More than 2.7 billion trips were taken on U.S. public transportation in the third quarter of 2014, according to a report released by the American Public Transportation Association (APTA).

The ridership numbers for quarter three was a 1.8% increase over the same quarter last year, representing an increase of more than 48 million trips and the highest third quarter ridership since 1974.

Noting that ridership on U.S. public transportation has increased in 12 of the last 15 quarters, APTA President/CEO Michael Melaniphy said, "There are a number of reasons why public transportation ridership is on the rise. First, the investment in public transportation by the federal government has paid off with new rail and bus rapid transit lines or extensions that have opened up in recent years. These new services have not only created greater access for people to use public transit, but have led to economic development that has transformed and revitalized the community. Public transportation is not just moving people, but also positively shaping the communities we live in.

"A second reason for increased ridership is that people are affirmatively responding to the quality of public transportation that is now available. For example, some public transit systems have increased their frequency of service and have modernized their vehicle fleets. Additionally, with the use of apps and real time information at stations, riders can easily find out when the next bus or train will arrive. Technology has made riding public transportation more convenient and easier to use.

"Additionally, the economy is recovering and since nearly 60 percent of public transit trips are taken to travel for work commutes, public transportation ridership has increased in cities where the economy has improved," said Melaniphy.

Cities with higher employment and public transit ridership for the third quarter, included Atlanta; Boston; Champaign-Urbana, Ill.; Columbus, Ohio; Dallas; Denver; Minneapolis; Portland, Ore.; Salt Lake City; San Francisco; and Seattle.

Nationally, heavy rail ridership increased by 4.6%; light rail increased by 3.2%; commuter rail increased by 3.5%; bus ridership decreased nationally by 0.4%; demand response increased 1.3%; and trolleybus ridership declined by 3.3%.

To see the complete APTA ridership report, click here.