CalTrain Electrification - How's It Doing?

Caltrain’s Peninsula Corridor Electrification Project is the kind of US transit upgrade we desperately need more of: a 51-mile modernization between San Francisco and San Jose that turns a solid but peak-focused commuter rail line into something closer to all-day regional rail. We walk through what changed, what it cost, and why the results matter for anyone who cares about public transportation, climate goals, and practical mobility in the Bay Area. 

We get specific about the infrastructure and operations, not just the headline “electric trains.” New electric multiple units accelerate and stop faster, which cuts running time and makes schedules easier to keep. That performance unlocks more frequent service and a simpler service pattern, with local SF to San Jose time dropping from about 100 minutes to 77 minutes and planned express trips coming in under an hour. We also dig into the real rider experience upgrades, from Wi Fi and power outlets to better accessibility and clearer passenger information. 

After the first full year of electrified operations, Caltrain reached 9.1 million trips in FY2025, up 47% from the year before. The weekend story is the standout: service doubles from 32 to 66 trains per day and weekend ridership climbs to 136% of pre-pandemic levels, showing how frequency and “show up and go” service can create demand without adding new stations. 

If you like deep dives on transit modernization, electric rail, and ridership data that actually tells a story, subscribe, share this with a friend, and leave a review so more people can find the show.

Transcript

California Transit Beyond High Speed Rail

SPEAKER_02 0:52

Transit news in California is often looked at in a little bit of a negative light, and a lot of that probably comes from the onslaught of stories that you see about California high-speed rail and its cost overruns, the delays, and the political fights. But there are other transit projects that are happening in California that have happened that really deserve more positive press coverage. I think of the LA Metro extensions that are happening ahead of the World Cup and ahead of the Olympics. And I also think of other projects like Caltrain in the San Francisco-San Jose area.

Caltrain Before Modernization

SPEAKER_01 1:30

Yeah, and California is clearly one of the biggest investors in public transit infrastructure in the United States. The state says that it's put more than$10 billion of their funding into transit and inner city rail projects just in the last two years. And that is on top of nearly$30 billion in federal infrastructure spending in the state since 2022. They also approved a$5.1 billion transit recovery package with more than$2.2 billion already announced for public transportation projects statewide.

SPEAKER_02 2:03

And one of those projects that we are going to dive into today is actually already completed and in fact was completed about a year ago, but is such a big success story. And that is Caltrain's Peninsula Corridor Electrification Project, which is the centerpiece of the agents, the agency's broader uh Caltrain modernization program. And this project, when you hear the name of it, the Corridor Electrification Project, it sounds like, okay, we just, you know, electrified maybe the rails or you know changed out the trains, but it was so much more than just you know swapping out their diesel trains for electric trains. It modernized a 51-mile corridor between San Francisco and San Jose and really created conditions for very different kinds of service, which included faster trips, more frequent trains, and uh a much stronger sort of all-day schedule.

SPEAKER_01 2:59

Yeah, and before we dive into all of the specifics of what happened here, uh, let's take a look at what the existing infrastructure was there beforehand. This grew out of the old Peninsula commuter service that ran between San Francisco and San Jose. And it actually dates back all the way to 1863 and is the longest continuously operated railroad west of the Mississippi, which is a pretty cool piece of history.

SPEAKER_02 3:26

Fast forward to today, and Caltrain serves 31 stations along this peninsula corridor that connects San Francisco, all of the cities that are along the peninsula, and San Jose, with additional service continuing south to Gilroy. Um, for most of its modern life, this really operated like what you would think of as a U.S. commuter service and an actually pretty reliable, good commuter service for the US. Um, but over time, using these diesel locomotives uh in an aging fleet, you start to see more maintenance issues, more downtime, more delays, and really um operational limitations when it came to um speed and increasing uh train frequency.

SPEAKER_01 4:11

Yeah, and before electrification, you would see a local trip between San Francisco and San Jose taking about 100 minutes. Uh, most of the stations along the route only saw a train about once every hour, with seven of the stations being the bigger ones seeing a train every 15 to 20 minutes, but only at the kind of peak hours. Uh, weekend service was also much less frequent with just 32 trains per day before this latest new schedule kicked in.

SPEAKER_02 4:40

So, all in all, for US standards, that sounds like a pretty decent commuter rail line. When we start looking, you know, comparing it to other, you know, commuter systems around the world, maybe not so much, but um definitely for the US wasn't too bad.

