Sacramento sits at the meeting of the Sacramento and American rivers on the flat floor of the Central Valley, and several major highways cross here. I-5 runs north-south along the river through downtown and Natomas toward the airport. I-80 skirts the north side of the city toward the Bay Area and the Sierra, while US 50 runs east from downtown toward Rancho Cordova, Folsom and Lake Tahoe. SR 99 heads south toward Elk Grove and Stockton, and Business 80, the Capital City Freeway, loops between downtown and the northeast suburbs.
The freeway interchanges around downtown are the main bottlenecks. The I-5 and US 50 junction, the Business 80 and US 50 interchange and the I-80 and Business 80 split near Arden all back up at rush hour, and state worker commutes add heavy traffic into downtown every weekday. Surface streets in Midtown and downtown are a grid of one-way streets, while suburbs like Natomas and the Pocket rely on wide arterials. A breakdown in a freeway backup in summer is miserable, and an on-site repair avoids the long tow.
Sacramento International Airport sits north of the city off I-5, with parking garages and economy lots that are a frequent no-start location. SacRT light rail and buses serve downtown and several suburbs, and Amtrak stops at the downtown depot, but most people drive. Weekend trips up I-80 or US 50 to the Sierra are part of life here, and they put mountain grades and chain controls on cars that spend the rest of the week on flat valley roads.