Selectmen are on board with a Massachusetts Department of Transportation plan that makes a commuter stop in Wareham a possibility. However, Selectman Alan Slavin cautioned that the $1 billion project is complicated and reaching a consensus among stakeholders is a tricky proposition.

Slavin, who is known as the board’s transportation guru, lamented the fact that the project splintered from a singular vision to one with several options. Frequent changes are making the project difficult to track, let alone settle on one option to support, he said.

“I have no idea what’s going to happen, and I’m closer to this than anybody,” said Slavin. “Every time you turn around, they change something.”

Slavin added that the plan the board supports doesn’t mean train service is coming to town, even if it’s adopted.

“There’s nothing in there that guarantees Wareham gets a train at all,” he said.

Despite those misgivings, board members on Tuesday unanimously supported the Department of Transportation’s “alternative number two plan.” If adopted, that plan makes Wareham tracks, which are already well-maintained and used seasonally by the CapeFlyer, an attractive option for extending service to Hyannis.

Now, the state is assessing the benefits of extending the commuter rail shuttle south into Buzzards Bay. The extension would use the current CapeFlyer tracks, but would run full-time, bringing daily Massachusetts Bay Transportation Authority service to Wareham, and Buzzards Bay before terminating in Hyannis.

The assessment comes as part of state’s attempt to bring commuter rail accessibility into New Bedford. State officials are still moving forward with plans to construct a rail line to Stoughton, ending in Fall River.

However, the Stoughton line requires several new stations to be built in Raynham, Easton, Taunton, Freetown New Bedford among others. The line also extends through the Hockomock Swamp, which has raised concerns with environmentalists.

Selectmen Chair Peter Teitelbaum echoed those concerns on Tuesday, saying that, from an environmental standpoint, building new isn’t the best option. It’s better to use existing infrastructure, he said.

The board-backed option proposes using the already-in-use Middleboro/Lakeville line to connect to New Bedford and Fall River.

The proposal offers two options for the Middleboro/Lakeville station. The first is to construct a new Middleboro station at Pilgrim Junction, which would connect to the Middleboro freight line heading into Cotley Junction in Taunton, and then along the freight lines into New Bedford and Fall River.

The second option is to use the current Lakeville station as a commuter shuttle, bringing passengers to Bridgewater. There they could make a cross-platform transfer to a new line, which would extend south to New Bedford and Fall River.

While the second option doesn’t explicitly make use of Wareham tracks, having commuter service running through Lakeville might make it more attractive for officials to start running daily trains to Cape Cod. Local leaders are hopeful that making a Wareham stop would then be an easy sell to the state.

With the project’s future unclear, Slavin said plans could change. Teitelbaum noted if that’s the case, the board could always withdraw its support, or throw it behind a new option in the future.