PHILADELPHIA (CBS) — For the second weekend in a row, travelers across the Philadelphia region were dealing with a slick commute after snow and rain fell on area roads overnight.

The combination of treated roads and caution seemed to have spared most drivers a lot of problems on Saturday morning. There were numerous accidents throughout the region, but none were reported to be serious.

PennDOT and other crews spent the last two nights salting the roads in an effort to avoid a repeat of Sunday when the wet weather caused hundreds of accidents and forced dozens of closures along major highways and bridges.

“They’ve been out through the duration of this storm,” said spokesman Brad Rudolph. “We have 339 trucks in the five-county region and they’ll be out for the duration.”

Rudolph said road issues were a little bit worse as drivers went west along Route 422 and north on Route 309. Speeds were reduced in the Reading and Bethlehem areas, but closer to the city, conditions were good.

Nonetheless, drivers were being urged to leave extra space when following other cars and not to try passing plow or salt trucks.

There were also speed restrictions in place along the bridges between Pennsylvania and New Jersey.

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The FAA put a ground delay in effect at Philadelphia International Airport, meaning some arriving flights were delayed for up to 35 minutes — and that was expected to cause a ripple effect throughout the day on departing flights. Travelers were urged to check with their individual airline for any delays or visit the airport’s website, or call 1-800-PHL-GATE.

SEPTA was reporting detours along several bus routes, but all buses were operating on a normal schedule as of late morning.

There was also a warning for people commuting on foot or walking to bus stops. Sidewalks and secondary roads were also very slippery.