Day 2 Flashcards
Surfacing guide?
ASTM F2223
ASTM 1292
Think triax. Establishes impact attenuation performance criterion for playground surfacing material
G-Max
Max acceleration of a missile (head) during impact. 200gs
HIC
Head injury criteria, a measure of impact severity that combines both the time and energy. 1000 HIC
Critical Height
Max height in FULL FEET for a surfacing system that falls in accordance with F1292. How much the surfacing can take.
Fall Height
Highest vertical distance between the highest designated play surface of the play equipment
Max height of a see saw?
60”
Max and min height of a spring rocker
14”-28”
Min fall height for hill slide? And what is the critical height?
40” and 48”
Balance beam height for 2-5 and 5-12?
12” and 16”
Sliding poles must be how far bellow the highest portion of the pole to determine fall height?
60” below the top of the sliding pole
Min fall height for a for 3D net climber?
72”
How must a play item be designed to play with to not require protective surfacing?
With feet on the ground
Min to fro swing height for belt swings and tot swing?
12” and 24”
What is the minimum use zone for a stationary item
72”
What is the max height for max overlap of use zone for stationary equipment?
Less than or equal 30”.
After 30” half over lap to 108”
What 4 items cannot be overlapped
Motion area of vertical rotating equipment with radius of more than 20”
Motion area of swings
Standing rocking equipment
Exit region of slides
Motion area of horizontal rotating equipment with fall height of > 30” use zone.
No overlap with any other use zone.
Use zone for a to-fro swing
2 times the height from protective surfacing to pivot point. No overlap is allowed
Tot swing use zone?
Pivot point to seating surface times 2 with no overlap
How to set a use zone for a T swing
Measure up 60” and over 30” to create an imaginary bay, then apply use zone formula for open seats or bucket seats
How to determine tire swing use zone and what is the clearance zone measurement?
Clearance zone: Y+30”
Use zone: Y+72” (y is measured from top of sitting surface to pivot point)
How to determine the use zone for a combination swing
X from surface to pivot point from the seat. Also, y+72” for each seating surface.
Sitting spring rockers below 30”
Full overlap
Standing spring rockers use zone?
84” and no overlap
Slide use zones?
72” on sides of slides.
72”-96” on end matching height of platform the slide is coming off of
No overlap of exit regions with anything else
When is the slide use zone able to be overlapped?
Permitted for parallel slide bed paths
Distance between stepping surfaces for functionally linked play?
12” max for 2-5
18” max for 5-12
How many definitions of designated play surface?
2
One set by manufacturer
One by a 2”x2” square no more than 30 degrees
Max and minimum height of spring rockers
14” min and 28” max
Where do you determine the fall height of upper body equipment from?
Maximum height of structure to protective surface
Fall height determination on seesaws?
Maximum attainable height.
What is the only piece of play equipment with a maximum height?
Fully enclosed bucket seat. Not to exceed 96” (CPSC)
What is the maximum radius of rotating equipment can overlap?
20” radius or smaller. Over 20” can not overlap use zones
What four items cannot overlap?
Vertical rotating equipment with radius > 20”
Swings
Standing rocking equipment
Slide exits
Minimum use zone of a spinner without speed limiting requirements?
108” (the last 3 feet can be shared use zone)
Elements of a Comprehensive Playground Risk Management Plan
Playground Safety Policy Leadership (Safety Coordinator) Documentation Safety Audit Inspections and Maintenance
