Growth: In 2003, there were 92,803 E-ZPass accounts that generated $135.2 million, or 35 percent of the Pennsylvania Turnpike Commission's annual revenue.

By 2014, the number of accounts had grown to 215,000, generating $610.3 million, or 71.2 percent of the commission's annual revenue.HOW TO get an E-ZPass: Online at

www.paturnpike.com/ezpass.Call the E-ZPass Customer Service Center at 877-736-6727From Sunoco APlus Convenience Stores inside turnpike service plazasAt Giant Stores. For a list of other participating stores visit the website. Most retailers charge a one-time fee; accounts must be registered within 72 hours.How it works:The E-ZPass transponder is usually mounted inside the vehicle on the windshield. It sends a signal to an overhead reader in the toll lane to classify the vehicle and deduct the appropriate toll from a prepaid account.