Frontage improvements shall be provided on all existing Town streets adjacent to any subdivision to the standards required by this chapter and the adopted Town General Plan. The subdivider will be required to provide frontage improvements and pavement widening on the side or sides of the roadway adjacent to the subdivision, including the adjustments of all existing public utilities owned and operated by public jurisdictions. In addition, the subdivider shall improve all public and private streets and easements which serve the subdivision and local neighborhood traffic.