All notes
Everything here, folded by subject. Most people arrive with one question: whether the numbers mean anything, or whether to fit cameras.
All 50 notes
Folded by subject, with the first open. Everything is in the page rather
than loaded on demand, so it prints and searches whole — though your
browser may not open a fold to show a match, so expand what you want to scan.
What is measured
8 notes
Every score is a weighted sum of event counts divided by exposure. Each of those three parts introduces a distortion, and the route usually dominates all of them.
Open Measurement →
Video
3 notes
The direction the camera points determines the justification, the acceptance and the obligations. Four directions, four separate decisions.
Open Video →
Where the risk is
6 notes
The strongest contributors are schedule, vehicle and exposure. Most of them are decided before anyone gets into a vehicle.
Open Risk →
Running the programme
13 notes
Detection without a response is monitoring. The response is a conversation, and how it is conducted decides whether any of this works.
Open The programme →
Obligations
7 notes
This is among the more intrusive things an employer does, and the paperwork is proportionate to that rather than to the cost of the hardware.
Open Obligations →
Buying
5 notes
Start with three years of your own incident history. It frequently shows the problem is manoeuvring damage and new starters rather than harsh driving.
Open Buying →
The boundary
2 notes
A behaviour system makes things possible that were not. Some of them should stay impossible.
Open The boundary →
Reference
6 notes
The end state as a checklist, the questions this data cannot answer, and the four things that matter if nothing else is done.
Open Reference →