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MIAMI (CBSMiami/AP) — It's getting more and more expensive to drive on the highway.

Local officials in the Florida Keys are launching a study into whether a toll could be placed on the highway that connects the chain of islands to the Florida mainland.

The Miami Herald reported Sunday that Monroe County Commissioners have endorsed a resolution calling for a study.

The resolution says the tolls would apply to non-residents only.

U.S. 1 is the primary road that runs from the peninsula all the way to Key West.

One county commissioner said the idea of putting a toll on U.S. 1 has been around for 30 years. The paper reported some residents and businesses are fearful tolls could scare away tourists.

Supporters, however, say a toll could ease traffic problems and that the money could be used to take care of environmental concerns.

(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)