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Galway Cycling Campaign -Feachtas Rothaiochta na Gaillimhe
c/o Galway One World Centre, William St. West, Galway.

 

Open letter to the delegates to the Annual General Meeting of the Irish Medical Organisation 19/4/01- 22/4/01

Re: Proposal that the Irish Medical organisation calls on the Government to introduce legislation to make it mandatory for all cyclists to wear protective headgear

Summary The motion for mandatory protective headgear for cyclists is clearly without merit on either scientific or public health grounds. We call on the sponsors of this motion to withdraw it in the first instance and failing this, we call on the delegates to the annual general meeting to reject it unequivocally.

On behalf of the committee of the Galway Cycling Campaign the above motion has recently come to our attention and we wish to bring the following matters to the attention of the delegates.

Head injuries as a road safety problem Head injuries are a factor in a large proportion of injury and fatality accidents to all road users. In Ireland in 1996 relative ratios for deaths among predominantly unhelmeted road users were as follows: Car User 48%, Pedestrians 23%, Pedal Cyclist 5%. For recorded injury accidents the ratios are: Car users 64%, Pedestrians 13%, Pedal cyclists 6% . It is clear that head injuries to cyclists are at best a tiny fraction of head injuries among recorded traffic accident victims. A study conducted in Sheffield compared injuries among different road user groups and came to the conclusion that helmets for motorists and pedestrians had the potential to save 12.5 times as many lives as cycling helmets . Similar comparisons in Australia have suggested that targeting motorists for compulsory helmets could save 17 times as many lives . The Australian Federal Office of Road Safety has claimed that cycle helmet type devices would if worn by motorists "be as effective as air bags and better than seatbelts". It is suggested that targeting helmets at this road user group has the potential to reduce injury severity by 50% and prevent the deaths of 20% of head injury sufferers .

In this context the exclusive targeting of cyclists for helmet use is clearly illogical. There must therefore be doubts as to whether the actual intent of this motion is in fact to address the issue of head injuries. The suspicion must be that bicycle users have been singled out merely because they are perceived as an easy target without a strong lobby to defend their interests.

This would be an erroneous assumption.

The protective effect of cycle helmets Cycle helmets are intended to prevent soft tissue injury in the event of simple vertical falls at low speeds. As is explicitly expressed in the relevant British Standard, they are neither designed, intended nor expected to provide protection from impacts with moving motor vehicles, the cause of 95% of cyclist fatalities and of the majority of serious injuries. This limited level of protection is only provided if the helmet is properly fitted and worn. Improperly worn or used helmets can and do kill, with reports of deaths of children due to strangulation in Sweden, Finland the US and Canada

The claimed protective effect of cycle helmets In defiance of the logic of materials science and kinetics, incredible claims of injury protection have been propagated, particularly in medical literature from the US. Much of these have been based on research that is demonstrably of poor quality, based on inapplicable assumptions. One notorious case made a claim for a potential reduction of 85% in brain injury . It transpired that this was based on comparing the injury severity of mainly white, helmeted, middle class children cycling under parental supervision in parks with the injury severity of mainly black, unhelmeted, children cycling unsupervised on busy city streets. Comparisons based on adults' fall into other traps. In the days before "helmet-hype", voluntary adult helmet users tended to be experienced types with a more cautious disposition. Such cyclists have been shown to be 2.6 times more likely than unhelmeted cyclists to respect stop signs and seven times more likely to use hand signals . If this behaviour results in a lower accident involvement and injury severity then this is an argument for increased training in, and enforcement of, the existing traffic regulations and not for compulsory helmet wearing.

Helmet laws as a public health problem Cycle helmets were made compulsory in Australia and New Zealand in the early 1990's, the overwhelming effect was to discourage people from cycling. In Australia hospital admissions with head injury dropped by 15-20%, but the level of cycling fell by 35% . In New South Wales there were found to be 43% fewer child cyclists two years after the law . Similar effects are reported in the US where some states have imposed helmet laws for children. Even today, ten years after the law was imposed, cycling levels in western Australia are 5-20% below the original pre-law level . This is notwithstanding a large growth in population during this time. In Australia a recent estimate attributes an 11% reduction in head injuries to helmets . This reduction is lower than the overall decline in cyclist numbers, it has become more dangerous to cycle in Australia.

In New Zealand helmet-wearing rates increased by up to 84% for primary schoolchildren and 62% and 39% for secondary schoolchildren and adults respectively. However sophisticated statistical analysis could show no reduction in serious head injury with increased helmet use . In the US "the largest survey of cycling casualties ever undertaken found that helmets did not prevent injury; indeed, increased use correlated with increased risk of death" . In the UK it has been suggested that the lethality of cycling accidents has actually increased as cycle helmet use has grown .

Cycling and public health Cycling is demonstrably the safest form of transport. The British Medical Association has found that all things considered, the health benefits of regular cycle use significantly outweigh any increased risk of injury . In Denmark it has been found that regular adult cycle commuters show a 40% lower mortality than their non-cycling peers . Ireland has among the highest levels of heart disease and obesity in the EU and is facing a public health crisis as existing government "road safety" policy forces more and more cyclists and pedestrians off the roads. About 13,000 Irish citizens die of heart disease and related conditions annually. In this context any measure that would act to further reduce overall cyclist numbers would be a public health disaster. With this in mind the BMA has rejected compulsory helmet laws on precisely these grounds.

After motorist behaviour, the most important factor governing serious accident expectancy for cyclists is simply the base number of cyclists. The more cyclists there are the lower each individual's risk. If it is required to make cycling safer then it is necessary to encourage more people to cycle. Helmet compulsion has the exact opposite effect both on cyclist numbers and on relative safety.

Conclusion The motion for mandatory protective headgear for cyclists is clearly without merit on either scientific or public health grounds. We call on the sponsors of this motion to withdraw it in the first instance and failing this, we call on the delegates to the annual general meeting to reject it unequivocally.

Shane Foran, Safety Officer Galway Cycling Campaign -Feachtas Rothaiochta na Gaillimhe c/o Galway One World Centre, William St. West, Galway.

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