Editing Universal design (section)

=== Access and mobility ===

*[[Public transit]] systems with low-floor [[bus]]es that "kneel" (bring their front end to ground level to eliminate gap) and/or are equipped with [[Wheelchair ramp|ramp]]s rather than on-board lifts.<ref>{{cite book |url=https://archive.org/details/universaldesignv0000unse/mode/2up?q=kneeling |title=Universal design and visitability : from {{as written|acces|sability [sic]}} to zoning |date=2007 |isbn=978-1427618955 |editor1-last=Nasar |editor1-first=Jack L |location=Columbus OH |page=53 |oclc=173818638 |editor2-last=Evans-Cowley |editor2-first=Jennifer}}</ref>
*Smooth, ground level entrances without stairs
* Surface textures that require low force to traverse on level, less than 5 pounds force per 120 pounds rolling force
* Surfaces that are stable, firm, and slip resistant per ASTM 2047
* Wide interior doors (3'0"), hallways, and alcoves with 60" × 60" turning space at doors and dead-ends
* Functional clearances for approach and use of elements and components
* Ramp access in swimming pools