Workplace transport safety An employers' guide - ARRI Lighting Rental

Health and Safety
Executive
352 The best way to do this is to use fixed features that mean drivers can’t move
too quickly. Examples include speed humps, narrowed routes (by bollards, raised
kerbs, chicanes, built-in routeside features and so on – these are sometimes known
as ‘pinch points’), and ‘rumble’ devices (such as rumble strips, rumble areas or
jiggle bars).
353 Traffic-calming measures should be signed and clearly visible. Many features
can be lit or made reflective.
354 It is important to be careful when you are deciding where to use traffic-calming
features, because they can sometimes actually increase risks (for example, by
affecting the stability of vehicles or less secure loads).
355 Speed humps are a proven way to limit the speed that vehicles move around a
traffic system. Speed humps normally slow vehicles to an average of around 15 miles
per hour.
356 Warning signs should be clearly visible, and should be far enough away from
the hump to allow drivers to change their speed safely. The humps themselves
should also be clearly marked. See Figure 12 for an example of the type of sign you
should use.
Humps for
1
2 mile
Note: Distance shown for is illustration only
Note: Distance shown is for illustration only
Figure 12 This sign should be used to show
the distance over which speed humps extend
357 For similar reasons, individual humps should not be used on their own. Humps
should be repeated at intervals along a route and should not be used within 15 m
of a junction or bend.
358 Speed humps are only suitable for routes where vehicles can go over the
humps safely.
359 Some vehicles may not be designed to be able to go over speed humps safely
(for example, most industrial lift trucks or some caravans). Also, some emergency
vehicles need to avoid speed humps (for example, ambulances carrying patients
with spinal injuries). However, it is often possible to include some type of bypass to
allow these vehicles to avoid going over the hump.
360 Sometimes speed cushions can be used instead of speed humps. Speed
cushions work in a similar way as speed humps, but do not stretch across the
whole road. Instead, they leave some space clear for certain types of vehicle to
drive through or straddle the raised areas (for example, cyclists or larger emergency
vehicles).
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