The First Quarter

The first three months decide whether this is understood as a safety programme or as surveillance, and the decision is effectively irreversible.

Watch weekly

Clips generated per vehicle, which tells you whether the thresholds hold.

False trigger rate from the review, which should be falling as thresholds are tuned.

Time from event to coaching conversation, which is the number that matters most.

Disputes raised, which should be more than zero — none means nobody believes the route exists.

Verify before anyone is ranked

Event rate by vehicle within type, checked for outliers.

The vehicle-swap test on any ambiguous case.

A sample of speeding events against real limits.

Publishing a score before these are done produces a driver who looks reckless because of a loose device, and that story is told in the depot for years.

Report something structural first

A junction, a round, a vehicle type, a rota pattern.

Fix one of them visibly and say the data found it.

This is the single most effective thing available in the first quarter, and it costs nothing beyond doing what the data said.

Be generous with disputes

Uphold readily in the first months.

Volume will be high because thresholds are still settling, and querying each one teaches people the route is decorative.

Tighten later, once the false trigger rate has fallen and an ordinary dispute is distinguishable from a pattern.

Close the loop every time

Tell drivers the outcome of every review, including dismissals.

Which is laborious at first and becomes the habit the programme runs on.

A driver who hears only about problems will experience the system as punitive and will be right.

The review at week twelve

False trigger rate, time to coaching, disputes and outcomes.

Structural findings acted on.

And one honest question, asked of drivers directly: has anything you were told at the briefing turned out not to be true? Act on any yes immediately, because that is the answer the whole programme rests on.

Ask whether anything was untrue

The question to put to drivers at week twelve.

Has anything you were told at the briefing turned out not to be the case?

Ask it directly and act on any yes the same week.

Because the briefing is the whole foundation, and a single discovered inaccuracy is worth more damage than every correct statement was worth.

Follow the difficult record

Use the connected-work reference to frame one representative case. The useful evidence is the record created when a value is challenged, corrected, approved and exported.

Independent reference

For a thematic point of reference, see the Insurance Institute for Highway Safety. Use the current material as an outside check before turning the principle into a system rule.