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Originally Posted by electricron
CHSR and Caltrain trains will be sharing tracks over 47 miles between SJ and SF. The CHSR trains will reach maximum speeds of just 110 mph while the Caltrain trains will reach 79 mph, lets say 80 mph to make the following math simpler.
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From what I've read, the plan is to run the CalTrains and HSR trains at the same speed.
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Caltrain has already started electrifying its tracks to shift from diesel to electric service. The agency’s trains are expected to match the 110-mph speeds the high-speed trains would travel while on the Peninsula.
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https://www.sfchronicle.com/news/art...n-15398354.php
But the CalTrains would need to stop more often:
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High-speed rail service along the San Francisco to San José corridor will be a blended system which will support modernized Caltrain service and high-speed rail service primarily on shared track largely within the existing Caltrain corridor. This approach minimizes impacts on surrounding communities, reduces project cost, improves safety and expedites implementation.
The Authority is continuing the planning and environmental process to further define the blended system. System improvements that will be defined during the planning and environmental review process include passing tracks, that can be used by high-speed rail to pass Caltrain trains that need to stop more frequently, system upgrades to support higher train performance and speed, system safety improvements, including grade crossings, and stations.
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https://hsr.ca.gov/high_speed_rail/p...ons/sf_sj.aspx