The union representing more than 600 Phoenix bus drivers says a strike now appears probable after ending negotiations with Veolia Transportation Services.
Amalgamated Transit Union Local 1433 President Bob Bean says Veolia plans to implement its "best and final" contract offer that was overwhelmingly rejected in August.
The sides have negotiated for 15 months over wages and sick leave.
The Arizona Republic (http://bit.ly/p1Gnyc) reports the union is asking members to keep showing up for work, but is telling bus drivers to come to a meeting this weekend for possible instructions on a work stoppage.
Veolia Transportation Services has a contract with Phoenix to operate 31 of the 100 Valley Metro bus routes.
A Veolia spokeswoman says the company is willing to keep bargaining and hopes the public isn't impacted with a strike.