Sight distance for access driveways and new roads shall conform to the following specifications. Access driveways and new roads onto existing public roads shall have a clear sight distance after improvements to the right-of-way as required by the Planning Board or controlling highway agency of 600 feet for state highways, 500 feet for county and collector streets, 300 feet for minor streets, including all Town streets and Town highways, or shall meet the minimum required AASHTO standards for the posted speed limits on said roads, whichever is less. The minimum standards set forth above shall be measured from a point clearly shown on the plan 10 feet in from the edge of the traveled way of the road or street to which the driveway connects to oncoming traffic and between cars in the same lane where a car should be stopped to turn into the driveway at acceptable levels for drivers of said vehicles. All measurements shall be based on accepted, current AASHTO standards.