FUNCTION OVER CATEGORY
What does equal access mean when the conventional alternative does not provide equivalent function?
For my disability, the issue is not whether an institution can offer something familiar and call it accessible. The relevant question is whether the alternative preserves the mobility function I need without recreating the disabling burden the accommodation is intended to avoid.
Business · security · accessibility
These are my prosthetic mobility device. Conventional walking becomes too painful, so the skates replace walking by substituting controlled rolling and gliding for repeated stepping.
They do not replace an absent limb. They compensate for impaired locomotor function following longstanding pelvic, SI-region, and hip injury. Please ask about how I use them and any concern in this setting before assuming recreational use from their appearance.
An unfamiliar mobility device is not automatically an unsafe recreational device. Ask what function it serves, name any specific concern, consider the person's demonstrated operating ability and relevant history, and discuss workable conditions. Escalate and document a setting-specific decision when needed. A past accommodation informs this review; it does not grant universal permission.
The equality question
Identify the practical mobility function the person needs.
Do not assume a familiar option is equivalent.
Assess the actual environment and behavior.
Use reasonable, reviewable operating conditions.
The central principle
A mobility aid should not be evaluated merely by whether it resembles a wheelchair, cane, walker, or another familiar category. For Troy, inline skates function as a mobility aid because they replace painfully debilitating Walking with a different movement strategy that provides useful mobility.
Repeated same-day measurements quantify that functional difference.
The Science Walking vs Skating
Function over category.
INDIVIDUALIZED ASSESSMENT
DOJ ADA mobility-device guidance recognizes that people with disabilities may use mobility devices that best suit their individual needs, including devices not originally designed as disability aids. It provides a useful functional framework: individual need, device function, the actual environment, legitimate safety requirements, and actual risk rather than categorical assumptions.
On October 15, 2007, FTA ordered an actual accommodation for disability-related skate use in BART concourses and BART-controlled outside areas, subject to fact-based restrictions. It accepted platform and heavy-rail restrictions and reserved disability, mobility-aid classification and fundamental-alteration questions. Nineteen years later, the practical issue is how prior verified function and scoped decisions should inform the next institution’s individualized actual-risk review. Portable recognition with bounded reassessment preserves local safety review; it is not universal permission.
Equivalence requires more than availability
Providing an alternative does not answer the equality question if it materially changes or removes the function being accommodated.
Conventional category
These may be familiar options. Familiarity alone does not establish functional equivalence.
Functional question
Pain-limited Walking: the fact that walking is conventional does not make it functionally equivalent mobility. Transportation: a service labeled accessible does not automatically provide equivalent access if its configuration creates materially different mechanical demands or prevents needed positioning and repositioning. Mobility-aid continuity: requiring removal of the skates can remove the very function for which an accommodation is needed.
Safety and access
The request is not unrestricted skating everywhere. The question is whether the mobility aid can be used under reasonable operating conditions appropriate to the environment.
Consider the space, traffic, pedestrian proximity, and boarding situation.
Consider controlled speed, positioning, and procedures appropriate to the setting.
Address concrete risks rather than relying on category alone.
Use reviewable conditions, including where rolling is or is not appropriate.
Historical operating conditions and institutional responses belong in the Legal Record.
A modern measurement boundary
For decades, the functional difference had to be explained through history, biomechanics, and lived experience. Now it can also be measured. Walking and skating show a dramatically different functional and mechanical state; transportation results show that vehicle configuration can materially change measured mechanical exposure.
Proposed portable accommodation
Functional need → individualized evaluation → accommodation → successful use → new institution/setting → recognition must be established again.
This recurring pattern draws on the documented history and reported experiences in the Legal Record; each source retains its own scope and limitations.
Functional need → evidence-based review → recognized non-standard mobility aid → voluntary Portable Mobility Record → portable verification → setting-specific operating conditions where needed.
The proposed Portable Mobility Record preserves reviewed functional facts and conditions. It is not a universal authorization or a prerequisite for accommodation. Driver's-license or state-ID notation is an optional implementation concept.
Inline skates are the demonstrated use case. The framework can also support other individually established non-standard mobility technologies, including exoskeletons.
Documentary history
The equality principle developed through encounters with transit systems, courts, agencies, transportation providers, and public facilities. The Legal page documents that history source by source.
Equal access is not achieved by offering the most familiar alternative. It is achieved when the accommodation preserves the function the person actually needs.