Los Angeles Metro will study how to make driving more expensive — in your car or in an Uber

In an attempt to tame traffic, Los Angeles County transportation officials Thursday took their biggest steps yet toward making driving in the region more expensive, approving studies on how to impose more tolls, taxes or other fees on private driving and ride-hailing trips.

The Metropolitan Transportation Authority voted unanimously to move forward with the region’s first comprehensive analysis of congestion pricing. One study will analyze the effects on traffic if drivers were charged a per-mile tax or an entry fee to certain neighborhoods, or if more carpool lanes were converted to toll lanes.