SEC. 89.29. METHOD OF SIGNAL.

   The signals required by this division shall be given either by means of the hand and arm or by a signal lamp or mechanical signal device, but when the body or load on any vehicle or combination of vehicles projects 24 inches or more to the left of the center of the steering wheel, or under any condition when a hand and arm signal would not be visible both to the front and rear of the vehicle or vehicles, then the vehicle or vehicles shall be equipped with, and signals shall be give by, a signal lamp or device.

SEC. 89.30. HAND SIGNALS.

   All required signals given by hand and arm shall be given from the left side of a vehicle in the following manner:

   (a)   Left turn – hand and arm extended horizontally beyond the side of the vehicle.

   (b)   Right turn – hand and arm extended upward beyond the side of the vehicle.

   (c)   Stop or sudden decrease of speed signal – hand and arm extended downward beyond the side of the vehicle.

SEC. 89.31. OPENING AND CLOSING DOORS.

   No person shall open the door of a vehicle on the side available to moving traffic unless it is reasonably safe to do so and can be done without interfering with the movement of such traffic, nor shall any person leave the door open on the side of the vehicle available to moving traffic for a period of time longer than necessary to load or unload passengers.

SEC. 89.32. RIGHT OF WAY AT CROSSWALKS.

   The driver of a vehicle shall yield the right of way to a pedestrian crossing the roadway within any marked crosswalk or within any unmarked crosswalk or any intersection.

SEC. 89.33. VEHICLE STOPPED FOR PEDESTRIANS.

   When any vehicle has stopped at a marked crosswalk or at any unmarked crosswalk at the intersection to permit a pedestrian to cross the roadway the driver of any other vehicle approaching from the rear shall not overtake and pass the stopped vehicle.