2015 ORS 811.500¹
Unlawful stop or deceleration
  • penalty

(1) A person commits the offense of unlawful stop or deceleration if the person is operating a vehicle and the person stops or suddenly decreases the speed of the vehicle without first giving an appropriate signal to the driver immediately to the rear when there is opportunity to give the signal.

(2) Appropriate signals for the purpose of this section are as designated under ORS 811.395 (Appropriate signals for stopping, turning, changing lanes and decelerating) and 811.400 (Failure to use appropriate signal for turn, lane change, stop or exit from roundabout).

(3) The offense described in this section, unlawful stop or deceleration, is a Class B traffic violation. [1983 c.338 §657; 1995 c.383 §77]

Chapter 811

See also annota­tions under ORS chapter 483 in permanent edi­tion.

Notes of Decisions

Under Former Similar Statute

A party in viola­tion of a motor vehicle statute is neg­li­gent as a matter of law unless he introduces evidence from which the trier of fact could find that he was acting as a reasonably prudent per­son under the circumstances. Barnum v. Williams, 264 Or 71, 504 P2d 122 (1972)

Law Review Cita­tions

Under Former Similar Statute

10 WLJ 207 (1974)


1 Legislative Counsel Committee, CHAPTER 811—Rules of the Road for Drivers, https://­www.­oregonlegislature.­gov/­bills_laws/­ors/­ors811.­html (2015) (last ac­cessed Jul. 16, 2016).
 
2 Legislative Counsel Committee, Annotations to the Oregon Revised Stat­utes, Cumulative Supplement - 2015, Chapter 811, https://­www.­oregonlegislature.­gov/­bills_laws/­ors/­ano811.­html (2015) (last ac­cessed Jul. 16, 2016).
 
3 OregonLaws.org assembles these lists by analyzing references between Sections. Each listed item refers back to the current Section in its own text. The result reveals relationships in the code that may not have otherwise been apparent.