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All across the Great Western territory => Across the West => Topic started by: grahame on October 07, 2019, 08:39:37



Title: Wheelchair maximum dimensions - update request
Post by: grahame on October 07, 2019, 08:39:37
From https://www.gwr.com/plan-journey/journey-information/assisted-travel

Quote
GWR train services can carry manual or powered wheelchairs up to the following dimensional and weight limitations: Width 700mm (610mm on Coach L First Class HST) Length (including footplates) 1200mm Weight (including passenger) 300kg. First Class Accommodation on high speed trains (HST) contains no wheelchair accessible toilet.

With remaining HSTs not having first class accommodation, is the 700mm / 1200mm footprint now common across all service? 



Title: Re: Wheelchair maximum dimensions - update request
Post by: stuving on October 07, 2019, 12:34:13
From https://www.gwr.com/plan-journey/journey-information/assisted-travel

Quote
GWR train services can carry manual or powered wheelchairs up to the following dimensional and weight limitations: Width 700mm (610mm on Coach L First Class HST) Length (including footplates) 1200mm Weight (including passenger) 300kg. First Class Accommodation on high speed trains (HST) contains no wheelchair accessible toilet.

With remaining HSTs not having first class accommodation, is the 700mm / 1200mm footprint now common across all service? 

That certainly should be the case, since it is required by law.

Those numbers were in the DDA (1995), and subsequently mandated for pre-existing trains by the end of this year. Originally they were based on 95% of all wheelchairs, and as most were then standard unpowered ones are close to that size. What the coverage is now is another matter.

A more detailed version of the same numbers is cited as Annex III of "Design Standards for Accessible Railway Stations"* (DfT):
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Transportable wheelchair dimensions
This annex identifies the maximum engineering limits for a transportable wheelchair.
Characteristics
The minimum technical requirements are:
Basic dimensions
• Width of 700 mm plus 50 mm min each side for hands when moving.
• Length of 1200 mm plus 50 mm for feet.
Wheels
• The smallest wheel shall accommodate a gap of dimensions 75 mm
horizontal and 50 mm vertical.
Height
• 1375 mm max including a ninety-fifth percentile male occupant.
Turning circle
• 1500 mm × 1500 mm.
Weight
• Fully laden weight of 300 kg for wheelchair and occupant (including any baggage).
Obstacle height that can be overcome and ground clearance
• Obstacle height that can be overcome 50 mm (max).
• Ground clearance 60 mm (min).
Maximum safe slope on which the wheelchair will remain stable
• The wheelchair shall have dynamic stability in all directions at an angle of 6 degrees.
• The wheelchair shall have static stability in all directions (including with brake applied) at an angle of 9 degrees.

The RVAR defines space size (750x1300) not chair size. The PRM TSI (in a draft version) has 700+50 x 1250+50, which is different. This applies (I think) to interoperable rolling stock - isn't there such a thing as an interoperable wheelchair?

The design guide has a long list of references, including standards of which the primary one is probably BS 8300:2009 "Design of Buildings and their Approaches to Meet the Needs of Disabled People – Code of Practice".

* Spot the (probably not) deliberate error!



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