Rubber to quiet the 22

Is the 22 Freeway extra quiet? Officials plan to install a special type of asphalt on the roadway designed to reduce noise:

The state Department of Transportation is expected by the end of this week to approve design plans for rubberized asphalt installation on the 22. Plans to install the noise-blocking asphalt on a mile of the westbound direction – between Magnolia and Euclid streets – were contingent on CalTrans approval, which caused a delay in the construction process. CalTrans, which has standards for installing rubberized asphalt on older freeways, had to determine how to lay the asphalt on the new 22 without breaking up the concrete, said Joel Zlotnik, an Orange County Transportation Authority spokesman.