It’s over.

After a days-long strike disrupted service for thousands of Fairfax Connector bus riders, the workers’ union announced bus routes returned to normal Monday following an agreement with private contractor Transdev.

ATU International President John Costa said the union and Transdev still have items to negotiate, but called the strike a victory for union workers and their allies.

“Our strike was a victory, sending a loud and clear message to Transdev that we won’t tolerate their unlawful tactics at the bargaining table. We do reserve the right to walk off the job again if the good faith bargaining by Transdev disappears,” Costa said in a news release.

Transdev said officials continue to bargain with union representatives in good faith in hopes of drawing up a contract soon.

Six-hundred Fairfax Connector workers went on strike December 4, protesting what their union called the “unfair labor practices and bad faith negotiations” of Transdev, as well as privatization of public bus service. WMATA has recently begun the practice, while the Connector has been run by private companies for years.

An estimated 30,000 daily riders were affected by canceled or reduced routes. The strike affected roughly 90 routes that serve neighborhoods, feed into Metro stations and circulate around town centers. It meant Transdev was able to operate only 15 routes on Sunday service during the strike — an 84 percent reduction in service, according to the union.

Some in the Amalgamated Transit Union Local 1764 said during the strike that they hoped the added pressure of a second strike in Northern Virginia would help hasten contract negotiations. A second WMATA bus strike, also involving Transdev, has gone on for nearly 50 days.

The contract between Transdev and the union expired on November 30, prompting both parties to meet at the bargaining table on December 4 and 5. Transdev said the union walked away from negotiations after Transdev made several wage proposals. The contractor said it also offered a 60-day extension on the current contract to avoid any work stoppage but the union declined.

According to the union, the National Labor Relations Board is investigating 36 individual allegations that Transdev violated federal labor law in the workplace and in negotiations. It also claims that Transdev circulated materials encouraging ATU members to leave the union and cross picket lines.

Transdev took over Fairfax Connector service in July and has a five-year contract. Transdev is working with the union’s collective bargaining agreement from the old company.

This story originally appeared on WAMU. Jordan Pascale contributed reporting.