SPEAKER_01 4:54

For sure, for sure. But that doesn't mean that we shouldn't be investing in making it better. And I'm glad to see that California uh is is doing that. Absolutely.

Electrification Timeline And Budget Reality

SPEAKER_02 5:04

Uh with the old Caltrain service, there were three tiers of trains uh that operated here. You had the first tier, which were all of the local trains, which are kind of the one XX series, and these stopped at every station. So if you wanted to do local service, you had to hit every single station along that track. The second tier were the limited trains, those are the three, four, and five XX series. Uh, these are what you would think of as um, you know, limited stops. You would maybe hit, you know, several stops, but not every single stop between San Jose and San Francisco. Uh, and then you had what they called the baby bullet trains, which I really love. Um, I really love that that was what they called it. That was the the 7XX series, and that is exactly what you would think it would be, which is the express service uh that would only stop at a couple of the stations uh in between. Now, the problem with the uh the baby bullets were that they didn't run on the weekends and they didn't really run off-peak hours. So if you wanted off-peak or weekend uh transit or commuter service, then you were sort of stuck with these limited and these uh local trains.

SPEAKER_01 6:14

So, I mean, if you were traveling at peak time, this definitely would have felt like a really uh effective system, would have been pretty easy to navigate, but at the margins, this would be uh definitely something that you're really relying on a schedule. You don't want to just show up at the station and hope you're gonna catch a train because you would probably be a bit disappointed and do plenty of waiting.

SPEAKER_02 6:35

So, what is the modernization project that Caltrain uh really set off on? At its core, like we said at the top of the episode, this was an effort to modernize their main line that ran between San Francisco, or runs rather, between San Francisco and San Jose, and is an effort to replace these diesel locomotives with brand new electric train sets. Um, that did mean electrifying the entire stretch of the 51 mile corridor. They introduced these new trains and they upgraded all of the infrastructure in between that was needed to run them. But probably the biggest story of this project is that, you know, not only did they introduce new technology, um, but they created conditions for faster trips. And we can kind of talk about you know how that was possible just by switching the train sets. Um, with those faster trips, they also it allowed for more frequent service. Um, it allowed them to sort of simplify things, and they really started to transition this from what we think of as an old school US commuter line to something that looks a little bit more like a modern regional rail system. I wouldn't say S Bond. I'm not gonna go crazy and say it was similar to something that you see in Europe, but we're starting to uh we're starting to move in that direction.

SPEAKER_01 7:50

Yes, and uh with any uh public transportation project in the United States, uh the planning for this were the initial proposals date back to 1999, 27 years ago. Uh and the environmental planning took place uh in 2013, 2014, construction began in 2017, and the fully electrified service officially launched in September of 2024. So uh unfortunately, you know, we're we're not able to electrify rail lines like we're able to uh escalate the timelines of highway widenings and and highway construction. But um, you know, to get it to get it done to that timeline, uh, you know, happy, happy to see that the plan survived the 24 years to get to to come to fruition.

SPEAKER_02 8:39

I actually wonder how the technology evolved over that 24 years. I mean, the the signaling and the electrification process, like it it I would hope has had a major upgrade or major advancement from 1999. I could be wrong, it could all just be very stagnant, but it seems like the technology would be better today than in 1999.

SPEAKER_01 8:58

Yes, for sure. Um, the the initial project was budgeted for uh just shy of two billion dollars. The final adopted budget ended up around two and a half billion dollars, uh, which was an increase of roughly 23%.

What The Project Actually Built

SPEAKER_02 9:13

Yep. So again, also normal to see on US projects, the costs are always going to balloon. And over this time period that this was being built was also when we saw all projects around the country really balloon in price. The same thing happened in Austin. You know, we had our our$7 billion light rail system that we approved. Uh, and then once we got through COVID and started to actually get into that planning process, we realized everything had gone up by 60% in cost. So to see that this only went up a little over 20% versus other projects that had a 60% increase, you know, it's actually not the worst uh that we've seen in the US. So, what did that two and a half billion dollars actually pay for? Well, again, as we said a couple times, it really upgraded the core infrastructure of this corridor, and that included the electrification of the rail. Uh, it also included a lot of physical components, um, overhead contact system, the the traction power facilities, the brand new fleet of electric trains. That fleet and it actually represents a major capacity boost as well. Um, these trains, I think they are, if I'm remembering correctly, they're seven fixed cars on the train, which are larger than what the diesel sets were. Um, so it actually does allow for more capacity per train. Um, and they replaced roughly 75% of the fleet um initially. They still have some diesel tracks that run um south of this system, south of this corridor. Um, but for the most part, they replaced 75% of the existing diesel stock with these electrical multi-unit vehicles. They started with 19 train sets uh in 2024, and by 2027, they should have 23 uh train sets planned for this corridor.

