The CTA said Friday it is working to resolve a glitch that won't allow riders to enter rail stations through some auxiliary entrances after they've tapped their Ventra cards.
CTA spokeswoman Tammy Chase said the "very limited number" of issues with some of the 64 high-barrier gates stems from the CTA running two fare collection methods -- Ventra and its current systems -- simultaneously.
All CTA riders will be able to use Ventra starting Monday. The CTA is phasing out its other fare collection systems by the end of the year.
"Ventra is actively working to mitigate the problem, which includes making software upgrades that have lowered the number of incidents," Chase said in an e-mail.
Going Public has experienced this problem a half-dozen times in nearly three weeks at the Paulina and Belmont Brown Line auxiliary entrances. After tapping the Ventra card, the gates locked up mid-push. The traditional turnstiles at main entrances have not seen this glitch.
Other issues, including balance loading problems and faulty card readers on buses, have come up since the CTA started doling out Ventra cards to university and Chicago Public Schools students last month.
"We continue to monitor the system performance to address minor issues that arise," Chase said.
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