Technical Booklet R Access to and Use of Buildings·Page 72·9.6
Vertical circulation provision
Vertical circulation to any storey should be provided by a common stair and where a lift is provided, by a suitable passenger lift. The most suitable means of access for people with disabilities is a passenger lift.
A vertical circulation route to any storey should be provided by a common stair and where a lift is provided, by a suitable passenger lift.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet R - Access to and Use of Buildings.pdf