A group of Tufts University graduate students is providing the city with some planning assistance. The four students, from Tufts’ School of Urban and Environmental Policy and Planning, are conducting a field study of the Everett Commercial Triangle. City officials say the 110-acre site, bordered by the Revere Beach Parkway, MBTA commuter rail tracks, and the Chelsea line, is a prime spot for redevelopment. The students, who began their work earlier this month, will prepare a report with recommendations regarding future land use, transportation, and economic development on the property. The project, set for completion in late April, will also involve several community meetings, with the first one expected to be held in early March.