Those pushing Caltrain electrification toward fruition are looking to sweep up small swaths of privately-owned land along constrained areas of the corridor that officials contend is needed to modernize the regional rail system.

The San Mateo County Transit District Board of Directors this week agreed to initiate eminent domain proceedings against nearly a dozen property owners in Redwood City and Belmont should negotiations over the land acquisitions stymie.

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(6) comments

2shy2fly

Eminent domain for SamTrans now. And then eminent domain for high speed rail. This will dramatically change the peninsula. Say good-bye to thousands of old trees along the rail corridor. Say good-bye to several 100 year old quaint train stations (San Mateo, San Carlos. Here's a common sense question: Why not use clean diesel technology instead? No need for expensive electrical overhead lines, no need for eminent domain, no need for tree removal. Something tells me this may be a union/"jobs" push?

Reality Check

Diesel ("clean" or not) does not offer any of the other numerous and significant advantages of electrification, some of which include: fast accelerating & braking trains whose performance does not degrade with increasing train length, 100% renewable & sustainable power source, regenerative braking puts power back into the wire. The power to weight ratio of Caltrain's state-of-the-art Swiss EMUs is over double that of today's lumbering diesel hauled trains, which is critically important to blended operations with future HSR trains as well as for improved end-to-end travel times for current and future ridership in the corridor. The "clean diesel" push by a few anti-HSR NIMBYs is pathetically and laughably transparent and self-serving. Sorry, diesel — "clean" or not —is a dog that doesn't hunt.

vincent wei

Just for clarification, how many trains per day are going to be running when HSR and the electrification project are completed?

I was also wondering what the actual height of the grade separations, including power lines, from the surrounding ground level is?

Reality Check

As always, the number of times Caltrain runs its trains up and down the Peninsula per day depends on operating funding and ridership ... which are both impossible to confidently predict for 2021. Grade separation designs (and therefore heights above ground) vary from project to project and vary along the length of any particular project.

The poles and wires for electrification range from 20 to 30 feet above the rails (Caltrain is nearly 17 feet tall, and wires must at minimum be a few feet above that to allow safe and adequate clearance for pantographs and tall freight cars).

vincent wei

Thanks for the response.

So I understand it's hard to predict the future, but I believe somewhere Caltrain or someone projected the number of trains that would be running when they implemented electrification and HSR was built. It was something like double or more, something along that line, the number of existing trains.

In terms of the total height above ground for the grade separations, so it's the height of the newly built berm for the new rails on the over pass (assume 25 to 30 feet) plus the poles and wires for electrification at 20 to 30 feet...so a total of anywhere between 45 to 60 feet in height over the surrounding area?

John Baker

Per day? I don't know. But a 2015 study estimated six Caltrain runs and four HSR trains per hour at peak times (obviously less mid-day and nights). I don't know if that's each way or in total. Data from: http://www.spur.org/news/2017-05-25/how-caltrain-s-business-plan-can-reinvent-railroad

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