A day-long construction project will create a traffic nightmare in Temecula this week as crews perform a core-drilling operation on a busy I-15 Freeway off-ramp.

The reopening of an 11-mile stretch of PCH will offer greater access to Malibu and Pacific Palisades and may ease commutes.

LA Metro's D Line subway will close from May 17 to July 24 for upgrades related to the Westside extension project; shuttle bus Line 855 and increased B Line frequency will accommodate riders.

The multibillion-dollar Sepulveda Transit Corridor project would connect the San Fernando Valley with the Westside.

"It's a major artery for L.A., and Malibu has really become an island over the past four months," owner Tim Morris. "Looking ...

The costs to build a monorail or heavy rail through the Sepulveda Pass ranges between about $15 billion and $24 billion.

Highway traffic is inevitable during the holidays. See which roads are the most congested in your city before you head out ...

A CHP officer shot a knife-wielding woman on the 71 Freeway, causing significant traffic jams before the Memorial Day weekend. Northbound lanes were later reopened. The investigation is ongoing.

As usual with holiday weekends, flexibility pays off and the best time to hit the road is in the morning. On Thursday, May 22 ...

In a major post-fire milestone Friday, Pacific Coast Highway reopened to traffic for the first time ... ease commutes for those trying to get to Los Angeles from Ventura County and the west ...