(a) No person shall turn a vehicle or move right or left upon a roadway unless and until such movement can be made with reasonable safety nor without giving an appropriate signal in the manner provided by law.
(b) A signal of intention to turn or move right or left when required shall be given continuously during not less than the last one hundred (100) feet traveled by the vehicle before turning.
(c) No person shall stop or suddenly decrease the speed of a vehicle without first giving an appropriate signal in the manner provided by law to the driver of any vehicle immediately to the rear when there is opportunity to give such signal.
(d) The signals required on vehicles as provided by law shall not be flashed on one side only on a disabled vehicle, flashed as a courtesy or do pass signal to operators of other vehicles approaching from the rear, nor be flashed on one side only of a parked vehicle except as may be necessary for compliance with this section.
State law reference--Similar provisions, R.R.S. 1943, 60-6,159 to 60-6,163.