The rise of this city in Harford County and its decline owed much to U.S. 40 and the car-centric culture of 20th century America.
From World War II to the 1960s, motels and gas stations sprouted along the main road from Baltimore to Philadelphia to accommodate road-weary travelers. Diners served up coffee and gossip to neighbors and road-trippers alike on what was also the main local drag.
But when Interstate 95 opened, running parallel to U.S. 40 just a few miles to the west, the flow of out-of-town cars slowed to a trickle.
Today, many of the motels that remain offer cut-rate rooms or are boarded up altogether. Eateries such as the iconic New Ideal Diner in Aberdeen have shut down.
Now the city is pinning its hopes for the future on an older mode of transportation.
"Everything old becomes new," said former Mayor Ruth Elliott, now a city councilwoman. "Like so many things, you have these tremendous plans. It's going to take a lot of money, some people with vision, especially business people. If it could happen, it would be nice."
The hitch: Officials are waiting for a developer to come forward with a formal plan. Commercial activity at the corner of U.S. 40 and Bel Air Avenue currently consists of a gas station, a cemetery headstone maker and a few other small businesses.
Three years ago, the state gave the area a special designation that makes it eligible for funding assistance to spur interest.
Some hope it's only a matter of time.
The city wants a mix of residential and commercial development more visible from U.S. 40, with wide sidewalks and parking for bicycles.
Where most buildings in the area are currently squat, developers could build structures as high as eight stories close to the station.
Stephen Cockey, 58, of Bel Air, stood inside the waiting area at Aberdeen Station and said the building itself could use a face lift.
"It certainly needs some upgrading as far as appearance goes," Cockey said. "It looks pretty shabby — not just the building, but the whole surrounding area."
Daphane Braxton, 53, waiting for a train to Washington, spoke of the revitalization of Havre De Grace, where she lives. She said Aberdeen's city center should look more modern.
"It's a quaint little place," Braxton said.
The federal government threaded U.S. 40 through Harford County around 1930, and for decades it was the primary highway between Baltimore and Philadelphia.
In the 1960s, I-95 opened in northeastern Maryland as the John F. Kennedy Memorial Highway. Aberdeen went from a city that travelers once passed through to one they now pass by.
"Everything just started to wither away — the motels, the travelers," said 66-year-old Jim O'Neill, who has lived here since the 1950s. "People didn't drive as fast and as long distances in the '40s and '50s."