More than a dozen bus routes to and from the Burien and Des Moines areas faced changes starting Sept. 29.

In all, tens of thousands of riders saw changes throughout Metro’s system. Dozens of routes will have different bus stops, travel on different streets or have changed schedules. King County Metro Transit eliminated some low-ridership routes, moving some buses to serve more people and launching some brand new bus service.

“Together, these changes will make Metro’s transit service work better and serve more customers,” Metro Transit General Manager Kevin Desmond said.

Among the changes is a transition to a pay-on-entry system and elimination of the downtown Ride Free Area. Some delays are expected downtown as riders and traffic adapts to the new system. Riders can speed up boarding times and be ready for the pay-on-entry system by getting an ORCA card.

Details on each of these changes are available online and included in new bright orange rider alerts distributed on buses and at transit information centers.

Transit changes in the Burien and Des Moines areas include discontinuing of Routes 133 and 134.

Routing and schedule changes affected Routes 120, 121, 122, 123, 124, 128, 131, 132, 156, 166 and 168.

Information about Metro Transit services is online at metro.kingcounty.gov.