Electric railway companies shall affix to their cars or coaches enclosed vestibules of wood, iron or glass and maintain side doors on such vestibules for the protection of motormen and passengers during the months of December, January, February and March. The failure of any such company to comply with the provisions of this section subjects it to a penalty of ten dollars per day, to be recovered by any citizen in the city or town in which such company does business, one fourth thereof to go to the person bringing suit to enforce the law and the remaining three fourths for the benefit of the State.