To insure ALL studded tire users pay for damaging Portland’s roads, Were recommending that a Snow Park type permitting system be used. Outlying residents (Vancouver included) would avoid paying a sales tax, yet they use studded tires too. I-205 in Vancouver is totally stud tire damaged. A concrete road should last 25-35 years, The ruts now have to be filled with asphalt which only lasts 12 years, with studded tire use, only 6 years. This is a huge non-point source of C02. It’s important to lower our impact on the environment and this is a good place to start. Only 10% of drivers use studded tires. Tire technology has rendered studded tires pointless. It’s ridiculous the legislators have allowed Les Schwab to dictate how our roads are used.