Two people were taken to the hospital with minor injuries.

One of the people taken to the hospital was an EMS crew member. The other was an occupant of the other vehicle.

Boston EMS said additional patients being transported at the time of the collision did not suffer injuries from the crash and were taken to the hospital in a separate ambulance.

It is unclear how the crash happened.

Jonathan Saccoccio, a project architect, and Cory Frehsee, a civil engineer and partner, both of Steven & Associates, presented four proposed designs to about 40 town residents in the elementary school’s cafeteria Tuesday. Before the meeting, residents squeezed themselves between engines and trucks during an open house for the current station on Church Street.

The four proposals range in estimated cost from between $1.85 million to about $4 million. Saccoccio said those numbers represent a wide range to encompass all the eventualities, but the true cost won’t be known until the design process proceeds.

The current 40-year-old building lacks adequate space for vehicle maintenance and storage, and could hamper a quicker response to an emergency, Saccoccio said.

The first design would be the most expensive, but Saccoccio said it represents the ideal modern fire station. Located on the same site, it would have four bays that could fit two trucks stacked one behind the other each, plus office and training space around the perimeter.

Station 31 is new altogether and is located at 1061 Collins Hill Road in Lawrenceville, across from the campus of Georgia Gwinnett College.

"The strategic location of the fire station will provide quick access to the Highway 316 corridor and puts fire and emergency medical personnel close to the college and surrounding neighborhoods and businesses," Gwinnett fire Capt. Tommy Rutledge said in a news release.