Why does the Golden Gate Bridge use reversible lanes?
The Golden Gate Bridge began using reversible lanes on October 29, 1963. Reversible lanes help to aid in the flow of traffic during the peak commute hours and during weekend tourist season.
The Bridge has a total of six lanes. At any given time the number of lanes northbound or southbound can be adjusted and reversed. Bright yellow lane markers are manually placed in along the Bridge roadway to clearly identify the outbound and inbound lanes. You can Read more about current lane configurations online.