LINCOLN, Maine — Stephen Laurendeau used to go food shopping on a bicycle, pedaling a mile with his grocery bags hanging precariously from the handlebars of his 21-speed.

“Usually I could get two bags at a time,” Laurendeau said recently, sounding a bit proud of his balancing skills.

Over the last few weeks, Laurendeau has changed his routine. The 69-year-old man now rides a bus to and from Hannaford Supermarket on West Broadway. Offered by Golden Key Senior Center of Lincoln, the new bus service charges $4 per round-trip to take people through downtown, said Jon Whitney, who co-founded the center with his brother, Jim Whitney, in November 2011.

“We’d been working on it for about a year, getting it planned and acquiring the bus,” Jim Whitney said. “Our goal is to be able to service everybody,” with greater frequency.

“We see a need from the members of our center here,” he added. “There are a few [taxi] services available in town but nothing quite geared for seniors or with the appropriate access.”

The service targets older residents and meeting their travel needs, though anyone can ride. The bus runs about every hour from 9 a.m. to 5 p.m. Monday through Friday. Its route starts on East Broadway just behind the center at 51 West Main St. The bus stops at Hannaford, Wal-Mart, Rite-Aid, Health Access Network, Penobscot Valley Hospital and several housing projects around town where older residents live, Whitney said.

The Whitneys, who are the primary drivers so far, work with area health care facilities to coordinate medical appointments — a big consideration for older residents — but some just come for the ride, Jim Whitney said.

“Isolation is a big factor with some of our senior population,” he said. “We are alleviating that to some degree with the bus. If they need to just run to the store for a gallon of milk, they can do it without the hassle of [using] their own vehicle.”

The bus has had more than passengers so far, Jon Whitney said last week. The brothers hope word of mouth will draw more seniors out of their homes, onto the bus and into town.

Laurendeau, a floor-covering installer, thinks the bus service will find its niche.

“It’s new, but I can tell you that it is something everybody wants. If they get the routes down, enough exposure, it will take off,” Laurendeau said.