Wayfinding Systems for Offices, Hospitals and Campuses in Tanzania

A wayfinding system is not a collection of signs. It is a sequence that takes a visitor from the gate to the room they came for using the minimum number of decisions, and the test of a system is whether a first time visitor can complete the journey without asking anyone. Most buildings in Tanzania have signage rather than wayfinding, which is why the reception desk spends the day giving directions.

The sequence starts at the arrival point. A visitor needs to know that this is the right building before anything else, which is the job of the entrance sign or the identity panel at the gate. The second thing they need is a directory or a floor list, placed where they naturally stop, which is the reception, the lobby or the lift lobby rather than the car park.

The third element is the floor sign at every lift lobby and stairwell. A visitor who gets out of a lift needs to know which floor this is before they can decide where to walk, and buildings that omit floor signs produce visitors who arrive on the right floor and turn the wrong way. It is the cheapest sign in the system and the one that fails most often.

The fourth element is the directional sign, and its placement is the whole design. A directional sign belongs at the point where the visitor must choose: at the end of a corridor, at a junction, at the top of a staircase. A sign that appears after the decision has been made is decoration, and a sign in a corridor with no choice to make is a waste of a plate.

The fifth element is the door plate, which confirms the arrival. A visitor who has followed a directional sign needs a door with a room name and number that matches what they were told, otherwise the journey ends in uncertainty at the exact moment it should end in reassurance. Door plates should be consistent in size and position across the building so that the eye learns where to look.

Safety and escape signage is the sixth element and it is regulated rather than optional. Escape routes need green signs at the decision points, fire equipment needs red signs above the equipment, and the material should be photoluminescent where a sign must work during a power cut. Photoluminescent vinyl absorbs light while the area is lit and glows in the dark long enough to guide someone out.

Hospitals have the strongest requirement and the weakest tolerance for error. A patient or a visitor arriving for an appointment is often anxious, sometimes unwell and frequently unable to read small text at a distance, so the type must be large, the contrast high and the language simple. Department names should match the names used in the appointment letter and on the website, because a visitor who was told to go to the outpatient department is looking for those exact words.

Colour coding is worth using in a hospital or a campus, where one corridor can look like the next. A distinct colour per wing, used consistently on the directory, the floor signs and the directional signs, gives a visitor a second channel of information that works even at a distance or in a hurry. The colour must be consistent everywhere, which is why the system should be designed before any individual sign is ordered.

Offices have a simpler problem and a different solution. The visitors who get lost in an office building are usually guests arriving for a meeting, and their journey is short: entrance, reception, lift, floor, suite, meeting room. A system that covers those six points is enough, and it can be produced in the company brand colours to double as interior branding.

Campuses are the largest version of the problem, because visitors arrive by car to a site with several buildings and then walk. The sequence becomes a site plan at the entrance, building identity signs, a directory at each building, floor signs and door plates. The failure mode is a campus where every building looks the same and the numbering is known only to the people who work there.

Production decisions follow the design. Indoor signs can use acrylic, aluminium composite or a rigid PVC panel with a laminated print, and the choice is about durability, weight and appearance rather than price alone. Directories need a surface that can be updated, either a magnetic or slotted system, because departments move and telephone numbers change, and a directory that cannot be updated becomes wrong within a year.

Sizes are set by viewing distance. A large rule of thumb is that text should be readable from a distance of about half a metre for every ten millimetres of capital letter height, so a sign that must be read from ten metres needs a much larger letter than one read at arm’s length. That single rule prevents the most common wayfinding failure, which is a sign that is correct and unreadable.

Accessibility matters as well. High contrast, a large type size, simple icons and a matt finish that does not glare all serve visitors who are older or visually impaired, and they cost nothing extra if they are set in the design rather than added later. A matt laminate on an indoor sign is a specification decision rather than a premium product.

The system should be documented before production so it can be extended later. A document that records the sign types, the sizes, the fonts, the colours, the material and the fixings means a door plate added next year matches the plates installed this year, which is what stops a building’s signage from drifting into inconsistency as it grows.

Vivid Measured designs and produces wayfinding signage in Dar es Salaam from the Muhoro Street, Jangwani workshop: entrance and identity panels, reception directories, floor and directional signs, room door plates, and the safety and escape signage that has to be right. The in-house designer prepares the layouts and the system document free, materials are chosen for the environment, and installation is by the same crew that produced the signs, on a written date.

To start, send photographs of the entrance, the reception, the lift lobby and two typical corridors, plus a floor plan if one exists and the list of departments or rooms. From that the workshop can propose the sign schedule, the sizes and the wording, and price the system as one job rather than as fifty separate plates. WhatsApp +255 785 078 827 is the fastest route, and contracts, LPOs and tender documents are processed formally under BRELA Company No. 181095733.

Bilingual wording is a practical decision in Tanzania. Swahili and English are both used by visitors, and a hospital that signs only in English excludes part of its patients while a system in both languages takes more space. The usual solution is to use both on the directory and the department names, and to use a simple icon on the directional signs so that the direction is understood before the words are read.

A numbering scheme is worth designing even in a small building. Rooms numbered by floor and position, with the first digit indicating the floor, allow a visitor to understand where they are from the number alone, and it allows the directory to be organised in a way that matches the physical building. A scheme invented one door at a time produces a building that only the staff can navigate.

Type sizes and fonts are production decisions that belong in the design. A clear sans serif at a generous size, with strong contrast and generous spacing between letters, reads better at a distance than a decorative face, and the same rule applies to both the printed panel and the cut vinyl. The system document should record the font, the sizes for each sign type and the minimum capital height for each viewing distance.

Maintenance is the part of a wayfinding system that nobody plans for. Departments move, doctors change, wings are renamed and a magnetic or slotted directory can be updated in an afternoon while a printed panel has to be reprinted. Where the building expects changes, the directory should be specified as an updateable system and the cost of the update should be known before it is needed.

Icons do more work than most designers expect. A toilet, a lift, a staircase, a pharmacy and an information desk are all recognised instantly as symbols, and the symbol survives a language difference, a low light level and a hurried visitor. The system should use a consistent icon set, drawn at a consistent size, and the same symbol should mean the same thing on every sign.

The final test of a wayfinding system is a walk through the building with someone who has never been there. Give that person an appointment card and a room number and follow them without helping. Wherever they hesitate is where a sign is missing or in the wrong position, and the list of hesitations is the work order for the next production run. No design review can replace that walk.

Emergency routes deserve a separate walk because they are used under stress. A visitor who is evacuating a building has no attention to spare for a directory, so the escape route signs must be visible from the corridor they are standing in, lit or photoluminescent, and pointed in the correct direction. A system that works in normal conditions and fails in the dark has failed at the only moment it mattered most.

Finally, the system should be priced as a project with a schedule rather than as a list of signs. A hospital that buys the entrance sign this quarter and the floor signs next year ends up with a building whose signage was produced by two different suppliers to two different specifications. One schedule, one supplier and one system document is cheaper over the life of the building than the sum of the individual orders.

A final note on the directory: it should be dated, because a directory without a date is assumed to be current and a directory with an old date tells the visitor to ask. A small date strip that can be updated with the department list is a cheap way to keep the system honest.