SALEM, Ore.-A recent study on the use of studded tires in Oregon found that their use lias declined by half since a previous survey conducted by Oregon's Department of Transportation (ODOT), and use of non-studded traction devices are as effective if not more efficient. The new study of studded tire use in the state indicates drivers have changed their habits, according to the ODOT. It quantifies the current use of studded tires, the pavement damage caused by that use and the cost of repairing the damage.
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