OT Seismologists: fault line question

How do cities deal with utilities and infrastructure near fault lines?

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The San Andreas fault is an 800-mile fault zone that cuts through much of California. It's where the Earth's Pacific plate and North American plate meet, moving in opposite directions and resulting in a net movement that has averaged 2 inches per year. At that rate, Los Angeles and San Francisco will become neighbors in about 15 million years.

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Are roads constantly under a state of repair to accommodate plate movement? Two inches is a lot when you’re talking about gas lines, streets, electric grids, etc.

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