Do Suicide Barriers Prevent Deaths?

The Golden Gate Bridge (GGB) is a well-known “suicide magnet” and the site of approximately 30 suicides per year. Recently, a suicide barrier was approved to prevent further suicides.  To estimate the cost-effectiveness of the proposed suicide barrier, the authors of an article recently published in the journal Crisis compared the proposed costs of the barrier over a 20-year period ($51.6 million) to estimated reductions in mortality.  They reviewed San Francisco and Golden Gate Bridge suicides over a 70-year period (1936–2006).  Their research assumed that all suicides prevented by the barrier would attempt suicide with alternative methods and estimated the mortality reduction based on the difference in lethality between GGB jumps and other suicide methods. Cost/benefit analyses utilized estimates of value of statistical life (VSL) used in highway projects. Results showed that GGB suicides occur at a rate of approximately 30 per year, with a lethality of 98%. Jumping from other structures has an average lethality of 47%. Assuming that unsuccessful suicides eventually committed suicide at previously reported (12–13%) rates, approximately 286 lives would be saved over a 20-year period at an average cost/life of approximately $180,419 i.e., roughly 6% of US Department of Transportation minimal VSL estimate ($3.2 million).  In conclusion, cost-benefit analysis suggests that a suicide barrier on the GGB would result in a highly cost-effective reduction in suicide mortality in the San Francisco Bay Area.

For the abstract

 

Related Stories

  • When Suicide is Listed in Obituaries
  • Can Video Games Cause Violence?
  • New Study Shows Alzheimer-Related Deaths on the Rise

 
disclaimer

The information provided on the PsyWeb.com is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational and educational purposes. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Neither the owners or employees of PsyWeb.com nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.

PsyWeb Poll

Are you currently taking or have you ever been prescribed anti-depressants?
Yes
50%
No
50%
Total votes: 3979