More than $3.4 billion is being invested in Downtown and the North Shore, according to Pittsburgh's Department of City Planning.

Yesterday, Jeremy M. Smith, the zoning administrator and assistant director of the department, showed the planning board a map locating $3.4 billion in projects that are under construction or in the works.

Some of those developments are public, such as the $42 million Grant Street Transportation Center, which will serve as a Greyhound bus station and a parking garage, and the $435 million North Shore Connector, a pair of Light Rail Transit system tunnels being built under the Allegheny River.

Most of the others are private developments, like the condominiums and retail space at Piatt Place, at the former Lazarus/Macy's department store; the 23-story office tower at Fifth and Liberty avenues; and the new buildings at Point Park University.

Mr. Smith did not include on that map the $450 million casino slated to be built near the Carnegie Science Center. He said that and a few other developments could bring the total investment closer to $4 billion.