Memorandum - NHTSA

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IV-23 FTA guidelines recommend either a static or dynamic test. The Access Board has deferred to <strong>NHTSA</strong>'s expertise in establishing a viable outer bamer or retention device test. 10. Inner Roll Stop Strength (S5.4.8 and S6.5) - In addition to a wheelchair retention device 01 outer bamer, the proposed platform lift systems designed for buses and MPVs >4,450 kg (l0,CllOO lbs.) GVWR, are to have an Inner Roll Stop which prevents the wheelchair fiom inadvertently rolling or sliding off the inner edge (vehicle side) of the platform and prevents contact (pinchii 18) of occupant foot/toes between the WC lift platform and the vehicle structure. No inner roll stclp is required on personal use vehicles
IV-24 The lift is raised to the floor level of the bus or MPV, and to conform to requirements, the innc:r roll stop must prevent the wheelchair test device from being pinched between the lift and any other structure (e.g., bus body or door structure) throughout the range of passenger operation. This simulates the potential for pinching of WC user feetkoes. For personal use vehicles 4,540 kg (10,000 lbs.) GVWR ir which case the lift must be able to be loaded with the WC in a forward or rearward direction, whereas for personal use vehicles
Page 1 and 2: Subject: From: To: U.S.Department o
Page 3 and 4: TABLE OF CONTENTS Summary..........
Page 5 and 6: s-2 The annual number of persons in
Page 7 and 8: 11. BACKGROUND 11- 1 Guidelines per
Page 9 and 10: 11-3 and strength; control panel le
Page 11 and 12: 111-2 Generally, there is very litt
Page 13 and 14: 111-4 Table 111-1 Preliminary Natio
Page 15 and 16: 111-6 The NEISS database lacks the
Page 17 and 18: 111-8 Public Transit & Paratransit
Page 19 and 20: w-2 identifying the relevant lift c
Page 21 and 22: IV-4 MEASURE RED FLASHING BEACON OR
Page 23 and 24: IV-6 Acceleration is to be measured
Page 25 and 26: IV-8 FIGURE IV-2 :i a la Y t Permir
Page 27 and 28: IV-10 and vehicle size. This requir
Page 29 and 30: v-12 7. Prepare test block fnction
Page 31 and 32: IV-14 Gaps, Transitions and Opening
Page 33 and 34: Figure m-3 Allowable transition dim
Page 35 and 36: IV-18 sliding or being driven over
Page 37 and 38: v-20 traveling too fast, in the for
Page 39: WC Retention Overload Test 67.13) I
Page 43 and 44: N-26 (2 square inches) applicator a
Page 45 and 46: N-28 sufficient to adequately illum
Page 47 and 48: IV-30 lack of follow-up training. N
Page 49 and 50: IV-32 16. Backup Operation (S6.9) -
Page 51 and 52: IV-34 This “looked but did not se
Page 53 and 54: W-36 e Clearance test block (S7.1.3
Page 55 and 56: IV-38 Structural Integrity, to iden
Page 57 and 58: IV-40 NHTSA assumes that the large,
Page 59 and 60: V. BENEFITS v-1 Serious injuries an
Page 61 and 62: v-3 retention strength test, CG and
Page 63 and 64: v-5 objective terms which should le
Page 65 and 66: VI-2 subject to the ADA requirement
Page 67 and 68: VI-4 averaged 35,000 units per year
Page 69 and 70: VI-6 In order to make an estimate o
Page 71 and 72: Cost Estimates VI-8 New Lift Hardwa
Page 73 and 74: VI- 10 close a circuit and send a s
Page 75 and 76: VI-12 FMVSS No. 141 Lift Certificat
Page 77 and 78: VI- 14 Total Cost for Public-Use Li
Page 79 and 80: VII. LEADTIME VII-1 Since the lift-
Page 81 and 82: VIII-2 Table VIII-1 SUMMARY OF SBA
Page 83 and 84: VIII-4 many private transit bus ope
Page 85 and 86: VIII-6 Many hundreds of small busin
Page 87 and 88: VIII-8 adaptive driving equipment f
Page 89 and 90: VIII-10 Facts Book, 7.2 percent of
Page 91 and 92:
A- 1 REFERENCES 1. Americans with D
Page 93 and 94:
A-3 25. A Directory of UMTA-Funded
Page 95 and 96:
Figure 1 Dirgm Showing the Part8 of
Page 97 and 98:
5 Figure 2. Isometric View of Platf
Page 99 and 100:
PLATFORM DEFLECTION ANGLE DEFLECTIO
Page 101 and 102:
.. Lln UP, OUTER BARRIER UP LIFT MI
Page 103 and 104:
i I i I I I I i 1 i I ! j I I ~ __
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Memorandum - NHTSA

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