27 March 2008

Hazard perception test

The NSW government recently introduced a hazard perception test in their increasingly byzantine car licensing requirements. In this test you are shown a series of videos of various driving situations and asked to touch the screen when you would take a particular action (e.g. break or turn right). The test was introduced because research in Victoria showed that people who passed the test were far less likely to have an accident.

The problem is in NSW you're allowed to sit the test as many times as you like and people who fail don't have to undertake any action. I will admit a persons first attempt at the test probably has predictive value in telling you whether they're more likely to have an accident because very cautious people are far more likely to pass the test the first time. Passing the test on the fifth attempt, however, is unlikely to mean that you've suddenly improved as a driver. It's probably far more likely to mean that you've finally learned how to game the test and give the RTA the answers they're looking for.

The problem is they don't take any action to improve the hazard perception of drivers that fail. If they asked the drivers that failed on the first (or second attempt) to do some kind of course that was shown to improve hazard perception and reduce the risk of an accident then the test would be meaningful but they don't. Instead you can sit the test as many times as you like until you work out when they want you to press the screen, not necessarily when you've become a better driver.

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