Advance Placement Condition Descriptions

The placement of a warning sign is based on the potential hazard the sign warns of and the amount of advance warning needed by a road user. There are
two
 placement conditions:
  • Condition A
     represents a situation that involves a complex driving decision, often in heavy traffic conditions. Lane changes in heavy traffic, exiting maneuvers, and merging traffic are common examples. This condition typically applies to freeways and high volume urban arterial situations that require additional response time.
  • Condition B
    represents a condition where a vehicle may have to stop
    or slow down
     as a result of the potential hazard identified by the warning sign.