SPEAKER_01 11:04

In addition to some of the infrastructure, this also was a major improvement in train performance. Uh, this is something that I didn't necessarily think about initially, but uh electrification of these rail lines makes it so that trains can both accelerate and stop faster. So uh, especially on a commuter service like this where you're making several stops along the way into the city, being able to accelerate quickly out of a station and get up to your full, you know, kind of operating traveling speed helps save significant amounts of time over the course of this entire journey from San Jose up to San Francisco. Um, it also kind of helps stay on schedule to be able to make those travel times shorter, make up lost time if you're hanging at a station for an extra minute or something, uh, to be able to keep performance as good as possible.

SPEAKER_02 11:56

Yeah, and this efficiency really allowed for faster trip times overall. So um we said earlier San Francisco to San Jose was originally around 100 minutes uh to commute between these two cities. This electrification process and this uh efficiency gain allowed that 100 minutes to drop to 77 minutes. So that is really significant for your daily commute.

SPEAKER_01 12:19

Yeah, no, I mean, and that and that like on a on a percentage basis too. I mean, that's that adds up quickly. And when you're you know doing that every single day of the week, I mean that it really does add up. Um, and that was just for the the local trips. The express trips uh now are looking at a service plan showing 59 minutes for express service and 69 minutes for limited service. So definitely really positive developments in terms of how fast you'll be able to make that journey now. And with that extra time savings, it also allows now for more frequent service on the line. Those trains can now turn around and start heading back in the other direction faster, ultimately making the frequencies of the pickups at all of these stops uh much faster, which is really great to see. Um, again, that is also a benefit that you're you're just earning from simply just making it so that it is easier to accelerate and decelerate at all of these stops, um, which is a really positive development.

Faster Trips And A Simpler Schedule

SPEAKER_02 13:18

Yeah, and with this increased frequency, they've also had to sort of simplify the service pattern uh and and sort of re-educate people on how to use this system. And I think this kind of goes without saying, but if there are more trains a day, it is just going to be easier to use a system like this because you have almost you have more chances to fail. So if you miss a train or um if you're not exactly sure where to go, like you there's another train coming uh that's always going to make the system feel a little more comfortable um to use. And Caltrain was was very clear when they were doing this that, you know, yes, they can increase the speed, um, but they had to simplify the service uh and make it easier to understand for people so that they can rely on it on a daily basis.

SPEAKER_01 14:05

So a lot of improvements there. Yeah, and with that simplification, I mean, some of the simplification literally comes from not having to think as hard about, oh, what time is the train leaving and needing to plan uh when you need to arrive at the station exactly. And if you miss that train, to your point, you're not having to wait forever. Uh the numbers here are really impressive, not only during the week, but on the weekends, the service went from 32 trains per day to 66 trains per day. So we're literally doubling the amount of service uh along this corridor on the weekend. So not only making it more simple for riders during the week, but even the be able the ability to be able to use this on the weekend became much easier as well.

SPEAKER_02 14:45

The upgrades also improved the South County connectivity. Uh, south of Tamion, California, Caltrain still operates a couple of the diesel units. Uh, these will take you up to uh San Jose, and there you can do a cross-platform transfer. The upgrades have allowed that transfer to just reduce dramatically in time. They they initially estimated about three minutes. I don't have current stats on what that transfer looks like, but a huge reduction in uh transfer time between these two uh train sets, and it really has saved commuters a lot of time. People who are coming up from Santa Clara County uh can save up to 28 minutes when they are trying to transfer to get to San Francisco. So uh a huge boost in connectivity there as well.

SPEAKER_01 15:34

The next thing though that this does, it also may seem small, but for folks who do it every day, I'm sure they really appreciate it. The onboard experience uh is improving dramatically with this. Uh, you're gonna have uh power outlets at every seat, Wi-Fi, digital trip information displays, the ability to charge your phones, um, better, more accessible bathrooms, um, and all of this sort of stuff that did not necessarily exist on the old diesel locomotives.

