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  • California High Speed Rail Routing

  • General discussion of passenger rail systems not otherwise covered in the specific forums in this category, including high speed rail.
General discussion of passenger rail systems not otherwise covered in the specific forums in this category, including high speed rail.

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 #791899  by FRN9
 
What are the chances of the FRA adopting standards more similar to those in Europe so that AGV trains can co-exist with freight, etc.?
 #791986  by electricron
 
FRN9 wrote:What are the chances of the FRA adopting standards more similar to those in Europe so that AGV trains can co-exist with freight, etc.?
I say the chances are better than what many think... Check out the later posts on this Railroad.Net thread...
http://www.railroad.net/forums/viewtopi ... 51&t=45656

The FRA is seriously looking at proposing an "Alternate" compliance standard very soon.
Whether the FRA adopts it is still the 1,000,000 Question.
 #793822  by BiZzAr0
 
electricron wrote:Routing of the CHSR is also being questioned in Southern California.
http://www.latimes.com/news/local/la-me ... 2823.story
Transit executives from Los Angeles and Orange counties are pressing officials with the state's high-speed rail project to consider resurrecting a plan to share existing track between Anaheim and downtown L.A.'s Union Station. The idea was considered and discarded by the California High-Speed Rail Authority in 2008, but key local leaders believe it could save up to $2 billion and avoid the need to condemn hundreds of homes and businesses. Bullet train officials have been pursuing the more costly and disruptive option of adding their own exclusive tracks and widening sections of the 34-mile route through the region's dense industrial and residential core. The existing corridor is used by Metrolink and Amtrak passenger trains as well as freight carriers.

Anyone thinking the CHSR train is going to need to reach speeds over 110 mph the 34 miles between Anaheim and Los Angeles needs to check what they are smoking and drinking. The reason why CHSR planners have suggested laying new dedicated tracks isn't to go faster than 110 mph, but to not go slower than 80 mph on the existing corridor --- because it is congested, and because they will be required to use FRA compliant HSR train-sets on the shared tracks. A dedicated HSR corridor can use lighter and faster non FRA compliant trains.
That will absolutely kill the whole project. Not sharing tracks with slower trains is like the number one rule of high speed rail.
 #794043  by electricron
 
BiZzAr0 wrote:That will absolutely kill the whole project. Not sharing tracks with slower trains is like the number one rule of high speed rail.
Amtrak runs Acela trains on the NE corridor in Maryland at 125 mph while MARC runs trains at 90 mph on shared tracks. They have been doing this for decades. I don''t see a problem over 34 miles between downtown L.A. and Anaheim.

I will agree with you that the number one rule applies when the HSR trains go faster than 125 mph...But you're a fool to believe CHSR trains will in the 34 miles between downtown L.A. and Anaheim.

The only reason CHSR want a HSR line to Anaheim is so that the HSR trains can originate in Orange County heading towards the central valley and northern California, so passengers will not have to transfer train in downtown L.A. Likewise for passengers from the central valley and northern California going to Orange County. But 220 mph speeds aren't required in that 34 miles, 220 mph speeds are needed in the central valley.....
 #795736  by 2nd trick op
 
BiZzAr0 wrote:
That will absolutely kill the whole project. Not sharing tracks with slower trains is like the number one rule of high speed rail.
The newcomers to this forum might see it that way, but for most of us who've been following the issue for years, this is where very-expensive dreams meet (head-on) with the realities of a market-disciplined economy. The economic necessity for replacing an auto-dominant system which has outgrown the economy's ability to provide sufficient quantities of both fuel and infrastructure ought to be self-apparent, but the increasing identification of the "HSR movement" with one side of the political divide which confronts our nation is limiting our opportunities for developing "interim" systems which could demonstrate their suitability to a wider segment of the population, and within a shorter time frame.

California intercity rail service, merely as it has evolved to date, represents Amtrak's single largest success story. Very few people thought the revival of the San Joaquins after a three-year hiatus would not only survive, but expand. Yet it did so, and did so with a marketing and feeder strategy born back in the 1950's. And the same plan could feed a relatively easy-to-build, Central Valley-focused service within a relatively short time, with the question of the obstacles at Tehachapi and within the "burbs" aired once the advantages of expansion are more readily demonstrated by the "interim" service.

