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A new analysis by the California High-Speed Rail Authority calling for a four-track rail system between the Bay Area and Central Valley has set off a fresh wave of criticism from Palo Alto and surrounding cities, with many calling the latest document a betrayal of the rail authority’s earlier promises.

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CalMatters is a Sacramento-based nonpartisan, nonprofit journalism venture committed to explaining how California's state Capitol works and why it matters. It works with more than 130 media partners throughout the state that have long, deep relationships with their local audiences, including Embarcadero Media.

Gennady Sheyner covers local and regional politics, housing, transportation and other topics for the Palo Alto Weekly, Palo Alto Online and their sister publications. He has won awards for his coverage...