Four traffic headaches you should avoid this Memorial Day weekend

Oh, the places you’ll go -- and the places you shouldn’t go-- this Memorial Day weekend. Record numbers of Americans on the road mean that trouble traffic spots will be even more troublesome.

The California Highway Patrol defines the holiday weekend as lasting from 6:01 p.m. on Friday to 11:59 p.m. on Monday. Here are five places you should avoid during peak hours, unless you look forward to bonding with family while stuck on the freeway.

Yosemite National Park: Don’t come to the park between 10 a.m. and 2 p.m., the peak hours for traffic, a park statement says. Visitors inside Yosemite Valley are advised to park their vehicles and take the free shuttles, or bike or hike to get from point to point.

Also, know that reserved campsites in Yosemite are sold out; the few available on a first-come, first-served basis are expected to be filled by Friday afternoon. The park suggests looking for lodging or camping in the gateway communities at Yosemite’s south entrance.

Interstate 15: Caltrans is expecting an increase of as many as 1,500 vehicles per hour Friday on northbound Interstate 15 between Rancho Cucamonga and Hesperia. The worst time for delays near the Cajon Pass is expected to be Friday afternoon for northbound travelers and Sunday and Monday afternoons for southbound drivers.

Interstate 10: Caltrans says travelers heading east from California to Arizona can expect delays on Interstate 10 between Indio and Beaumont. Traffic is expected to be heaviest on westbound Interstate 10 on Sunday and Monday.

U.S. Highway 101: The state transportation agency warns looky-loo drivers not to stop along Highway 101 to see the oil spill off the coast of Santa Barbara County. The shoulder of the roadway near Refugio State Beach, which is shut because of the spill that started Tuesday, is closed.