If the current opportunities to develop a realistic approach to the surface transportation problem are scuttled by the stridency of a group determined to force an expensive "solution" onto a public with a large contingent of skeptics, the dreamers will have only themselves to blame.
Last edited by 2nd trick op on Thu Apr 15, 2010 8:07 am, edited 1 time in total.
 #795855  by jtr1962
 
2nd trick op wrote: If the current opportunities to develop a realistic approach to the surface transportation problem are scuttled by the stridency of a group determined to force an expensive "solution" onto a public with a large contingent of skeptics, the dreamers will have only themselves to blame.
Or put into simpler language, why let the perfect be the enemy of the good? Sure, running HSR for part of its run on mixed tracks isn't an ideal situation, but at least you're getting something tangible the general public can use sooner, rather than spending the time and money to build a dedicated ROW for the entire route. Later on, if the public asks for shorter trip times, then you can start thinking about building dedicated ROW to replace the mixed use sections. Realistically, if we're talking 34 miles here, what will a dedicated 220 mph ROW give us? Maybe 12 minutes start to stop? And the train will be lucky to reach its top speed for more than a few of those 34 miles. Meanwhile, upgrading the mixed use tracks for, say 125 mph, would give us perhaps 19 or 20 minutes travel time ( assuming you can get up to and maintain that speed for the entire run ). Bottom line then is a dedicated ROW would save you a big 8 or 9 minutes for this portion of the trip, yet it would be highly expensive to build given that it would run through heavily developed real estate.

In 10 or 15 years the economics might be way different. That conventional line might suddenly be at capacity with commuter and freight traffic, and you'll need more tracks to meet demand. When that time comes, the idea of building those 34 miles of dedicated ROW won't seem so far fetched.

Right now we need alternate FRA compliance much more than we need those 34 miles of ROW. If HSR is to be successful in the US, it's a given that high-speed trainsets will have to share tracks with freight or commuter trains for parts of their run. We need regulations which permit us to use light-weight equipment under those conditions, and also to allow the first/last units to be occupied. Both are important. The light weight for obvious reasons, and the first/last units occupied to allow use of EMU high-speed trainsets. High-speed trainsets are moving away from the locomotive-driven model anyway, plus EMUs allow higher starting acceleration. This is very important. You can maintain the same average speed with more closely spaced stops relative to a locomotive-driven trainset, or maintain a higher average speed with the same number of stops.
 #796123  by goodnightjohnwayne
 
2nd trick op wrote:The economic necessity for replacing an auto-dominant system which has outgrown the economy's ability to provide sufficient quantities of both fuel and infrastructure ought to be self-apparent, but the increasing identification of the "HSR movement" with one side of the political divide which confronts our nation is limiting our opportunities for developing "interim" systems which could demonstrate their suitability to a wider segment of the population, and within a shorter time frame.
In the event that the economy can no longer sustain a transportation system based on the personal automobile, it seems unlikely there will be sufficient resources available to build a multi-trillion dollar, comprehensive HSR network.
2nd trick op wrote:California intercity rail service, merely as it has evolved to date, represents Amtrak's single largest success story. Very few people thought the revival of the San Joaquins after a three-year hiatus would not only survive, but expand. Yet it did so, and did so with a marketing and feeder strategy born back in the 1950's. And the same plan could feed a relatively easy-to-build, Central Valley-focused service within a relatively short time, with the question of the obstacles at Tehachapi and within the "burbs" aired once the advantages of expansion are more readily demonstrated by the "interim" service.
The "California intercity rail service" is only successful in the sense that it's all based on a permanent funding source. Californians paid higher fuel prices to buy some very nice rolling stock from Hornell, NY. New York State thanks the California taxpayers for the jobs. However, the incremental, common sense service expansions from the late 1990s have set the political stage for the sheer lunacy that is CHSR. Now with California teetering on the brink of bankruptcy, does it really make sense to blow $100 billion on CSHR, based on fantasy land projections, delusions of HSR grandeur and outright lies?
 #796130  by jtr1962
 
goodnightjohnwayne wrote:In the event that the economy can no longer sustain a transportation system based on the personal automobile, it seems unlikely there will be sufficient resources available to build a multi-trillion dollar, comprehensive HSR network.
You're comparing apples and oranges. The unsustainability of the current auto transport system has its roots in the post WWII suburban boom. The massive construction of roads and bridges in the 1950s and 1960s was never sustainable. This infrastructure was built in a euphoria of suburbanization at the behest of real estate developers, with no concern regarding the future maintenance of these relatively lightly used facilities. It's a problem of population density, really. There just isn't enough of a tax base in many cases to sustain the existing roads ( and other infrastructure ). These roads in turn sustain the automobile culture which has existed in this country since the 1950s. As these lightly used roads fall into disrepair through lack of money, the suburban and exurban housing they sustain will wither and die. In fact, you're already seeing some suburbs turning into ghost towns due to the real estate crash. However, this crash simply accelerated a trend which is inevitable.

