Your next travel policy change, tested before it lands.
Meridian by PredictX is travel policy intelligence software: it turns your travel and expense policy into a working model of your programme.
PredictX works with 4 of the 6 largest global T&E programmes and won gold for AI Innovation at the Business Travel Awards Europe 2026.
What is a travel policy?
A travel policy is the set of rules a company sets for how its employees book, take and pay for business travel: which cabin they fly, what a hotel night may cost, when the train replaces a flight and what can be claimed back.
Most organisations call it a corporate travel policy or a travel and expense policy.
Changing one means answering to finance for the cost and to your travellers for the rules. In GBTA's January 2026 poll, 59% of travel buyers named balancing cost controls with traveller satisfaction as a big or major challenge for 2026.
"Even if your goal is to save money, the biggest impact on that is the behaviour of your travellers. A better hotel rate is good. But travellers staying at the most expensive hotel, or booking outside the programme, move spend massively more."
What is travel policy simulation?
Travel policy simulation is testing a rule change on your own travel data before it takes effect. You see what one rule would do to cost, CO2 and traveller impact, with every other rule unchanged.
Try it on a sample programme
Sample dataMove any rule to see the effect.
Rules
What changes
Annual programme cost
from
CO2 a year
from
Disruption score
estimate
Saving by rule
Disruption limit in this sample:
This sample model needs JavaScript to run.
Sample programme with illustrative figures. Not a forecast for your programme.
Meridian's Policy Lab runs the simulation and shows each rule's share of the saving. Save versions as scenarios: cost-first, carbon-first and the one finance will sign off.
You can start before your travel data connects: with the PredictX team, Meridian scores your policy document against a best-practice standard and shows the gaps. Until it connects, the simulation works from starting assumptions.
For a directional figure on one rule, try the policy simulation calculator.
Run this on a programme like mine →Which travel policy rules can you test before you change them?
You can test any rule in these 8 families before it changes, from cabin class and hotel caps to approval thresholds and carbon budgets.
Your team confirms rules Meridian has already read from the company travel policy, or the travel and expenses policy it sits in.
Name the saving you need. Meridian finds the gentlest route.
Meridian's savings optimiser recommends the travel policy rule changes that reach your target, such as 10% off annual programme cost, while asking least of the people who travel.
- You set the limit on traveller impact; each change carries a disruption score.
- If the target can't be reached, Meridian says so.
How does your travel policy compare with other companies?
Meridian shows you which terms in your travel policy are generous, in line or strict against anonymised peer programmes.
A generous term is paid for on every trip it covers, for as long as it stays. Meridian prices what bringing each one into line would save.
Compare against peers like you, by sector, size or region where enough programmes match. The benchmark never identifies a company.
The carbon a rule cuts, beside what it costs.
Travel policy rules such as rail for short trips and cabin limits on shorter flights cut business travel CO2, and each of them moves cost too, up or down. Measuring and reporting business travel emissions belongs to PredictX's corporate travel sustainability product; Meridian models the decision that comes before, with CO2 beside cost in every scenario.
In Deloitte's 2025 corporate travel study, 48% of US travel managers named sustainability commitments among the top three factors restricting travel, up from 38% in 2024. Companies reporting under the EU's CSRD disclose business travel emissions where they are significant, so a rule you adopt now shows up in your 2027 figures.
How do you show the CFO what a travel policy change will save?
Show the CFO a saving with its workings: every number in Meridian by PredictX traces back to its source. Finance gets the same answer every time a scenario runs on the same data. Any scenario exports as a business case, with the saving, CO2 and traveller impact set out.
Confidence rating on every estimate
So finance knows how far to rely on each estimate.
Held to account afterwards
Meridian tracks predicted savings against actual spend, so when finance asks whether the change saved, the answer has dates on it.
Once the new rules are live, DetectX's AI expense audit shows whether spending follows them.
Keep the tools you trust. Add the view they can't give you.
Meridian adds an independent model of your whole travel programme, compared with how other organisations travel, that you can rerun whenever the question changes.
PredictX, a travel and expense data intelligence company, doesn't sell travel, so Meridian has no reason to favour one agency, channel or supplier. It sees bookings from every agency you connect, plus travel expensed outside them.
Questions about Meridian and your policy
How is our data protected in the benchmark?
Data reaches the benchmark only in anonymised, aggregated form, so no company can be identified in any comparison. Your own programme data stays isolated to your organisation, encrypted in transit and at rest, and every change, simulation and export is logged with who made it and when.
Should we require rail instead of flights on short routes, and what would it save?
Require rail where your route numbers support it: rail can cost more than the flight it replaces while cutting its CO2. In Meridian you can test a rail-first rule and see the change in fares, CO2 and traveller impact first.
Can AI read our travel policy document and turn it into rules?
Meridian by PredictX uses AI to read a travel policy document and turn the rules it can quantify into settings you can test and benchmark. It handles regional versions and other languages, and you can also set any rule by hand.
How do we know the AI read our travel policy correctly?
Your team checks every rule Meridian reads before it counts. Each rule sits beside the sentence it came from. Meridian flags uncertain rules for review, marks anything it could not find and saves nothing until your team has confirmed it.
Which teams will a travel policy change affect most?
Meridian shows which teams a travel policy change lands on before it happens, by business unit, department or cost centre, where your organisation data is connected. You see each unit's cost and share of the saving, so if a business class rule falls mostly on one sales team, you can prepare that conversation early.
What is the difference between modelling a travel policy and checking expenses against it?
Modelling a business travel policy happens before a change and estimates what new rules will do to cost, CO2 and travellers. Checking compliance happens after the spend and tests each expense against the rules in force. Meridian does the first and DetectX the second, and DetectX findings inform your next policy change.
Get more out of PredictX
On price, PredictX sets what you paid against what peers paid; it also answers questions about your programme in plain language and runs whole projects you approve.
Vantage: corporate travel benchmarking
Rules set what travellers book. Vantage shows whether peers paid less for the same thing.
- Same hotel chain and metro, same month
- Same airline, route and cabin, same month
- A negotiation brief for each supplier
Cogent: ask in plain language
Put a policy question to your travel and expense data and get a cited answer.
- Compliance by traveller and cost centre
- Who books above the hotel rate cap
- Every figure traced to its source
Orchestra: your AI agent team
Give it a project, such as ranking your policy leaks, and edit the plan it writes.
- Savings modelled for each policy change
- Nothing runs until you approve the plan
- A cited report in PowerPoint, Word or PDF
See your travel policy as a model, not a document.
Take finance a number you can defend, and your travellers a policy they can live with.