(a) Generally. All median openings, driveway approaches, driveways, and extra lanes including left turn lanes, right turn lanes, acceleration/deceleration lanes, and other extra lanes must be located, designed, and constructed in accordance with the current standards of the department of public works.
(b) When required. Left turn lanes are required to serve median openings providing access to the proposed plat. Other extra lanes must be designed and constructed as part of the subdivision infrastructure improvements when:
(1) they are required by the thoroughfare plan;
(2) they are required by the zoning district in which the property is located; or
(3) they are recommended and approved by the director and the chief planning officer for proper traffic management.
(c) Spacing of openings. Median openings must be at least 400 feet from median openings serving thoroughfare intersections with divided thoroughfares, measured between the noses of the median. Median openings serving minor streets and driveway approaches along a divided thoroughfare must be at least 300 feet apart, measured between the noses of the median, unless the traffic engineer determines that the potential vehicular traffic in the area does not require 300-foot spacing. The minimum median opening width is 60 feet. Wider openings may be required in order to facilitate truck turning movements. Median openings and left turn pockets must be constructed at the intersection of all streets and drive approaches that generate 250 trips in a 12-hour period.
(d) Relocation of openings. Existing median openings may be relocated if:
(1) the existing opening does not provide service to a public or private street;
(2) the proposed median opening meets the spacing requirements stated in Subsection (c) of this section;
(3) the existing opening is no longer in use or the owners of the properties being served by the existing opening sign a document requesting or approving the change, and the document is approved by the city attorney’s office; and
(4) the proposed relocation is shown on engineering plans approved by the director.
(e) Driveways and driveway approaches. Driveways must be designed and constructed to provide proper site drainage and to maintain the conveyance of existing drainage in public and private streets. A separate street cut permit is required for each driveway approach accessing a thoroughfare. Driveways may be constructed concurrently with street construction, or with building construction, but must be completed before the issuance of a certificate of occupancy, or final inspection of the buildings or improvements on the property. (Ord. Nos. 20092; 21186; 22026; 23384; 25047; 28073; 28424; 29478; 30239; 30654)