Appendix 3 - Comparison of US Standards to IDEA Center Research
|
|
Dimension |
U.S. Standard |
Standard Deviation |
Median |
5th Percentile |
95th Percentile |
|
Wheelchair Dimensions |
|
|
|
|
|
|
|
|
Unoccupied Width |
660 |
77 |
609 |
475 |
712 |
|
|
Unoccupied Length |
1065 |
106 |
1066 |
900 |
1218 |
|
|
Handle Height (HH) |
915 |
80 |
895 |
754 |
1024 |
|
|
Armrest Height (AH) |
760 |
65 |
713 |
598 |
817 |
|
|
Seat Height (SH) |
485 |
49 |
528 |
454 |
607 |
|
|
Eye height (EH) |
1090-1295 |
75 |
1174 |
1047 |
1288 |
|
Clear Floor Space |
|
|
|
|
|
|
|
|
Occupied Width (W) - all devices |
760 |
60 |
669 |
596 |
800 |
|
|
Manual |
|
63 |
667 |
591 |
796 |
|
|
Power wheelchair |
|
129 |
752 |
592 |
801 |
|
|
Scooter |
|
71 |
714 |
625 |
810 |
|
|
Occupied Length (L) - all devices |
1220 |
105 |
1166 |
1009 |
1336 |
|
|
Manual |
|
104 |
1170 |
875 |
1299 |
|
|
Power wheelchair |
|
123 |
1253 |
1100 |
1361 |
|
|
Scooter |
|
86 |
1248 |
1110 |
1373 |
|
Reach Ranges |
|
|
|
|
|
|
|
|
High Forward Reach |
1220 |
299 |
1401 |
683 |
1702 |
|
|
Low Forward Reach |
380 |
125 |
609 |
884 |
464 |
|
|
High Side Reach |
1270 |
119 |
1597 |
1347 |
1704 |
|
|
Low Side Reach |
380 |
89 |
602 |
792 |
485 |
|
|
High Side Reach with Obstruction (255mm) |
1220 |
174 |
1517 |
1182 |
1702 |
|
|
High Side Reach with Deep Obstruction (610mm) |
1170 |
203 |
1245 |
926 |
1519 |
|
Knee and Toe Clearance |
|
|
|
|
|
|
|
|
Knee Clearance Height (KCH) |
685 |
69 |
640 |
515 |
742 |
|
|
Knee Clearance Depth (KCD) |
280 |
81 |
185 |
53 |
309 |
|
|
Toe Clearance Height (TCH) |
230 |
121 |
190 |
35 |
349 |
|
|
Toe Clearance Depth (TCD) |
150 |
94 |
188 |
143 |
386 |
|
Maneuver-ing Clearance |
|
|
|
|
|
|
|
|
90 Degree Turn ("L-Turn") |
915 |
|
|
|
|
|
|
Manual |
|
81 |
900 |
788 |
1000 |
|
|
Power wheelchair |
|
65 |
875 |
800 |
1000 |
|
|
Scooter |
|
26 |
1000 |
950 |
1000 |
|
|
180/360 Degree Turn (diameter-circular) |
1525 |
|
|
|
|
|
|
Manual |
|
266.9 |
1500 |
1300 |
2020 |
|
|
Power wheelchair |
|
303 |
1700 |
1300 |
2130 |
|
|
Scooter |
|
234 |
2300 |
1950 |
2500 |
Recommended value
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