Westlake-based TravelCenters of America Inc. (Nasdaq: TA) and IHOP Restaurants plan a significant expansion of their existing partnership.

TravelCenters, a truck-stop operator, and IHOP, a subsidiary of Dine Brands Global Inc. (NYSE: DIN), on Wednesday morning, Oct. 30, announced that they have entered into a franchise development agreement and plan to open 94 IHOP restaurants in the next five years in TravelCenters' TA and Petro branded locations nationwide.

Financial terms of the agreement were not disclosed. The IHOP restaurants in the portfolio will be operated by the TA Restaurant Group, a division of TravelCenters.

In a news release, IHOP said the deal with TravelCenters "marks the single largest IHOP development deal in the brand's 61-year history."

There currently are four IHOP restaurants in the TravelCenters network, including one that opened this week in Jackson, Ga.

TravelCenters has more than 21,000 employees in more than 260 locations in 44 states and Canada. It operates nearly 650 full-service and quick-service restaurants in those locations.

There are more than 1,700 IHOP restaurants in the United States and about another 100 globally.