Minimum street frontage. It is a policy of the Town of Tuxedo to minimize the number of new curb cuts established on streets that carry high volumes of vehicular trips, thereby improving traffic safety. Except for properties located in the S-HB, S-HR and T-TC Zoning Districts, any lot with street frontage on a state or county road shall have a minimum street frontage on said road that is no less than two times the minimum lot frontage otherwise required for the use and zoning district within which said lot is located, or a minimum of 200 feet, whichever is greater. For properties containing nonresidential uses, these provisions may be waived by the Planning Board where it is determined that shared driveway access will be provided, and the combined street frontage of all lots sharing said access is 200 feet or greater. The Planning Board shall condition said waiver on the property owners entering into a legal agreement reserving the driveway permanently for shared use with adequate maintenance provisions in the opinion of the Planning Board attorney. The Planning Board, in its discretion, may also waive this requirement where a lot maintains street frontage on a road not regulated by this requirement and can obtain vehicular access from the street not regulated herein, provided the property owner restricts future access to said other location by means of a deed restriction, map note, or other legal device.