Ordinances-2003-260

e. Medians Where a divided entrance separating entering and exiting traffic is utilized, the barrier median shall be a minimum of 4 feet wide and extend into the property as far as necessary to promote smooth traffic patterns. The median shall begin at the edge of the normal shoulder in an uncurbed section or 5 feet from the face of the curb in a curbed section. (Only where needed or proposed.) f. Throat Length At major access facilities, a queuing analysis using expected arrival and departure rate should be conducted to determine the appropriate throat length. A minimum length of 150' should be used for high volume generators such as shopping centers, office or industrial parks. 7. General Design Elements a. Access Profile i. All access constructed on rural section prescribed roadways locations shall have a grade that slopes away from the highway surfaces at a rate equal to the slope of the shoulder but not less than 3/16 inch nor greater than 1 inch per foot. This slope shall continue for a distance equal to the prevailing shoulder width. The maximum difference between the downward cross slope of the shoulder and the upward slope of the access towards the right-of-way line should not exceed 8.0 percent. It is desirable that the access slope upward from the edge of shoulder on a straight slope be at least 10 feet long for residential access and 40 feet long for commercial and industrial access. The same physical limitation should apply to roadways with a curb and gutter cross section with the access grade beginning at the gutter line. The grades used for rural and urban access shall permit facilities that will accommodate the flow of the drainage in the vicinity of the access and should be designed so that future widening would not require reconstruction of the intersection. Such facilities shall be the responsibility of the applicant.