Global enterprises spend over $1.4 trillion on business travel annually. They also invest heavily in the policies meant to govern it – consultants, booking guidelines, all-staff communications, compliance programmes. After all that, over half of business travellers admit they don’t check company policy when booking. What’s more, only 18% use their corporate booking tool for every trip.
What is driving this Policy-Behaviour Gap? According to behavioural science research, most daily travel choices are largely habitual and automatic, involving low information processing, driven by habit and convenience rather than rational evaluation of policy, cost, or carbon impact.
The question that remains: how do you break a habit?
Nudges break habits
A nudge influences without mandating. It changes the context in which a decision is made – the choice architecture – so that the desirable option is more visible, better understood, and easier to act on. The individual retains complete freedom, they simply have better information at the moment it matters most.
"A nudge is any aspect of the choice architecture that alters people's behaviour in a predictable way without forbidding any options or significantly changing their economic incentives. To count as a mere nudge, the intervention must be easy and cheap to avoid. Nudges are not mandates. Putting fruit at eye level counts as a nudge. Banning junk food does not." – Thaler & Sunstein
We use the EAST framework, developed by the UK's Behavioural Insights Team (BIT). EAST distills the science of behavioural change into four actionable principles.
E: Make it Easy
If it’s easy, more people will do it. Every additional step, every extra click, every moment of friction reduces the probability that the action is completed. Going further, making the desired behaviour the default is one of the most powerful tools in the nudge designer's toolkit.
A: Make it Attractive
People are drawn towards things that capture their attention and are going to positively impact our life. It’s important to understand your travellers here; what might be attractive to my business might not be attractive to my travellers, so this principle requires personalisation and contextual information to get right.
S: Make it Social
Human beings are profoundly social animals. We look to what others around us are doing — especially peers and people we identify with – as a guide to what is normal, acceptable, and expected. Informing a traveller how many people from their team are also making a particular decision will make it look more attractive.
T: Make it Timely
Perhaps the most underappreciated principle in practice is timing. A nudge delivered at the wrong moment – when the person is distracted, has already made their decision, or has no reason to act – will have negligible effect. The same nudge delivered at exactly the right moment, when the person is receptive and when action is most possible, can be highly effective.
Why Policy Alone Won't Change Behaviour
The Policy–Behaviour Gap in enterprise travel is not a failure of intent. It is a failure of design.
Travel decisions are usually habitual by nature. When an employee books a trip, they are rarely weighing up options from first principles – they are repeating a pattern. The same app, the same carrier, the same rough itinerary as last time. Habit is the path of least resistance, and in the absence of a compelling reason to deviate, most people won't.
This is the core problem. Policy documents, all-staff communications, and compliance programmes all assume a traveller who is actively evaluating their options. But habitual behaviour doesn't work that way. To disrupt it, the alternative needs to be meaningfully more attractive than the default – not just marginally better, not just technically available, but visible, relevant, and easy to act on at the exact moment the decision is being made.
That is precisely what nudges are designed to do. Not to mandate a different choice, but to change the context around the decision so that the better option is harder to ignore.
How EngageAI Is Built on Behavioural Science
Most behavioural interventions fail not because the theory is wrong, but because the execution is too broad – the same message, sent to everyone, at an arbitrary moment, quickly becomes noise.
Effective nudges require precision – and that starts with knowing which interventions are worth making at all. EngageAI is a library of effective behavioural interventions, each designed to be immediately actionable. For every travel programme, we analyse the data to identify which of those interventions will have the greatest impact, and deploy only those – tailored to specific patterns, routes, and behaviours.
Behaviour change in enterprise travel isn't about better policies or louder communications. It's about the right message, to the right traveller, at the right moment – and the compounding effect is bigger than most programmes realise.
Calculate what EngageAI's nudges could return to your business across three dimensions: money saved, time reclaimed, and emissions avoided using our ROI calculator.