| Why
speed cameras cannot reduce the road toll in Australia.
Speed
cameras are a great road safety invention - when
used for their intended purpose. They were designed
to be situated at accident black spots and clearly
signposted in the lead up so that motorists were
alerted to a dangerous section on the road ahead.
Governments
however soon saw the cash register potential of
speed cameras. They also saw that by increasing
the number used they would be seen to being promoting
safety while raking in additional millions of dollars.
Greed
is a terrible thing and soon stepped in even further.
Legislation was soon passed to allow speed cameras
to be situated at up to 5 kilometres away from the
accident black spot. Legislation was also passed
to outlaw the use of speed camera detectors which
would alert motorists to the upcoming danger zone.
These
actions totally negate the initial purpose for
which speed cameras were intended.
It
did not end there and addicted state governments
additionally realised that they could increase income
dramatically by lowering speed limits below the
natural rate of traffic flow. Traffic engineers
around the world call this natural rate of flow
the 85th percentile. It is the speed at which 85%
of vehicles travel on a particular section of road.
Speed limits used to be set at these speeds, most
are now set below this natural rate of flow.
The
closest analogy is to compare a road to a river.
A river flows at a natural rate, restrict the flow
and there are consequences. What lower speed limits
do is restrict the traffic flow which adds to congestion
while distracting motorists attention from getting
safely to their destination to watching out for
speed cameras.
We
now have lower speed limits policed by revenue generating
speed cameras which are seldom situated at the actual
danger zones. Motorists no longer see speed cameras
as safety devices.
Additionally,
most motorists caught by speed cameras are not even
aware that they exceeded the speed limit until weeks
after the event when they receive a ticket in the
mail. This is no deterrent to "speeding"
and most offenders don't even know where they were
trapped or where the so called black spot was supposed
to be.
Clearly,
other than the 2% factor, the main reasons why speed
cameras cannot save lives in Australia, is that
they are used for purposes other than safety. They
are no longer seen as safety devices by the motoring
public and have lost any safety benefits once offered.
They
have no credibility and greedy governments have
cried wolf too often. |