Station displays

Creating a new design system for station displays across the Transport for London network.

Background

Transport for London (TfL) is a government body responsible for the transport system in Greater London.

The services TfL operate include London Underground, London Buses, Docklands Light Railway, London Overground, TfL Rail, London Trams, London River Services, London Dial-a-Ride, Victoria Coach Station, Santander Cycles and the Emirates Air Line.

Every day more than 31 million journeys are made across the network. The Underground has been an integral part of London’s history for 150 years. The network has expanded to 11 lines, and in 2015–16 carried 1.34 billion passengers. The 11 lines collectively handle approximately 4.8 million passengers a day.

Challenge

As London grows and the TfL network expands to accommodate demand, stations are becoming busier and more complicated environments to navigate.

Station displays are designed to provide customers with accurate and timely Real Time Information (RTI) in order to enable them to make informed decisions about their journey options. There are over 400 of these displays located across the London Underground network.

Customer research identified that station displays were failing to support customer needs and highlighted the following issues:

Legibility

Text and interface is difficult to read from a distance

Scannability

Hard to scan for relevant information on the move

Adaptability

Not adaptable to screen size and orientation

Scalability

Does not scale for future growth of the network

Station display in King's Cross St. Pancras northern ticket hall

Objective

The key objective was to redesign station displays so that customers could read and understand service information, allowing them to make vital decisions quickly. The system needed to be capable of handling the pressures of multiple issues affecting the network in a useful, simple and intelligent manner.

Approach

I led a team of designers (UX, visual and researchers) to run a series of design cycles over the course of six months. These cycles were split into short, defined sprints that delivered a user-centered solution sensitive to the needs of the business and technical constraints.

Research & analyse

I reviewed existing research, explored design theory and conducted customer and staff interviews, to better understand information needs.

Design & test

The team and I created a prototype using live data that we trialled with customers and staff in four underground stations, spending a week in each location capturing feedback.

Develop & iterate

I developed a design system and service application based on learnings from the trial.

Exploring the landscape

The first step of the project was to get a better understanding of the problems faced by customers in the station environment; exploring how these impact mindset, cognitive load and the end-to-end travel experience

Existing research

I spent several weeks sourcing research to ensure we were clear on existing insight and to avoid duplication of work.

Field research

My understanding of user needs at this stage was a little light, so I decided it was important to get some first-hand experience.

The team and I visited 3 different stations and conducted customer and staff interviews. We asked questions about travel habits, information needs and screen usage.

We also ran observation activities to better understand behaviour in the station environment.

RTI landscape

I reviewed all the TfL touch points and third party apps to see how they were implementing real time information.

Stakeholder engagement

There are many departments, people and systems involved in delivering real time information. I ran workshops and interviews with key stakeholders to understand their needs and objectives.

Mapping workshop

I ran a mapping workshop with the project team to better understand the landscape and complex environment. Identifying how and when digital service screens fit into the end-to-end experience.

Experience mapping workshop with team

British road signs

I researched similar design systems, such as the ambitious British Road Sign project, launched in 1965. Both experiences had a lot in common in that users needed to be able to make quick decisions about direction of travel whilst moving. Their effective system used shapes for different types of identification signs with legible type and bold pictograms.

Using shapes for different types of identification signs

Setting the direction

Research analysis

There was a huge amount of new and existing research. To help with analysis, I decided to create a project war room to gain clarity and to effectively guide stakeholders through my thought process.

I visualised key insight, considered how it affected the current experience, and how I could potentially prioritise short and long-term objectives.

Visualising key insight to help define objectives

Definition

During the discovery phase I identified huge issues with the location of some displays. In older listed stations some screens were completely hidden or obscured by architectural features. However, due to budget and planning restrictions, the decision was made to backlog the issue.

The short-term objective was to focus only on content redesign and deliver a system that could support key user needs identified from the research:

Actionable

Display actionable advice which helps last minute decisions on-the-go

Digestible

Deliver clear, bold, digestible design that works from a distance and whilst on the move

Localised

Localise information so that important updates can be spotted easily

Responsive

Ensure design is consistent, regardless of display size or orientation

Timely

Display timely content showing relevant service information at different times

Flexible

Ensure design is scalable and can include additional useful information in future

Creating the concept

Sketching

Firstly, I focused on sketching concepts that I thought may solve the identified issues. I spent quite some time in this phase; iterating, developing and testing different routes.

Prototyping

Once the team had internally agreed a direction, I started to see how this would look and function on a real station display. I created some assets and acquired a unit to test on.

Prototyping for testing

Design development

The team and I developed the design to handle different scenarios and created an HTML prototype to test with RTI data.

Developing design

Trials

After developing the prototype, I decided the best way to validate our approach would be to trial with customers and staff in a live station environment.

The team and I visited four stations and conducted a week of research in each to understand the environment and trial the design.

Gateway station

King's Cross St. Pancras

Destination station

Leicester Square

Metro station

St James’s Park

Local station

West Hampstead

Trial activities

Customer needs

We interviewed a broad range of customers to understand their need for real time information and their use of displays.

Interviewing customers at West Hampstead station

Staff expectations

We interviewed front line staff to learn how they use station displays and discover their future expectations of these units.

Interviewing staff at West Hampstead station

Environmental impact

We mapped each station environment to discover interaction patterns and understand the role of displays.

Observing interaction at Leicester Square station

The solution

On completion of the trials, the prototype was updated to include key insight. After multiple cycles of iteration and testing, the team felt in a good position to move into full delivery and initiate roll out across the network.

I worked closely with the development team, assisting with front-end code, to deliver a new design system with the following improvements:

Increased scale

Text size increased to help viewing from a distance

Improved contrast

Overlay text removed to eliminate any contrast issues

More relevant

Local disruption information prioritised

Less noise

Unnecessary information removed to improve focus

No duplication

Repeated content removed

Data only

Moved from using legacy feeds to unified API

How it compares

Imagine you've just arrived at Waterloo station and are looking to travel into central London. The example below shows how the old and new screen would present the same real time information on a disrupted day.

Old

New

A flexible system

The design system has the flexibility to adapt to different service scenarios.

Good service

1 line disruption

5 line disruptions

7 line disruptions

Night service

Industrial action

Fit for the future

The design system can also scale for useful information in future, depending on the location of the units and time of day.

Next train times

Station access

Mapping cards

Commercial opportunities

The design system can support localised events. This builds engagement, enhances the customer experience and generates revenue.

Stranger Things launch

London Marathon

New Year's Eve

The outcome

The live date is fast approaching, so watch this space. As the solution is rolled out, TfL will be monitoring the station environment to understand the impact of the new design system.

From a business perspective, TfL senior management were very pleased with the proposed solution and the approach to delivering information in the station environment.

New station display in West Hampstead ticket hall

My role

In my role as Design Lead, I was responsible for all aspects of the design process detailed above. I also played a major role in facilitating collaboration and engagement with the key stakeholders throughout the process.