By Anne O'Connor

DEVENS -- Once a week or so, Peter Lowitt leaves his motor vehicle at home in West Concord. Instead of driving, he walks to the train station, takes the train to Ayer and hops on a shuttle to his Devens office.

It is a commute almost 20 years in the making.

The last leg of his morning journey uses the newest service.

The Devens Regional Shuttle Service got underway in April. Between 90 and 100 people use it over the week, said Lowitt, the director of the Devens Enterprise Commission.

The shuttle service, which began in April, is run by the Montachusett Regional Transit Authority, MART. It brings workers from Fitchburg and Leominster to their 12-hour-a-day jobs in Devens. It also allows reverse commuters to take the train by picking passengers up in Ayer or Shirley.

Ayer and Shirley residents can use the service for shopping and medical appointments during the day.

Businesses in Devens fund about one-third of the cost, a tax-deductible expense. They need workers. Workers in Fitchburg and Leominster need jobs.

Overall unemployment levels are down, but there are pockets of disparity, said Thatcher Kezer, senior vice president of Devens Mass Development.

"Fitchburg and Leominster have a population looking for these types of jobs," Kezer said. "There is no public transportation to get them there.