Supplemental Signal Heads
Advance Stop Bar
SIGNALS SIGNING & STRIPING
Supplemental Signal Heads
Additional signal heads allow drivers to anticipate signal changes farther away from intersections . Supplemental traffic signals may be placed on the near side of an intersection , far-left , far-right , or very high .
Cost $$
Advance Stop Bar
An advanced stop bar is a horizontal stripe painted ahead of the crosswalk at stop signs and signals to indicate where drivers should stop . An advanced stop bar reduces instances of vehicles encroaching on the crosswalk . Creating a wider stop bar or setting the stop bar further back may be appropriate for locations with known crosswalk encroachment issues .
Cost $
Low Cost / Quick Build alternative available
Relevant Crash Types Left Turns at Signalized Intersections Angled Crashes at Signalized Intersections
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
|
|
|
Increase Attentiveness and Awareness |
Relevant Crash Types Left Turns at Unsignalized Intersections Angled Crashes at Signalized Intersections Angled Crashes at Unsignalized Intersections Pedestrians at Signalized Intersections
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
|
|
|
Increase Attentiveness and Awareness |
APPENDIX B : COUNTERMEASURES TOOLBOX B-37