FasTrak is an electronic toll collection system that allows motorists to use “FasTrak” lanes without stopping on toll roads, bridges, and Express Lanes throughout California. To participate, solo drivers must have a prepaid FasTrak account and a transponder properly installed on their windshield when they use a FasTrak toll road or bridge. The correct toll is automatically deducted from a prepaid account. You can open a SANDAG FasTrak account with a credit card or check. Click here to open an I-15 Express Lanes FasTrak account. Click here to open a South Bay Expressway FasTrak account.