The common drive shall intersect a public way at an angle of not less than 80 degrees.
Alignment and sight distances should be sufficient to support a design speed of 15 mph.
The common driveway shall lie entirely within the lots being served.
The common driveway, at its intersection with the street, must provide a leveling-off area with a slope no greater than 1% for the first 20 feet and a slope no greater than 5% for the next 30 feet.
There shall be a minimum of 50 feet between the entrances of any two common driveways onto any road.
The common driveway shall be constructed of a minimum 15” gravel base, with an oil and stone top layer of 1½” consisting of three successive layers of ¾” crushed traprock stone, ½” crushed traprock stone and ¼” crushed traprock stone, with a crown sufficient for drainage; or of a top layer of bituminous concrete with a 3” minimum thickness; or of any other paving materials (stone pavers, porous pavers, etc.) with the approval of the DPW Director. Drainage shall be by sheet runoff to drainage swales adequate to dispose of surface runoff. Culverts will be installed if deemed necessary by the Planning Board.
A common driveway shall have adequate sight distance at its intersection with a public or private road, and shall not create traffic safety hazards to its users or the public.
The common driveway shall access the property over the frontage of at least one of the lots being served by the driveway.
The common driveway shall provide the only vehicular egress/access to the lots being serviced.
Permanent signs, sufficiently readable from the road to serve the purpose of emergency identification, indicating the street number address assigned to each lot served by the common driveway shall be installed within ten (10) feet of the intersection of the common driveway with the street, as well as within ten (10) feet of the intersection of an individual lot driveway with the common driveway. This requirement is in addition to those for individual homes.
Common driveway design shall to the greatest extent possible minimize adverse impact to wetlands, farmland, or other natural resources; allow reasonable, safe, and less environmentally damaging access to lots characterized by slopes or ledges; and result in the preservation of rural character through reduction of number of access ways; and retention of existing vegetation and topography.
Frontage along the length of a common driveway shall in no way be used to satisfy frontage requirements as specified in the Zoning Bylaw.