Tens of thousands of cyclists and pedestrians are expected to converge on a 6.3-mile stretch of Wilshire Boulevard on Sunday for the city's ninth CicLAvia.
The route from One Wilshire in downtown Los Angeles to the Miracle Mile area west of Hauser Boulevard will be closed to motorists for the free event from 9 a.m. to 4 p.m.
Robert Gard, a spokesman for the event, said that the route may get congested near downtown and along Museum Row, where pedestrians will congregate.
Throughout the route, planners have arranged food trucks and street performers.
At the Wiltern Theatre, at Wilshire Boulevard and Western Avenue, docents will be stationed to provide history lessons on the historic Art Deco landmark.
Outside the Wilshire Royale building, the Heart of Los Angeles -- a group dedicated to youth arts programs -- will host jazz and rock bands and provide chalk for the public to make sidewalk art.
Gard said the weather is expected to be warm, and he suggested that participants bring water and sunscreen.
Ciclovias, as they are known in Spanish, started in Bogota, Colombia, more than 30 years ago and have spread throughout the United States and Latin America.