More Americans than ever before are expected to travel this Independence Day holiday, with record numbers set to travel by road.

AAA predicts that approximately 49 million people will travel over the holiday; 41.4 million by automobile, 4.3 percent more than last year.

“As Independence Day approaches, it’s time for the much-loved family road trip and this year will be one for the record books, with more Americans than ever planning vacations,” said Paula Twidale, Vice President, AAA Travel. “This holiday builds on the strong travel demand seen for Memorial Day, and with schools now out of session across the country, families coast to coast are eager to travel.”

INRIX, a global mobility analytics company, predicts drivers could face delays as much as four times a normal commute, with Wednesday, July 3 expected to be the worst day on the roads.

“With record-level travelers hitting the road this holiday, drivers must be prepared for delays around our major metros,” said Trevor Reed, Transportation Analyst at INRIX. “Although travel times are expected to nominally increase throughout the week, hands down, Wednesday afternoon will be the worst time to be on the road.”