Tampa wraps around the head of Tampa Bay, and its freeways converge just north of downtown. I-275 runs north-south through the city and crosses Old Tampa Bay on the Howard Frankland Bridge toward St. Petersburg. I-4 starts at the downtown interchange and heads east toward Plant City and Orlando, while I-75 swings around the city's eastern edge through Brandon and New Tampa. The Selmon Expressway, a toll road, links South Tampa and downtown with Brandon, and the Veterans Expressway heads northwest from the airport area toward Westchase and Citrus Park.
The interchange where I-275 meets I-4, long nicknamed Malfunction Junction, and the Howard Frankland are the worst bottlenecks, and a single crash on the bridge can stall traffic for miles in both directions. Dale Mabry Highway, Kennedy Boulevard, Hillsborough Avenue and Fowler Avenue are long, signal-heavy arterials that carry most local trips. The Gandy Bridge and the Courtney Campbell Causeway offer alternate ways across the bay, though both crowd up when the Frankland jams. A car that quits on a bridge has almost nowhere to go, so getting to the far end before stopping matters.
Tampa International Airport sits west of downtown beside Westshore, with garages and an economy lot that see a steady flow of cars that sat too long. MacDill Air Force Base fills the southern tip of the peninsula, so gate traffic adds to the morning rush on Dale Mabry and Bayshore Boulevard. The streetcar links downtown with Ybor City, and HART buses serve much of Hillsborough County, but nearly every household depends on a car.