Ordinances-2003-260

iii. For major accesses and when existing streets are to be widened to accommodate proposed access the design of the access and prescribed roadways shall be in accordance with the Iowa Department of Transportation's, most recent revisions and supplements thereto, subject to the discretion of the City of Tiffin City Council. iv. When portions of existing prescribed roadways are to be widened to accommodate proposed access facilities, the following requirements shall be met: 1. The existing edge of pavement to be widened shall be saw cut full depth to obtain a clean vertical face. 2. When the widening will alter striping through traffic travel paths, the existing pavement shall be resurfaced with a minimum of 1 \( \frac{1}{2} \) inches, or as otherwise determined by the City of Tiffin, of Bituminous Concrete Surface Course over the entire width, to obliterate wheel paths and pavement markings, and as per IDOT and MUTCD standards. v. The shoulder area between accesses may also be required to be surfaced as outlined in Section 6.A.7.C. vi. The cross slope shall be 3/16" per foot for paved driveways and 1/4" per foot for unpaved driveways. vii. The asphalt material shall meet the current IDOT requirements for prescribed roadways. f. Auxiliary Lanes Auxiliary lanes may be required to provide additional capacity at the proposed access for heavy right or left turning movements and increased operational safety by removing turning vehicles from the path of through traffic. The improvements shall be designed to a Level Of Service C or better for all traffic movements. The improvements shall be designed for a projected traffic volume of twenty years beyond the expected year of construction. i. Acceleration Lanes – The use of acceleration lanes with driveway is seldom; however, they should be considered for use when roadway speeds are 40 mph or more, and/or the access right turn volumes are heavy. Acceleration lanes should be used in conjunction with