Downtown Houston’s free circulator buses are rolling a new route and expanding hours, effective Monday, to reflect changes in where people live and play.

Both the Green Line and Orange Line of the GreenLink bus system are affected by the changes, according to a release from the Houston Downtown Management District. Green Line trips will move two blocks north to Capitol Street from Walker.

Bob Eury, executive director of the management district, said the changes were directly related to growth in downtown, notably around Market Square Park where a number of new condominium and apartment buildings have opened.

“In the past few years, we have seen the addition of 16 residential properties, seven hotels, three high-rise office buildings and more,” Eury said in a statement. “One of the many benefits of being downtown is that you can get around without a car.”

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The buses also are sold as a draw for conventions and tourism, as they provide quick access from nearby hotels to the George R. Brown Convention Center

The changes also mean people can use the bus later into the evening via the Orange Line, launched in April 2016 to attract people to stay downtown in the evenings. Buses now operate from 6:30 p.m. to midnight on weekdays, Saturday from 9 a.m. to midnight and Sunday from 9 a.m. to 6 p.m. The buses circulate every 10 minutes.

The Orange Line also will feature two stops at the convention center — at the north and south ends of the building — and encircle Discovery Green.

In the five-a-half years since the compressed natural gas buses began operating, the management district said the service has carried 1.34 million passengers.

The district funds the bus route, which is free, while Metro operates the lines.