I read the story about New York State spending $5.5 million of our money on infrared sensors to warn inattentive truck drivers approaching low bridges on the Northern State Parkway, Route 106/107 and the Seaford-Oyster Bay Expressway ["Over-height sensors set for area roads," News, May 14].

What a waste of money and resources. For much less than $1 million, I'm sure the state Department of Transportation could hang chains over every parkway entrance in the state. When a driver hears a chain rattle overhead, he would be warned of approaching danger.

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The sensors will trigger new electronic signs warning truck drivers to pull over and contact New York State Police for help. If a driver can't read the sign that says "no trucks," how is a light sensor triggering another sign going to help? Low-tech is the best tech.

Jerry Trapp, East Islip

Editor's note: The writer is a truck driver.