South County Integrated Mobility Study

nonrestrictive medians, such as an undivided two or four lane highway or multi-lane highways with two-way left turn lanes.

CLASS 7

Subdivision roads and all other local roadways functioning as subdivision roads.

TYPE I = 10 ft Type II = 50 ft (<5000 vpd*) 175 ft (≥ 5000 vpd*) Type III =50 ft (<5000 vpd*) 250 ft (≥ 5000 vpd*)

All Speeds 330 ft

All Speeds 330 ft

March 1, 1991 * refers to volume on adjacent roadway

NOTES AND SPECIAL REQUIREMENTS

1. Access road systems in Access Class 2 assumes the provision of an access road system or adequate internal property circulation through existing or new public and private roads in transportation and comprehensive plans and through local land development regulations. 2. Minimum connection and directional median spacing openings specified here may not be adequate if extensive right or left-turn storage is required. Greater distances may be required to provide sufficient site- specific storage. 3. Connections and median openings on the public roadway system located up to ¼ mile from an interchange area or up to the first intersection with an arterial roadway, whichever distance is less, shall be regulated to protect the safety and operational efficiency of the limited access facility and the interchange area. The ¼ mile distance shall be measured from the end of the taper of the ramp furthest from the interchange. a. The distance to the first connection shall be at least 660 feet where the posted speed limit is greater than 45 mph or 440 feet where the posted speed limit is 45 mph or less. The distance will be measured from the end of the taper for the particular quadrant of the interchange. If the above connection spacing cannot be provided, a single connection per property will be provided if no other reasonable access to the property exists and the issuing authority determines that the connection does not create a safety, operational or weaving hazard. b. The minimum distance to the first median opening shall be at least 1,320 feet as measured from the end of the taper of the egress ramp. c. Connections and median openings meeting the above spacing standards still may not be permitted in the location requested in the permit application, when the issuing authority determines, based on traffic engineering principles, that the safety or operation of the interchange or the limited access highway would be adversely affected.

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