[ozone]

I'm not sure freeway exposure is a real concern for Old Sacramento's merchants. There's no gas stations, motels, auto dealers, ect etc etc.. Why would the merchants want the exposure of a freeway that completely ruins the whole atmosphere of the place? And I'm not sure you are correct that noise barriers are only for residential areas. I know that noise barriers have been used for state parks as well and Old Sacramento is a state park. Besides now that new condos are going in Old Sacramento wouldn't it be considered a residential area?