Lifts & Vertical Movement

A building with more than one level makes a promise every time it puts a function upstairs: that people can get there. A staircase alone breaks that promise for a large share of the population - wheelchair users most obviously, but also people with heart or lung conditions, painful joints, poor balance, a temporary injury, a heavy load or a small child in arms. So the first principle of vertical movement is not about lift specification at all; it is a planning rule: provide an accessible means of moving between every level that people use, and never rely on stairs as the sole route.

In practice this usually means a lift, because - as Lesson 2.3 showed - a ramp only works for small rises before its capped gradient turns it into an impractical monster. For a change of a storey or more, the accessible route between levels is a lift, positioned on the main circulation so it is as convenient and dignified as the stairs beside it, not hidden in a service core reached through a back corridor. A lift a person has to hunt for, or ask a staff member to operate, is a second-class route; the accessible way up should be as easy to find and use as the stairs.

This also reframes how you think about the stairs themselves. Beautiful stairs are welcome - they serve most people and can be the heart of a building - but they are one of at least two vertical routes, never the only one. When you place a staircase, place its accessible counterpart in the same breath, on the same route, and the building becomes one where every floor belongs to everyone. Get this planning move right and the rest of the lesson is detail; get it wrong and no amount of good lift specification rescues a building whose upper floors were never reachable.

> Every time you send a function upstairs, ask in the same breath: how does someone who cannot use the stairs get there? If the honest answer is 'they cannot', the design is not finished.

An ordinary small lift can be as excluding as stairs if a wheelchair cannot fit, turn, or reach the buttons. An accessible passenger lift is sized and fitted so that a person using a wheelchair can enter, ride and exit comfortably, ideally without having to reverse out blind. Several things make a lift accessible, and they work together.

First, the car dimensions. The internal car must be large enough for a wheelchair plus, ideally, a companion, and - for the best experience - large enough to turn around in, so a person can enter facing forward and leave facing forward rather than reversing out into a corridor they cannot see. Minimum accessible car sizes are set by code and vary with the building and the lift's role; a commonly cited accessible car is on the order of around 1100 mm by 1400 mm as a smaller standard, with larger cars preferred where turning or stretchers are needed. Treat any figure as typical guidance and confirm the required size locally.

Second, the doors. Lift doors should be automatic, power-operated, and give an effective clear width that matches the accessible doors elsewhere in the building (recall Lesson 2.2), with a dwell time long enough for someone moving slowly to enter and exit before they close, and door-edge sensors that reopen rather than closing on a person. Third, the fittings inside: a handrail to steady against, a mirror or reflective surface on the wall opposite the doors so a wheelchair user can see behind them to reverse out where turning is not possible, and a firm, slip-resistant, level floor that meets the landing flush. Finally, the landing at each floor must be a level, generous space to wait and manoeuvre, with the call button reachable and the arriving lift clearly signalled. Get these together and the lift stops being a box and becomes a genuine, dignified route between floors.

A lift a person can enter is still useless if they cannot work it or cannot tell what it is doing. The controls and signals are where lifts are made usable across the full range of vision, reach, dexterity and hearing - and where cheap lifts most often fail.

Start with reach. Both the landing call buttons and the car control panel must be within the comfortable reach range of a seated wheelchair user as well as a standing person - not mounted high on a panel a seated person cannot stretch to. A common approach places controls within a height band reachable from a wheelchair (broadly in the region of 900 to 1200 mm above the floor, with the exact band set by code) and set far enough from any internal corner that a seated person can reach across to them. The buttons themselves should be operable with a closed fist or a knuckle - not tiny, not requiring a firm pinch.

Next, perception through more than one sense, because users have different abilities. Buttons should carry raised tactile markings and Braille, and stand out by colour and luminance contrast, so a blind or partially sighted person can find and read them by touch and low-vision users by sight. The lift must announce itself and its progress in both sound and sight: an audible signal and a spoken or visual floor indicator inside the car so a blind person knows which floor they have reached, and a visible indicator (and audible signal) on the landing so a deaf person knows the lift has arrived and which way it is going. This dual-channel principle - never rely on one sense alone - runs through all of inclusive design and is acute in a lift, where a person is briefly sealed in a box and entirely dependent on its signals.

Finally, the human details: clear, well-lit, uncluttered controls; an emergency communication system that works for people who cannot hear or speak (a two-way system with visual confirmation that the call has been received, not audio alone); and enough time in every interaction for someone who moves or reacts slowly. A lift designed to these principles serves a blind commuter, a Deaf student, a wheelchair user and a tired parent equally - which is exactly the point.

Not every situation suits a full passenger lift, and the toolkit of vertical movement has other members - each with a right and a wrong place. A platform lift (a vertical platform lift, or an inclined platform lift that runs along a staircase) carries a wheelchair user over a smaller change of level - a few steps, a raised stage, a split level, or a modest number of floors - where a full passenger lift is impractical or the rise is small. Platform lifts are valuable and often the right answer for retrofits and small rises, but they trade off against the passenger lift: they are usually slower, smaller, carry fewer people, and can feel less dignified (some need a key or continuous pressure on a button to run). The professional judgement is to use a platform lift where it genuinely fits - a small rise, an existing building, a constrained space - and a full passenger lift where the traffic and the number of storeys warrant it, rather than defaulting to the cheaper device on a building that needed a proper lift.

There are cousins worth knowing: through-floor lifts in homes, connecting two levels of a dwelling for a resident who can no longer manage the stairs; and step lifts and other devices for particular constraints. Each is a tool for a context, and the same rule applies - match the device to the rise, the traffic and the dignity the situation deserves, and verify what your code permits for the building type.

And then the hardest, most-forgotten point of the whole module: a lift that gets people UP must be matched by a plan to get people OUT. Ordinary lifts must not be used in a fire - so a person who came up in the lift can be stranded on an upper floor precisely when they most need to leave. The answers are covered fully in Module 8, but flag them now: refuge areas (protected places to wait safely for assisted evacuation), evacuation lifts (specially designed and protected lifts that can be used in an emergency), and personal evacuation plans. Designing a person into a building without designing them out of it in an emergency is not access - it is a trap. Vertical movement is only complete when it works both ways: everyone can get to every floor, and everyone can get safely back down when it matters most.