SPEAKER_02 16:00

Yeah, and also improving onboard experiences. These cars are more accessible uh for folks who have any type of uh mobility challenges. Uh the cars also have more doors, so there's less dwell time as people can use, you know, multiple doors to get onto this train. Uh, and it also comes with um bathrooms on board, which was uh, I think an upgrade from the previous uh diesel uh units as well. Uh and to continue to improve that experience, you have a lot of um safety and passenger information that's now on the trains. We talk about this a lot when we go to other cities. Uh Lewis has always always makes sure the camera's focused on like, oh, look at this sign that tells you when the next train's coming, or look at the sign that tells you how many minutes to the next station. Um, that those sort of digital uh displays have been included uh on the trains as well as um security cameras for uh Caltrain's security to monitor what's happening. So definitely a lot of uh upgrades there as well.

SPEAKER_01 17:01

And lastly, just the environmental aspect of this. Uh burning diesel is obviously worse for the environment than a fully electrified system here. Caltrain is saying that electrification is reducing their annual greenhouse gas emissions by about 250,000 metric tons of carbon dioxide, uh, which compares to taking roughly 55,000 cars off the road each year. So uh the environmental element of this is definitely uh another aspect worth pointing out here.

Ridership Jumps And Weekend Breakthrough

SPEAKER_02 17:32

Yeah. So that is a lot of information to throw at you about what the upgrades were to the system. So if we're trying to summarize this in the simplest way, um, Caltrain, not only did they get electric trains, they got a faster railroad, a more frequent railroad, a more understandable railroad, and a more comfortable railroad. So all improvements that we absolutely love to see happening in the US. And we did mention at the top of the episode that this opened over a year ago. So it seems like we're really late to the game. Um, why are we talking about it now?

SPEAKER_01 18:09

Well, I I'm glad you asked, Chris. Uh the reason we're we're talking about it now is that we just received information on ridership after this first full new year in service. And not only did the modernization happen, the trains are moving faster, but ridership is up. Uh ridership in fiscal year 2025 reached 9.1 million trips, which is up 47% from the year before. So that is a huge boost uh to any system. And again, we're not adding stations in new areas or anything like that. We are improving in existing infrastructure and increasing frequencies. So really love to see that.

SPEAKER_02 18:53

Yeah, in fact, in the first several months after electrified service really launched, and that's from October 2024 to uh June of 2025, ridership was up more than 52% uh compared to the same period a year earlier. So that growth just continued um to increase. But probably what's most interesting here and and probably one of the most important results is where the growth is happening. And the largest increases have actually been on the weekend service, which previously was one of the weakest uh parts of this sort of Caltrain model. Uh, and now it's one of the clearest success stories because weekend service, we said earlier, increased from 32 trains per day to 66 trains per day. And with that, the ridership surged, eventually reaching 136% of pre-pandemic levels. 136%.

SPEAKER_01 19:47

Yeah, that's really impressive, and it also just kind of says a lot about what our focus is on public transit in the United States kind of should be on moving forward, in my opinion. So many of these systems were designed with commuting in and out of downtown to go to an office job in mind. The schedules were set up that way, the design of everything was set up that way. But since COVID, that is just not the exact same way that people's transportation habits look. Uh, people are working from home multiple days a week. People want to go out in downtown on the weekends, late at night in some cases. And historically, these systems did not serve those people, but they have a really clear opportunity to be able to do just that now. And it is amazing to see Caltrain trying to take advantage of that new reality.

SPEAKER_02 20:45

Yeah, I almost wonder if that was sort of an accidental thing that happened or if it was like they they knew that the weekend service would improve. I'd be really interested to know that. But you make a good point. I wish we would focus on transit being more of a lifestyle service, you know, like you use it to go visit friends and to do these fun social things outside of work hours and not just how do I get from my house to work. Um, obviously, those are gonna be some of the biggest drivers of transit, but there's so many other use cases.

