Can Personal Travel Plans (PTP) actually change how people commute?

A Personal Travel Plan can show somebody different ways they could get to work. It cannot make them choose any of them.

That distinction matters, because it is tempting to assume that if employees are given better information about walking, cycling or public transport, behaviour change will naturally follow. Sometimes it might, but commuting decisions are influenced by much more than information alone.

Cost, convenience, habit, confidence, caring responsibilities, working patterns and the quality of the alternatives themselves can all affect how somebody travels. So the value of a Personal Travel Plan is not that it guarantees behaviour change. It is that it can remove one important barrier: not knowing what realistic alternatives exist, or how they compare with the journey somebody makes today.

Information can matter

Consider an employee who has driven to the same workplace for several years. There is now a direct bus that works with their hours, but they have never used it and do not know exactly where it stops, how long it takes or what it costs.

Perhaps they assume it will be substantially slower than driving when, in reality, the difference is relatively small. Simply making that information visible could be enough for them to consider trying it.

The same could apply to somebody who discovers that cycling would take less time than expected, or that public transport compares more favourably with their current driving and parking costs than they realised.

That is where personalised information has an advantage over generic travel communications. It does not simply say:

“Have you considered taking the bus?”

It can say:

“This is the bus journey that works for your commute. This is how long it takes, what it costs and how it compares with what you do today.”

For some people, that may be enough to prompt action. But not for everyone.

Knowing an alternative exists is not the same as wanting to use it

Two employees could receive very similar Personal Travel Plans and respond completely differently. One sees that the train costs less than driving and decides to try it next week. Another looks at the same comparison and decides the additional journey time is not worth it.

Someone else might have a realistic cycling journey but lack confidence riding on part of the route. Another person may have a good public transport option but value the flexibility of having their car available after work.

The travel information matters, but what somebody does with it depends on their own circumstances and priorities. That is why a Personal Travel Plan should support a decision rather than attempt to make the decision for the employee.

CalCommuter is deliberately mode-neutral. The aim is to provide information and evidence about realistic options, while employees remain free to make their own travel choices.

Different people care about different things

Carbon emissions may be important to an organisation, and they may also matter to some employees. But they are unlikely to be the only consideration.

For somebody else, the most interesting part of their Personal Travel Plan might be that an alternative costs less. Another person may care more about journey time, reliability or flexibility. Someone might value being able to exercise as part of their commute, while somebody else simply wants to reduce the stress associated with parking.

Experience from workplace travel planning suggests that practical considerations such as cost, convenience and travel stress can be particularly important when communicating with employees.

A useful Personal Travel Plan therefore should not assume there is one universal reason to change. Its role is to make the relevant information visible so the employee can decide which parts matter to them.

A realistic alternative has to exist first

There is also a more fundamental limitation: information cannot make a poor alternative good.

If somebody's shift finishes after the last practical bus has left, explaining the timetable more clearly will not solve their problem. If a public transport journey takes several times longer than driving, another email encouraging sustainable travel will not make it competitive. And if somebody needs a vehicle during their working day, that may rule out alternatives that otherwise look attractive.

This is why the starting point for behaviour change should be viability, not persuasion.

As explored in Why Showing Unrealistic Travel Options Can Damage Employee Trust, presenting theoretical alternatives as though they are realistic can undermine confidence in the whole process. CalCommuter therefore focuses on identifying practical rather than theoretical alternatives, using viability rules around factors such as journey time, cost, working times and journey complexity.

Only once a credible alternative exists does the question of behaviour change really become relevant.

Sometimes information is enough

For some employees, the barrier may genuinely be awareness. They may never have checked the alternatives, a new transport service may have appeared, their working pattern may have changed, or they may simply have continued travelling the way they always have because there has been no particular reason to reconsider it.

A useful Personal Travel Plan creates that moment of reconsideration. It puts the current commute and realistic alternatives next to one another and gives the employee something concrete to evaluate.

Some people may act on that information without any further intervention. That matters when considering Personal Travel Planning at scale: it is not necessary for every Personal Travel Plan to lead to a one-to-one conversation for the plan itself to have value.

What does our own feedback suggest?

We have also asked employees directly about the personalised commute plans they receive through CalCommuter. The results reinforce the idea that Personal Travel Plans can play a useful role in behaviour change, while also showing why information alone will not work for everybody.

Across five CalCommuter feedback surveys, 22% of respondents said they had learned something new from their personalised commute plan.

whose PTP included an identified viable alternative, just over one in four (26%) said they would try it, might try it, or wanted to find out more first.

