The feature could help traffic congestion at PDX, which has had trouble dealing with the surge of rideshare use at the airport. "Frequently, it is congested along the curb and can be quite challenging for riders to find their drivers," said PDX's Landside Operations Senior Manager Michael Huggins in a press release.

Hunting for your assigned car outside a crowded arrivals terminal while dozens of others do the same is a recipe for disaster. Many airports have either moved Uber and Lyft to designated pickup areas or banned them altogether. But standing in a line for an Uber or Lyft sounds pretty similar to standing in line for an airport taxi, as some on social media pointed out. Given the mess rideshare is causing in most airports, a more efficient method of organizing cars and passengers may be what's needed. At least with a designated line, riders don't have to deal with the anxiety of canceled rides or waiting for drivers to find them.