(Portland, OR) -- It hasn't snowed since mid-week, but the streets of the Portland Metro area are still dangerous as cold temperatures have kept snow and ice caked on the ground. Crews continue efforts to clear the streets to try to make conditions safer. Many commuters have opted to use TriMet to get them where they need to go, and buses and MAX trains are expected to be filled to capacity with riders today. Those choosing taxicabs, Uber, or Lyft may have to deal with "surge" pricing.