For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   AUTHORIZED EMERGENCY VEHICLES. Vehicles of the Fire Department, police vehicles and such ambulances designated or authorized by the Chief of Police.
   BLOCK.  That portion of any street located between two intersections next adjacent to each other.
   BUSINESS DISTRICT. The territory contiguous to a street when 75% or more of frontage thereon for a distance of 300 feet or more is occupied by buildings in use for business.
   CROSSWALK. That portion of a roadway ordinarily included within the prolongation or connection of the lateral lines of sidewalks, at intersections, and any portion of a roadway distinctly indicated for pedestrian crossing by lines or other markings on the surface.
   DRIVER.  Every person who drives or is in actual physical control of a vehicle.
   OFFICIAL TIME STANDARD.  Whenever certain hours are named herein they shall mean standard time or daylight savings time as may be in current use in this city.
   OFFICIAL TRAFFIC CONTROL DEVICES. All signs, signals, markings and devices not inconsistent with this chapter, placed or erected by authority of the City Council or official having jurisdiction for the purpose of regulating, warning or guiding traffic.
   OFFICIAL TRAFFIC SIGNALS.  Any device, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and to proceed.
   PARK.  The standing of a vehicle, whether occupied or not, otherwise than temporarily for the purpose of and while actually engaged in loading or unloading.
   PEDESTRIAN.  Any person afoot.
   POLICE OFFICER.  Every officer of the City Police Department or any officer authorized to direct or regulate traffic or to make arrests for violations of traffic regulations.
   PUBLIC CONVEYANCE.  Any vehicle other than a taxicab or railroad train for transporting for fare.
   RAILROAD.  A carrier of persons or property upon cars, other than streetcars, operated upon stationary rails.
   RAILROAD TRAIN.  A steam engine, electric or other motor, with or without cars coupled thereto, operated upon rails, except streetcars.
   RESIDENCE DISTRICT. The territory contiguous to a street not comprising a business district, where 75% or more of the frontage on the street for a distance of 300 feet or more is mainly occupied by dwellings or by dwellings and buildings in use for business.
   RIGHT-OF-WAY.  The privilege of the immediate use of the roadway.
   SIDEWALK.  That portion of a street between the curblines, or the lateral lines of a roadway, and the adjacent property lines intended for the use of pedestrians.
   STANDING.  Any stopping of a vehicle, whether occupied or not.
   STOP OR STOPPING, WHEN PROHIBITED. Any stopping of a vehicle, except when necessary to avoid conflict with other traffic, or in compliance with the direction of a police officer or traffic control sign or signal.
   STOP, WHEN REQUIRED.  Complete cessation of movement.
   TRAFFIC. Pedestrians, ridden or herded animals, vehicles, streetcars and other conveyances, either singly or together, while using any street for purposes of travel.
(`90 Code, § 11-1)