That does not mean 26% subsequently changed how they travelled. These were voluntary feedback surveys capturing immediate reactions and intentions rather than observed changes in commuting behaviour, so they should be treated as indicative rather than as a measured mode-shift rate.

But they do suggest that showing somebody a credible alternative can create an opening. For some people, the information may be enough to prompt a trial. For others, it may simply move an option from something they had never seriously considered to something they want to understand better.

The comments help illustrate what that can look like. Some respondents talked about considering cycling or public transport, while others reflected on the cost, journey time or emissions associated with their existing commute. In some cases, the plan simply confirmed that the way they were already travelling remained the most practical option.

There was also a smaller but notable group — around one in nine respondents overall — who said receiving their plan had changed how they thought about their commute.

Again, changing how somebody thinks is not the same as changing how they travel. But it can be an important first step. A person might discover an option they had not considered, realise an alternative is closer in time or cost than expected, or decide they want to find out more before doing anything differently.

The Personal Travel Plan does not need to do the whole job. Sometimes its role is simply to turn an unknown or unconsidered alternative into something worth thinking about.

Sometimes a little more support could make the difference

For another group, the alternative may look reasonable but there is still something preventing action. Perhaps somebody could cycle but does not feel confident, or they are interested in public transport but are unsure which ticket to buy. Trying a different commute can also feel risky when the current routine is familiar.

That is where support from an employer, adviser or behaviour-change practitioner can add another layer of value. The Personal Travel Plan provides the starting point, allowing the conversation to focus on the actual barrier rather than spending time establishing whether an alternative exists in the first place.

That might lead to further information, training, incentives, facilities, travel support or simply reassurance. The important point is that the intervention follows the opportunity, rather than everybody receiving the same intervention regardless of whether it is relevant.

Sometimes the barrier is not behavioural at all

There will also be people for whom information and encouragement are unlikely to make much difference because the underlying conditions are the problem.

Public transport may not operate at the right time. The active travel distance may be unrealistic. Caring responsibilities may make a particular alternative impractical. Someone may need a vehicle during the working day.

In those situations, the employee cannot reasonably be expected to solve the problem through motivation. The barrier is structural.

That might point towards different questions for employers, transport operators or public bodies. Could working times change? Could transport provision improve? Could workplace facilities or policies alter the situation? Or is driving simply likely to remain the most practical option?

Recognising that distinction helps prevent behaviour-change programmes from treating every commuting problem as an individual choice problem.

Habit matters too

Even when a good alternative exists, people do not reconsider their commute every morning from first principles. Travel often becomes routine, and once somebody has found a way of getting to work that broadly works, there may be little reason to investigate alternatives.

A Personal Travel Plan can therefore have value simply by creating a reason to look again. It does not have to persuade somebody that their current journey is wrong.

It can simply put credible information in front of them:

This is what you do today. These are the realistic alternatives available to you. This is how they compare.

The choice remains theirs.

From providing information to targeting support

This becomes particularly interesting when Personal Travel Plans are looked at across a whole workforce.

Some employees may have strong alternatives and need little additional support. Others may have viable options but face relatively small barriers where further engagement could help. And some will face structural barriers where individual behaviour-change activity is unlikely to be the answer.

That means Personal Travel Planning can contribute to something broader than individual journey advice. The same analysis can help an organisation understand **where the realistic opportunity for change actually sits**.

Rather than treating every employee as equally likely to change, organisations and practitioners can begin to ask:

• Who already has a strong alternative?

• What type of alternative is it?

• What barriers might still prevent its use?

• Where could additional support have the greatest value?

• Which employees face structural rather than behavioural barriers?

Most organisations cannot engage every employee equally, so identifying who, where, why and with which intervention is central to making better use of limited behaviour-change resources.

That changes the question from:

“How do we persuade more employees to travel sustainably?”

to:

“Where is there a realistic opportunity for change, and what might help in each case?”

So, can Personal Travel Plans change behaviour?

Not by themselves in every case, and they certainly cannot guarantee that somebody will travel differently. Travel choices remain personal, and actual outcomes depend on both employee choices and the actions organisations take around them.

But our feedback suggests that, when people are shown a realistic alternative, some will try it, some will consider it and some will want to know more. For others, the plan may simply confirm that their current journey remains the most practical choice.

Good personalised travel information can remove uncertainty, reveal alternatives people did not know existed and correct assumptions about journey time or cost. It can give somebody a reason to reconsider a long-established routine and provide the foundation for a more useful conversation where further support is needed.

A Personal Travel Plan cannot make somebody change their commute.

But it can help establish where change is genuinely possible, what the realistic choices are, and where further support might make a difference.

That is a much better starting point for behaviour change.