Ticket dispensers aren't the only things that have flummoxed Canada Line riders in recent weeks.

Have you tried using an elevator?

Depending on the terminal, travellers can take an elevator to levels "S," "C," or "T."

But what the heck do they stand for?

A survey of Canada Line riders at the downtown Vancouver City Centre station on Friday produced a mix of answers.

Some thought "S" stood for "station." Others thought "C" might stand for "centre" or "Pacific Centre."

Wrong. And wrong again.

Turns out "S" is for Street, "C" is for Concourse, and "T" is for Train.

"Oh, for heaven's sake," said Chris Bossley, who was taking the Canada Line for the second time. "I think it's terrible."

Andrew Luchkow said when he took the elevator for the first time, he joked, " 'I guess we'll just choose a letter'" and see where it goes.

Visiting from 70 Mile House in B.C.'s Interior, Eric and Betty Schaap wondered why Canada Line doesn't just spell out the whole word "so you don't have to guess."

And that's exactly what's going to happen.

Steve Crombie, a spokesman for InTransit BC, the company contracted to build and maintain the automated transit system connecting Vancouver and Richmond, told ctvbc.ca on Friday that changes are coming.

Crombie said the company incorporated "S," "C," and "T" buttons in Canada Line elevators to be consistent with buttons used in elevators along the SkyTrain Expo and Millennium lines.

But, "we've realized it can be confusing," he said.

So, the company is in the process of installing decals on the elevator button panels with the complete words Street, Concourse and Train.

Crombie added that InTransit is working on improving signage along the Canada Line route, so that when a train pulls into a station, riders can look out the windows and quickly see what station they're at.

Some riders on Friday said they didn't know what all the fuss was about.

Svetlana Kouznetsova was one of the few riders who knew what the elevator buttons stood for.

"We're intelligent people," she said.

One rider, who didn't want to be identified, said if elevator buttons are the only thing people are complaining about, "they're doing pretty good."

But rider Gemma Forsyth said maybe it would be simpler if Canada Line added a new elevator button altogether: " 'U' for up."