July 2011 – Freestyle Cyclists

7 out of 10 Doctors prefer Helmet Freedom

©iStockphoto.com/SandiMako

The British Medical Journal ran a poll last week asking the question “Should it be compulsory for adult cyclists to wear helmets?“.  Tellingly, the vast majority of those surveyed were against compulsion.  While acknowledging the potential benefits of bike helmets if one was to receive an linear impact to the head, the justifications against compulsion highlighted the following key problems with helmet laws:

Bike helmet laws reduce cycling participation. Helmets are an inconvenience to some cyclists. While this probably doesn’t apply to sports or even fast commuter cyclists who already wear specific cycling attire and plan to shower on arrival, helmets are a significant inconvenience for cycling as a everyday form transport.  And I don’t just mean helmet hair or the fashion factor (although helmet laws effectively rule out cycling as transport whenever hair style is an issue).  Forcing people to wear a helmet makes cycling as transport inconvenient – just look at the failure of bike share programs in Australia.

Singling out cycling for mandatory helmet usage while not requiring it for similarly safe activities also sends a false message that cycling is dangerous.  This ‘dangerising’ of cycling is a significant disincentive, especially to women, children and the elderly.  This is another reason why cycling participation plummeted 30-40% after the introduction of mandatory helmet laws in Australia according to state transport authorities.

Bike helmet laws change cyclists and driver behaviour. Risk compensation and risk homeostasis explain how individual behaviour alters in the face of safety interventions.  Whether it is that those put off cycling by helmet laws are more risk adverse or those who remain take more risks because the are now ‘safer’, helmet laws don’t seem to alter the ratio of head to non-head injuries or injury rates per unit of exposure.  Yet cycling as transport, the form most discouraged by helmet laws, is even safer than the forms of cycling dominant in regions with helmet laws. Dublin’s bike share scheme had over 1.3 million journeys in its first year without a single serious incident.  London’s scheme recently marked 4.5 million journeys 6 million and again, not a single serious injury.  Finally, helmet wearing appears to affect motorist behaviour with drivers giving helmetless riders more passing room than those wearing helmets.

There is no evidence to support the claim that helmet laws increase cyclist safety. While there is plenty of science that explains how helmets can help if you suffer a head impact, there is not a single peer reviewed paper that demonstrates a link between helmet laws and improved cyclist safety.  In Australia, cycling fatalities have decreased since the introduction of helmet laws, but less than the decrease for other non-helmet wearing road users.  Proportions of fatalities caused by head injuries are the same for motorists, pedestrians and cyclists, while helmeted cyclists have the same incidence of head injuries as non helmeted cyclists.  Whether it is ‘safety-in-numbers‘, the fact that helmet wearing provides little additional benefit in most motor vehicle collisions, or risk homeostasis, the fact remains that no study has been able to link helmet laws to improved safety.

Should bike helmets be compulsory for all cyclists? We don’t think so but please share your thoughts.

* The actual statistic was 68% of those BMJ subscribers polled were against mandatory bike helmet laws

Bicycle Helmet Law Map

This map highlights bicycle helmet legislation around the world.

Red areas are countries or states that have an all-age mandatory bicycle helmet law. The pink areas represent countries or states that have a significant exemption (most notably a child-only helmet law or an exemption for footpath & cycle path riding – Northern Territory). Finland is shown in pink as while it has an all-age bicycle helmet law, there is no fine and it is not enforced.

Dots represent jurisdictions (city or county) in the USA where there are either all-age bicycle helmet laws (red) or significant exemptions (pink) – again, the most common one is a child only helmet law.

White areas do not have bicycle helmet laws.

Now, ignoring the fact that this is a Mercator Projection, does Australia look normal to you?

*apologies to our friends in the USA for our hand drawn state outlines.

Ineffective Safety Measure Repealed!

Speed Cameras Used (Less Frequently) In New South Wales

No, not mandatory bicycle helmet laws.

It has been reported that the NSW Government’s Roads Minister, Duncan Gay, has ordered the immediate mothballing of 38 speed cameras following an audit which showed that they have not improved road safety. The audit was commissioned soon after they had won the election earlier this year.

Contrast this with their stance on bicycle helmet legislation.

There is no evidence that bicycle helmet laws have improved cyclist safety in this country and plenty of evidence to the contrary. We have written previously about two recent attempts by State Governments to shore up support for the law with taxpayer funded studies – one from Queensland and the other from NSW.

Why is it that speed cameras, which prevent drivers from speeding in their 2 tonne vehicles and risking the lives of innocent third parties, can be switched off with minimal evidence (an audit) and bicycle helmet laws remain in full force despite no evidence to show their effectiveness?

 

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