Redevelopers of the former Edison power plant property in South Boston should consider dedicated bus lanes, signal priority for public transit and peak hour parking restrictions to minimize congestion from the 2-million-square-foot project, the Boston Planning and Development Agency said.

Such measures would support a target of nearly 50 percent public transit usage for residents and visitors to the 15-acre property at 776 Summer St.

Boston-based Redgate Capital Partners and Hilco propose 1,344 residential units, 368,000 square feet of office space, 85,000 square feet of retail space and two hotels totaling 344 rooms.

A pedestrian accident that killed a 3-year-old boy at the corner of East First and L streets in July reinforced neighborhood concerns about conditions in the City Point neighborhood.

U.S. Rep. Stephen Lynch announced in November he could not offer his “full support” for the project without changes to the proposal, including the developers providing offstreet parking to South Boston residents and scaling back the building massing.

The developers said in their original proposal they would reconstruct the Summer Street intersection, widen sidewalks and work with the MBTA to create a new supplemental bus route open to the public.

In a request for additional information filed last week, BPDA staff asked developers to provide “complete, substantial and meaningful physical and hardscape improvements” to minimize congestion.

“Given that MassDOT concluded there needs to be four additional trips as a result of this development, the proponent should identify the infrastructure improvements make those additional trips feasible,” BPDA staff wrote in the filing.

Mitigation could include dedicated, transit-only lanes near the property and along existing bus routes, shared lanes, transit signal priority and peak hour parking restrictions, the BPDA recommended. The agency also asked developers to provide locations of Bluebike stations and work with city agencies on shuttle concepts, and provided four suggestions for redesign of East First Street to add bike lanes.

The city’s transportation plan, Go Boston 2030, seeks to increase residents’ public transit usage by one-third. That translates into a 49 percent target for the Edison property, given South Boston’s existing 37 percent transit usage. Additional transit studies should focus on the project’s impact on entire bus routes rather than the stop nearest to the property, the BPDA said.

“We are reviewing the request from the BPDA along with the feedback we received during the comment period. We look forward to continuing to work with the city, elected officials, and the South Boston community throughout this process,” Redgate Principal Ralph Cox said in a statement today.