winter storms. For more information, call the Police Department at 508-528-1212. Full story for BostonGlobe.com subscribers.