ATLANTA (AP) _ Four men protesting plans for a parkway leading to Jimmy Carter's presidential library were arrested Tuesday when they refused to leave a trench at the construction site, police said.

The $22 million four-lane parkway is being built to connect the library and policy center near Emory University with downtown Atlanta. Neighborhood groups have fought to halt the project, saying it would disrupt historic neighborhoods and parks in northeast Atlanta.

The four protesters were charged with unlawful assembly and interfering with a lawful occupation, said Atlanta police Maj. Lovett Goss. They were taken to the city jail about 12:45 p.m. and were being held on $1,000 bond.

The four were identified as John Michaels, 38; Danny Feig, 33; Mike Ratell, 29, and Guyton Thompson 31, all of Atlanta. The men said they were members of a group called Roadbusters.

Sharman Colosetti, who identified herself as a spokeswoman for Roadbusters, said the group is not associated with CAUTION, a citizens' group that has filed lawsuits attempting to halt the project.

''We do the direct action; they do the legal work,'' Ms. Colosetti said. ''We're training people in civil disobedience...''

In their latest suit, the parkway opponents charge that the Atlanta City Council, the state Department of Transportation and other government agencies acted illegally in transferring city land to the state for the road project.

A hearing is scheduled Thursday on the suit, which asks a Superior Court judge for a temporary restraining order blocking the construction.

An earlier lawsuit was rejected by a federal judge, but parkway opponents have appealed that case to the 11th U.S. Circuit Court of Appeals.