User talk:Cornicehopper/sandbox

Assured Clear Distance Ahead
The Assured Clear Distance Ahead (ACDA) as a rule requires a roadway driver, in their exercise of ordinary care, to be able to come to a full stop within the limits of which the user can be assuredly clear of hazards. This distance is typically both determined and constrained by the proximate edge of clear visibility, but it may be attenuated to a margin of which beyond hazards may reasonably be expected to spontaneously appear. The ACDA rule is near universal and is a spatial component to the common law basic speed rule.

Decisional law usually settles the circumstances by which a portion of the roadway is assuredly clear. However, many states have further passed statutes which requires their courts to more inflexibly weigh the ACDA in their determination of reasonable speed.

ACDA explicit in statute, by state
Some states have further emphasized an ACDA rule in statute, distinguishing it specifically as a citable driving offense, thus burdening an offending driver to rebut a presumption of negligence.

Vehicle Code Sections:
 * Iowa-- Code 321.285
 * Michigan- Section 257.627
 * Ohio-- Revised Code 4511.21(A)
 * Oklahoma--§47-11-801
 * Pennsylvania--75 Pa. Cons. Stat. § 3361