Text-message alert systems may be ineffective in the event of large-scale emergencies, suggests a new report by Patrick G. Traynor, an assistant professor in the School of Computer Science at the Georgia Institute of Technology.
“In particular, because of the architecture of cellular networks, such systems will not be able to deliver a high volume of emergency messages in a short period of time,” says the report, titled “Characterizing the Limitations of Third-Party EAS Over Cellular Text Messaging Services.”
Through a series of experiments, Mr. Traynor concluded that modern cellular networks are incapable of meeting the 10-minute alert goal that has been established by the federal Emergency Alert System charter. Moreover, the high volume of traffic from a third-party alert system has the potential to block 911 calls and communication among emergency personnel, the report states.
Many colleges have set up such alert systems in the wake of the shooting rampage at Virginia Tech last year. —Caitlin Moran



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