A couple of software glitches have knocked out the display of next-train arrival times on the digital ad screens installed on a trial basis at six CTA rail stations.
The CTA said that in evaluating the
pilot project, they noticed that once the arrival time estimate was made, there could be a delay of up to a few minutes before the information gets displayed on
the screen. "For example, a train may be scheduled to arrive in three minutes,
but due to a delay in posting the information, the three minute arrival time may
not be displayed to customers until the train is less than a minute from the
station," said a CTA spokesperson.
are working with Titan (our advertising vendor) on a solution, but in the
interim, in order not to be giving customers incorrect information, CTA is
temporarily not posting next train arrival information," she added.
Delays are occurring in two places, according to the CTA. First, there's a lag
time between when the information is transmitted and when it gets through the
servers. Another delay is because the arrival times display is in a rotation
with advertisements and the number and length of advertisements can impact how
frequently the arrival time information is displayed.
The 52-inch ad display screens are installed at the 47th Street, Sox-35th
and Addison Red Line stations; Davis Purple Line station; Roosevelt
Orange/Green line station; and the 18th Street Pink Line station. But for now you'll just see ads for mayonnaise, among others.
And now we know why they call these "pilot projects" -- to work out kinks like these before they are ready for prime time expansion.