A. Whenever any roadway has been divided into two (2) or more clearly marked lanes for traffic, in addition to all other rules consistent with this subsection, a vehicle shall be driven as nearly as practical entirely within a single lane and shall not be moved from the lane until the driver has first ascertained that the movement can be made with safety and has signaled for a change of course, not less than the last one hundred feet (100') traveled by the vehicle, of his intention to change lanes.
B. Where streets or roadways do not have marked traffic lanes, vehicles shall nevertheless keep in line or follow a straight course as nearly as practical and shall not weave in and out or turn from side to side unnecessarily. Vehicles shall move to the right or left only as necessary in slowing or stopping adjacent to the curb, in passing slow moving vehicles or making a proper approach for a turn, and this only after the driver has first ascertained that such movement can be made safely and has signaled for a change of course.
C. Upon a roadway which has been divided into three (3) lanes, a vehicle shall not be driven in the center lane except when overtaking and passing another vehicle where the roadway is clearly visible and such center lane is clear of traffic within a safe distance, or in preparation for a left turn, or where such center lane is at the time allocated exclusively to traffic moving in the direction the vehicle is proceeding and is signposted to give notice of such allocation.
D. A two-way left turn lane is a lane near the center of the highway set aside for use by vehicles making left turns in both directions from or into the roadway. Two-way left turn lanes shall be designated by distinctive roadway markings consisting of parallel double yellow lines, interior line dashed and exterior line solid, on each side of the lane. A vehicle shall not be driven in a designated two-way left turn lane except when preparing for or making a left turn from or into a roadway. Vehicles turning left from the roadway shall not be driven in the two-way left turn lane for more than two hundred feet (200') while preparing for and making the turn. A vehicle turning left onto the roadway may utilize the two-way left turn lane as a staging area by stopping and waiting for traffic proceeding in the same direction to clear before merging into the adjacent lanes of travel. A left turn shall not be made from any other lane where a two-way left turn lane has been designated. Provided, however, this section shall not prohibit driving across a two-way left turn lane when moving from a service drive onto such marked roadway.
E. Official signs may be erected directing slow moving traffic to use a designated lane or designating those lanes to be used by traffic moving in a particular direction regardless of the center of the roadway. Drivers of vehicles shall obey the directions of every such sign.
F. Whenever any highway has been divided into two (2) or more roadways by leaving an intervening space or by a physical barrier or clearly indicated dividing section so constructed as to impede vehicular traffic, every vehicle shall be driven only upon the right hand roadway unless directed or permitted to use another roadway by official traffic control devices or police officers. No vehicle shall be driven over, across or within any such dividing space, barrier, median or section, except through an opening in such physical barrier or dividing section or space or at a crossover or intersection as established by the city. (Prior code ch. 20; amd. 2015 Code)