Photomap

This sign stands by the main entrance of the Nederlandse Aardolie Maatschappij (Dutch Oil Company - a big chunk of Shell) building in Assen.

The sign shows the injury rate of the business.

The top number is the number of days which have passed since the last injury in the company which caused someone to have to stay off work. i.e. 7 days.

The second number is the number of accidents in the company this year which have caused someone to be off work. i.e. 12 such accidents.

Oil exploration is quite a risky business. This was taken in November, so represents most of a year's worth of accidents.

The third number is just the number of free spaces in the carpark. It's perhaps worth noting that there are also excellent cycle paths to this site.

I assume this sign exists to try to encourage a safety culture. I think it might make me think twice about bothering if it was the first thing I saw on arriving for an interview...