1 Hawaii Strategic Highway Safety Plan: FACILITY DESIGN Dan Galanis Injury Prevention and Control Program Hawaii Department of Health 1250 Punchbowl St., Room 214 Honolulu, HI Ph:

2 Overview of presentation on Facility Design Three main areas: –Head-on collisions –Running off the road –Crashes at intersections Fatal traffic crashes (FARS data) Non-fatal traffic crashes (MVAR/DOT crash data) –Traffic only, i.e. crashes on public roads Excludes crashes in parking lots, driveways, military facilities, gated sub-divisions, etc. –Unintentional in nature Excludes suicides, deaths of undetermined intent –Available for fatality data only

3 Head-on collisions -- definitions Includes only crashes on non-junction sections of roadways –Excludes crashes in intersections or “intersection related”, “junction area”, “off road”, etc. Excludes crashes involving pedestrians or bicyclists Includes collisions described as –“head-on” 69% of fatal cases, 30% of non-fatal cases –“sideswipe—opposite direction” 8% of fatal cases, 36% of non-fatal cases –“angle—opposite direction” 22% of fatal cases, 34% of non-fatal cases

4 Annual number of fatal and non-fatal head-on* traffic collisions in Hawaii, (Includes only non-intersection crashes. *“Head-on” includes sideswipe and angle collisions in opposite directions.)

5 Characteristics of head-on traffic crashes in Hawaii,

6 Running off the road -- definitions Excludes crashes involving pedestrians or bicyclists Includes only crashes on non-junction sections of roadways –Excludes crashes in intersections or “intersection related”, “junction area”, etc. Fatal crashes (FARS) include crashes due to “failure to keep in proper lane” –64% of those described as ROR, including all 64 from Non-fatal crashes includes crashes due to… –“Overturned/ran off roadway” (Harmful Action section) non collision: 35% of ROR –“Collision w/ object” (Harmful Action section)—not other vehicle: Guardrail (7%), island/raised median (8%), embankment/wall (9%), utility pole (9%), etc.---total: 53% of ROR –Vehicle collision “Off-Roadway” (Location of Harmful Event section): 9% of ROR

7 Annual number of fatal and non-fatal traffic crashes involving running off the road in Hawaii, (Includes only non-intersection crashes.)

8 Characteristics of crashes related to running off the road in Hawaii,

9 Crashes at intersections -- definitions Includes crashes at intersections and those coded as “intersection related” (FARS) and “intersection area” (DOT) –Excludes crashes in driveways, alleys, entrance/exit ramp, etc Priority sequence: pedestrians > bicyclists > motorcyclists > occupants –E.g. motorcyclist hitting a pedestrian  pedestrian crash

10 Distribution (number and percent) of fatal and non-fatal traffic crashes in intersections in Hawaii,

11 Annual number of fatal and non-fatal traffic crashes in intersections in Hawaii,

12 Characteristics of vehicle crashes at intersections in Hawaii,

13 Characteristics of pedestrian/bicyclist crashes at intersections in Hawaii,

14 Fatal traffic crashes in Hawaii, by type of crash and posted speed limit,

15 Fatal traffic crashes in Hawaii, by type of crash and traffic way flow,

16 Fatal traffic crashes in Hawaii, by type of crash and roadway function class,

17 Fatal traffic crashes in Hawaii, by type of crash and relation to roadway junction,