The company behind Ottawa's light-rail transit system is splitting leadership responsibilities between two CEOs amid ongoing issues with the line.

Rideau Transit Group's CEO is stepping down in the coming weeks as calls rise for accountability for the consortium maintaining Ottawa's LRT line.

Issues dogging Ottawa's light-rail transit system are expected to stretch into the fall, according to the latest update from the head of OC Transpo.

Rideau Transit Group says work needed to fix ongoing issues with Ottawa's LRT will last until the end of the year, but staff want problems fixed by September.

"Residents are frustrated and they are angry," Somerset Coun. Catherine McKenney said at a press conference on Tuesday.

"We thought we had fully informed council, but obviously we did not. And for that, I sincerely apologize," John Manconi said.

The request comes after the city confirmed it did give Rideau Transit Group a full payment for September, when many thought the group wasn't getting paid amidst unreliable train service.

The Confederation Line's service on Tuesday marked the first time in two weeks that there wasn't a shortage of trains during either the morning or afternoon rush hours.

The city's manager says he stands by the Stage 2 LRT procurement process, after documents revealed why SNC-Lavalin failed part of the technical evaluation for the Trillium Line extension.

"I know it’s cold comfort to transit riders but we are very sorry for the recent spate of service disruptions," Rideau Transit Group CEO Peter Lauch said.