The union representing Grand River Transit workers says it has agreed to work through the weekend with Waterloo region in an attempt to reach a deal ahead of its strike deadline.

The deal was reached after a marathon all-night bargaining session earlier this month that narrowly avoided a three-day system shutdown.

The deal averts what would likely have been major commuter chaos in the region. TransLink estimates the SkyTrain system moves about 150,000 passengers every day.

Here's a rundown of what's available for getting around and where negotiations stand.

The three-year agreement was reached in the 11th hour, ahead of a planned three-day work stoppage for the Metro Vancouver transit system.

Workers will vote on the deal from 8 a.m. to 8 p.m. Thursday, with final results expected around 8:45 p.m.

The union head says HSR workers are prepared to strike if necessary to get a fair deal.

The two sides returned to the bargaining table last weekend in a bid to reach an agreement, but nothing came out of those discussions.

A planned three-day, system-wide Metro Vancouver bus shutdown has been averted, after negotiators reached a last-minute deal in the region's transit labour dispute.

Grayson Lee intended to bus students between SFU's Burnaby campus and the nearest SlyTrain station, but now says he can't afford the company's required upfront payment.