Lessons For Other Cities And Elections

SPEAKER_01 21:14

Yeah, I mean it it needs to be able to do a little like again, it was it was just so fixated almost on exclusively doing the work thing. And now it should be like, yeah, people are still gonna use it to ride to work. But but yes, it there there are so many other opportunities that people could be utilizing these uh these systems for. Um and I I think to so many other cities that could benefit from doing things like this. Uh before the episode started, I was chatting with you and I was saying I feel like Boston is a really good example here. We did a couple episodes in Boston last year. We even spoke with uh Andrew from the MBTA. You can go check out that episode if you're interested. Um we didn't get into the specifics there, but we lightly talked about electrification of the commuter rail network in the Boston area. That network is so extensive, it goes so many places, um, but it is for the most part running on old diesel systems and the frequencies, especially on the weekends, uh, leave something to be desired. I know that they've been trying to do a little bit more of it, but um, you know, if if we can use Caltrain as an example here of what could be with the massive MBTA system uh in in Massachusetts, I think that systems like that could really benefit in the future from something like this.

SPEAKER_02 22:27

Yeah, absolutely. Uh the very last point that I'll make on Caltrain here is that um riders are Feeling these changes as well. Caltrain does a customer satisfaction survey. And previously it was sitting at around 4.02% satisfied out of five. So not bad. That's actually, I would think, pretty decent for a transit system. After these changes, it rose to 4.41 out of five. So a really nice increase and actually is the highest uh degree of satisfaction from riders in the uh uh survey history. So definitely um positive improvements there, and it really shows what can be achieved by actually investing in systems like this in the US. If you watched our previous episode, we talked about Amtrak investing in new corridors and some pilot programs and how for the most part the ridership has shown a clear success story. You know, we look at the the mobile to New Orleans line being a real breakout success. Um, I'm gonna keep talking about that one as much as I can. But we see these these big success stories, and it just really shows that um I think there is a a definite uh you know defensible trend in the US that when we invest in these systems, you know, writers will flock to them and they can be successful. Um we just have to have the political will behind it.

SPEAKER_01 23:51

Right. And I and I that and that's the biggest hurdle is is getting the political will behind it. And but highlighting like pointing to these things and saying, like, you know, in Amtrak's case, you know, they're not really doing the frequency thing, unfortunately. We talked about reasons why in that episode, but they are taking the the wins where they can in terms of adding some new services, extending by one station. So that is a good example of hey, when you add new service, there's demand there, and that's a great example to point to there. And then this is like, hey, here's this existing service. When we put money into the infrastructure to make it better and make it run more frequent, even with no new stops, we're increasing ridership like crazy. So it's like the the data is extremely clear. We're we're we just need to look in the right places, and and frankly, politicians need to realize that these are things that are popular and that these are things that you want to vote for. And I think people just need to to make this an issue that they do vote for. And I wasn't planning on going this direction, but this is gonna be a midterm election year. Uh, you know, unfortunately at the federal level, I I just uh public transit is not gonna be a big issue. People are gonna run on this year. It's worth looking at what politicians' stance are on these things, but looking at your local elections is huge. Who's running in your city council, who's running for mayor, who's running for county commissioner or whatever it may be in your area, and trying to find out you know what what you can do. Um it makes a huge difference, especially at the local level. And just a handful of people can make a big difference at the local level.

Wrap Up And Support Options

SPEAKER_02 25:27

I was about to say it it only takes a handful of people. If you get with your friends and you identify the candidate that you like and maybe they don't have a clear transit policy, go to their events, write to that candidate, tell their campaign, we want to vote for your person, but um, I want better transit. What can your person, you know, promise that they're going to focus on? What are they going to support when it comes to public transit? Push your local politicians who are running, especially if they're newer politicians who look like they have a good chance of winning, they're going to be the most um receptive to some of this feedback. Identify those folks and really push them to uh to adopt transit policies and make them public. Um, that's always going to help. You know, we have to also tell our elected officials what we want. Do they listen? Not always. That's another topic, another time. Um but with that, I think, Lewis, we can probably start to wrap this one up.

SPEAKER_01 26:17

Yes, absolutely. Um, if you have not liked this video already, please consider doing so. It helps us get the show out to new people. Uh leave a comment. We do love reading the comments. We get a lot of episode ideas from the comments, so please keep doing that. If you want to support the show directly, the best ways to do so are via our Patreon. You can also buy us a coffee, check out the merch store down below, or even become a YouTube member, which is a new option that we have turned on. Only a handful of people there, but I'm now trying to, whenever we do bonus content that gets posted to Patreon, I also include it um on the YouTube member. Although Patreon is a little bit better for us if you don't mind doing going that direction. Um uh but with all of that being said, uh thank you all so much for watching and enjoy the rest of your transit tangents to do today.

SPEAKER_00 26:59

I'm saving that yo, public transit wherever set, watch me go.