2011 Wyoming Statutes
TITLE 31 - MOTOR VEHICLES
CHAPTER 5 - REGULATION OF TRAFFIC ON HIGHWAYS
31-5-209. Driving on roadways laned for traffic.
(a) Whenever any roadway has been divided into two (2) or more clearly marked lanes for traffic the following rules in addition to all others consistent herewith shall apply:
(i) A vehicle shall be driven as nearly as practicable 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;
(ii) Upon a roadway which is divided into three (3) lanes and provides for two-way movement of traffic, a vehicle shall not be driven in the center lane except when overtaking and passing another vehicle traveling in the same direction when the center lane is clear of traffic within a safe distance, or in preparation for making or completing a left turn or where the center lane is at the time allocated exclusively to traffic moving in the direction the vehicle is proceeding and the allocation is designated by official traffic-control devices;
(iii) Official traffic-control devices may be erected directing specified 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 and drivers of vehicles shall obey the directions of every such device;
(iv) Official traffic-control devices may be installed prohibiting the changing of lanes on sections of roadways and drivers of vehicles shall obey the directions of every such device.
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