(a) Whenever the Department of Transportation or local authorities with respect to highways under their respective jurisdictions determines upon the basis of an engineering and traffic investigation that the designation of a specific lane or lanes for the travel of vehicles required to travel at reduced speeds would facilitate the safe and orderly movement of traffic, the department or local authority may designate a specific lane or lanes for the travel of vehicles which are subject to the provisions of Section 22406 and shall erect signs at reasonable intervals giving notice thereof.

(b) Any trailer bus, except as provided in Section 21655.5, and any vehicle subject to the provisions of Section 22406 shall be driven in the lane or lanes designated pursuant to subdivision (a) whenever signs have been erected giving notice of that designation. Except as otherwise provided in this subdivision, when a specific lane or lanes have not been so designated, any of those vehicles shall be driven in the right-hand lane for traffic or as close as practicable to the right edge or curb. If, however, a specific lane or lanes have not been designated on a divided highway having four or more clearly marked lanes for traffic in one direction, any of those vehicles may also be driven in the lane to the immediate left of that right-hand lane, unless otherwise prohibited under this code. When overtaking and passing another vehicle proceeding in the same direction, the driver shall use either the designated lane, the lane to the immediate left of the right-hand lane, or the right-hand lane for traffic as permitted under this code.

Terms Used In California Vehicle Code 21655

  • bus: is a ny vehicle, including a trailer bus, designed, used, or maintained for carrying more than 15 persons including the driver. See California Vehicle Code 233
  • Department: means the Department of Motor Vehicles except, when used in Chapter 2 (commencing with Section 2100) of Division 2 and in Divisions 11 (commencing with Section 21000), 12 (commencing with Section 24000), 13 (commencing with Section 29000), 14 (commencing with Section 31600), 14. See California Vehicle Code 290
  • driver: is a person who drives or is in actual physical control of a vehicle. See California Vehicle Code 305
  • Highway: is a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. See California Vehicle Code 360
  • Local authorities: means the legislative body of every county or municipality having authority to adopt local police regulations. See California Vehicle Code 385
  • traffic: includes pedestrians, ridden animals, vehicles, street cars, and other conveyances, either singly or together, while using any highway for purposes of travel. See California Vehicle Code 620
  • trailer: includes a semitrailer when used in conjunction with an auxiliary dolly, if the auxiliary dolly is of a type constructed to replace the function of the drawbar and the front axle or axles of a trailer. See California Vehicle Code 630
  • vehicle: is a device by which any person or property may be propelled, moved, or drawn upon a highway, excepting a device moved exclusively by human power or used exclusively upon stationary rails or tracks. See California Vehicle Code 670

This subdivision does not apply to a driver who is preparing for a left- or right-hand turn or who is entering into or exiting from a highway or to a driver who must necessarily drive in a lane other than the right-hand lane to continue on his or her intended route.

(Amended by Stats. 1988, Ch. 843, Sec. 4.)