How the TBL Travel Risk Score Works (PPRR)

What this tool is (and isn’t)

What it isPlanning support

A fast pre-trip checker that blends (1) your baseline stability, (2) trip complexity, and (3) safety-net readiness into one score, then generates “Predict • Protect • Rescue • Restore (PPRR)” actions and a checklist.

What it isn’tBoundaries

Not a medical device.
Not diagnosis, treatment, prescribing, or clinical monitoring.
Not “fit-to-fly” or “travel clearance.”
Not real-time crisis support.

Safety boundary If you are urgently unwell, noticing new or rapidly worsening symptoms, or your clinician has advised against travel, pause and seek in-person care rather than relying on this tool.

The scoring model (high level)

The tool produces:

Total risk score (0–100)
A risk level label (shown on the results page)
Three sub-scores:
- Health baseline (50%)
- Trip complexity (30%)
- Safety-net readiness (20%)

Why these weights: baseline stability tends to dominate flare risk. Complexity can amplify triggers. Safety-net readiness is “damage control” when plans break.

How the math works (simple and transparent)

Each question is scored from 0 to 3:
0 = lowest risk / most stable, 3 = highest risk / least stable.

For each domain, the tool calculates an average (0–3), converts it to a percentage (0–100), then applies the domain weight:

Domain % = (domain average ÷ 3) × 100
Total score = (Health % × 0.50) + (Trip % × 0.30) + (Readiness % × 0.20)

Important: the score is deterministic (rule-based). If you change inputs, the score changes in a predictable way.

What inputs go into the score

Trip basics (complexity drivers)

Travel mode
Total travel duration
Layovers/changes
Time-zone shift
Destination climate vs your triggers

Health & support (baseline and stability)

Pain control
Flare frequency
Mobility
Comorbidities
Medication/treatment complexity
Psychological strain
Sleep stability
Last trip outcome
Self-management skills

Safety-net readiness (buffers + backup)

Docs: scripts/letters/IDs
Insurance & emergency plan
Assistance booked (wheelchair/priority)
Accommodation accessibility
Contingency budget
Support network & comms

How to interpret your result (what to do next)

Use the Level label shown on your result (low, mild, moderate, high, very high). Then apply this decision logic:

LOW Score band: 0–24

What it usually means: Generally travel-ready with routine buffers.

What to do next: Proceed, but harden the trip. Do Predict + Protect first, and build a simple Rescue plan.

MILD Score band: 25–39

What it usually means: Some friction expected, usually manageable with planning.

What to do next: Add 1–2 buffers (arrival time, rest blocks, fewer timed commitments), then recheck.

MODERATE Score band: 40–54

What it usually means: Meaningful flare risk unless you reduce load or strengthen buffers.

What to do next: Proceed only if you can make a “Red-to-Amber” change, then recheck.

HIGH Score band: 55–74

What it usually means: High crash likelihood without changes.

What to do next: Do not lock in non-refundable costs until you reduce complexity and strengthen safety net. If unsure medically, discuss with a clinician before booking.

VERY HIGH Score band: 75–100

What it usually means: “Pause and redesign” signal for the current plan.

What to do next: Postpone or redesign to a minimum viable trip (shorter, fewer changes, safer environment, stronger supports). Discuss with a clinician before booking.

Level	Score band	What it usually means	What to do next
LOW	0–24	Generally travel-ready with routine buffers.	Proceed, but harden the trip. Do Predict + Protect first, and build a simple Rescue plan.
MILD	25–39	Some friction expected, usually manageable with planning.	Add 1–2 buffers (arrival time, rest blocks, fewer timed commitments), then recheck.
MODERATE	40–54	Meaningful flare risk unless you reduce load or strengthen buffers.	Proceed only if you can make a “Red-to-Amber” change, then recheck.
HIGH	55–74	High crash likelihood without changes.	Do not lock in non-refundable costs until you reduce complexity and strengthen safety net. If unsure medically, discuss with a clinician before booking.
VERY HIGH	75–100	“Pause and redesign” signal for the current plan.	Postpone or redesign to a minimum viable trip (shorter, fewer changes, safer environment, stronger supports). Discuss with a clinician before booking.

When to stop and talk to a clinician Talk to a clinician before booking or travel if your level is High/Very High, if you have new/worsening symptoms, unstable medical issues, recent significant treatment changes, or if a prior trip ended in cancellation/urgent care.

This tool does not replace medical assessment or airline/insurance fitness rules.

“Top drivers” (why your score is high)

The tool lists the factors that most pushed your score up. Typical patterns:

Baseline instability (flares most days, poor sleep, recent bad trip outcome)
High complexity (ultra duration, tight/overnight changes, major time-zone shift)
Weak buffers (unclear insurance/emergency plan, accessibility unknown, limited support)

Your job is not to fix everything. Your job is to change the top 1–3 drivers that give the biggest risk reduction per unit effort.

What “PPRR” means (the action engine)

Predict: identify what usually triggers you on this trip and where the first crack appears.
Protect: add buffers, reduce complexity, and set ceilings (limits) before the trip borrows from tomorrow.
Rescue: pre-decide what you do if symptoms spike (switch rules + minimal plan).
Restore: a post-trip re-entry plan so recovery is protected.

This is why TBL focuses on pre-decisions and default pivots instead of willpower during a flare.

Data + privacy (default is on-device)

By default, tool inputs and outputs stay in your browser (localStorage). TBL does not automatically receive or sync what you enter. You can clear tool data anytime using in-tool reset/clear controls or by clearing site storage in your browser.

We use limited server-side processing only where needed to run the business (e.g., payments, support) and basic aggregated usage/error logs. We do not sell personal information, and we do not use your tool inputs to train general-purpose AI models.

AI-assisted features (accuracy + limits)

Some outputs may be generated with AI assistance. AI outputs are probabilistic and can be incorrect or incomplete. Use them as prompts, not directives—especially when decisions affect health, safety, or finances.

Core scoring is rule-based and does not “guess” your health status.

Evidence status + updates (honest + defensible)

Current status: a structured, rule-based scoring model designed for practical travel decisions under constraint.

How we improve it: we periodically refine question wording, action templates, and scoring rules to reduce false reassurance and reduce preventable “trip crashes.”

Model versionv1.0

Last updated12 Feb 2026

FAQ

Does a higher score mean I cannot travel?

No. A higher score means your current plan has higher expected friction and flare risk unless you reduce trip load or strengthen buffers.

Can this tool clear me to fly or travel?

No. This tool is not a fit-to-fly or travel clearance assessment. It is educational planning support only.

Why do “safety-net” items affect the score?

Because when plans break, buffers reduce harm (delays, missed medication timing, inaccessible rooms, inability to rest, or lack of an emergency plan).

Can I lower my score without changing my health?

Often yes—reduce trip complexity and strengthen readiness (fewer connections, better access planning, assistance booking, clearer emergency plan). Then rerun the tool.

Does TBL see my answers?

By default, no. Inputs stay on your device (localStorage) unless you intentionally share them.

Next step

Use the tool to get your level, change the top 1–3 drivers, and rerun. That is the intended workflow.

Run the Travel Risk & Readiness Tool Get the Trip Fit Check & Starter Kit