How to design and implement a drinking and driving programme pdf ...

Module 3: How to design and implement a drinking and driving programme
Figure 3.5 Funnel method of slowing traffic (
= safety cone)
Enforcement
Safety Corridor
Check Point
Merge sign & police
checkpoint sign
Police car flashing lights
Centerline
the checkpoint, turn left or right before the interception point, or carry out a U turn.
For these reasons it is important to have an “intercept vehicle” strategically placed
prior to the interception point to pick up drivers attempting to evade the checkpoint
or roadblock. Sometimes the drivers attempting to evade the checkpoint are under
the legal limit but traumatised by a guilty conscience.
A team approach to the management of checkpoints is particularly beneficial where
only two or three police officers are operating, for example, at a set of traffic lights
where there is a safe interception point just through the intersection. One officer
may stand at the traffic lights and identify drivers who stop at the red light. They can
be directed by that officer to his colleague(s) undertaking the alcohol intervention
checkpoint. This system operates successfully at toll gates as well. It provides a mix of
visible enforcement and warnings to motorists.
3. Choosing the right method to select vehicles
Methods include random and specific selection:
• Random selection can include directing the following vehicles into the site:
– cars (at random)
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