In the higher population density suburbs and cities there is of course enough of a tax base to sustain the roads. There is also in many cases sufficient population density to make rail viable. What it comes down to then is you'll have places to drive the auto within cities or higher density suburbs, but many of the roads in between high density areas will eventually cease to exist ( at least in any form suitable for high-speed, convenient travel ). End result is the auto will evolve into a machine largely designed for local errand duty, likely short range, with fewer amenities, and electrically powered. As such, you'll need alternate forms of medium and medium-long distance transportation. You'll also need more local transit as owning an auto will seem like less and less of an attractive proposition given its now much more limited utility compared to in the past. Rail in all its forms seems ideally suited for this niche. In this post-auto dominated world, the money which would have been spent in a futile effort to maintain a network of sparsely-traveled roads could instead be put towards funding rail.

I'll also point out that if we overbuild rail in our euphoria to replace the auto, we could end up in the same situation in 50 years as currently exists with the roads. In order to prevent this white elephant of a rail network from being built, it's important to choose our rail expansion projects carefully. If the population density just isn't there, then it doesn't make sense. And where the population density does exist, it should be built even if the costs initially seem excessive. Had NYC felt the subway system was too costly to build in the early 1900s, the city might never have expanded to the point it did. We must think in those terms with rail. Sure, $100 billion for CHSR when the state is teetering on bankruptcy seems crazy. However, from my research, if this isn't built as part of a larger network of expanded public transit, the state ( and its economy ) will literally grind to a halt as population growth brings the roads to a standstill in ten or twenty years. This is a clear case where the costs of building it are less than the costs of doing nothing. And nothing is really the only alternative. You can't add more roads in many cases. The room just isn't there. Even if it were, time and again history has shown that new roads quickly fill to capacity by encouraging more people to drive, and you're right back to where you started.
 #796409  by 2nd trick op
 
goodnightjohnwayne wrote:
The "California intercity rail service" is only successful in the sense that it's all based on a permanent funding source. Californians paid higher fuel prices to buy some very nice rolling stock from Hornell, NY. New York State thanks the California taxpayers for the jobs. However, the incremental, common sense service expansions from the late 1990s have set the political stage for the sheer lunacy that is CHSR. Now with California teetering on the brink of bankruptcy, does it really make sense to blow $100 billion on CSHR, based on fantasy land projections, delusions of HSR grandeur and outright lies?
While I agree with much of the reasoning, I have to point out that the continued growth of governmental interference with the private sector, and the insecurities it engenders with regard to the safety of capital has reached the point where public "investment" in rail transit is probably less wasteful than similar "investment" in highway infrastructure which will deteriorate at a faster rate because the (ab)users don't pay the full cost of the "service".

The obvious answer would be to let market forces sort things out, but that ain't gonna happen in a society where the vast majority of the electorate still views government as more "necessary" than "evil". It's possible that the entire mess will collapse under its own weight and have to be reinvented, but in the interim, market forces currenly in play are inveighing more and more against the private auto, at least within and on the fringes of the major metropolitan areas, and I see no reason why this trend isn't likely to intensify.

It's a hard choice, and nothing appears likely to make it any easier, but most of those arguing in the name of expediency likely have a particular interest to advance. And if you really believe that centralized authority knows what's best for all of us, I have a bridge in Brooklyn that I'd like to sell you .....after I've locked up anything of value.
Last edited by 2nd trick op on Fri Apr 16, 2010 2:22 pm, edited 4 times in total.
 #796411  by goodnightjohnwayne
 
jtr1962 wrote:
goodnightjohnwayne wrote:In the event that the economy can no longer sustain a transportation system based on the personal automobile, it seems unlikely there will be sufficient resources available to build a multi-trillion dollar, comprehensive HSR network.
You're comparing apples and oranges. The unsustainability of the current auto transport system has its roots in the post WWII suburban boom. The massive construction of roads and bridges in the 1950s and 1960s was never sustainable.
Actually, the construction of the original interstate highway system, in terms of route miles, was largely completed. Arguable, there should have been a continued investment of increasing the number of lane miles, even in rural segments.

jtr1962 wrote: This infrastructure was built in a euphoria of suburbanization at the behest of real estate developers, with no concern regarding the future maintenance of these relatively lightly used facilities. It's a problem of population density, really. There just isn't enough of a tax base in many cases to sustain the existing roads ( and other infrastructure ). These roads in turn sustain the automobile culture which has existed in this country since the 1950s. As these lightly used roads fall into disrepair through lack of money, the suburban and exurban housing they sustain will wither and die. In fact, you're already seeing some suburbs turning into ghost towns due to the real estate crash. However, this crash simply accelerated a trend which is inevitable.
First of all, you're confusing the early post-war phase of automobile based suburban transportation with the real estate speculation based outer suburbs, or "exurbs," of the recent economic bubble. Only in places like Detroit and Cleveland are you seeing the original inner ring of suburbs falling into poverty. The tax base issues you're referring have more to do with economic decline in anti-business states like Michigan, rather than the original, intended population density of post-war suburbs.

jtr1962 wrote:In the higher population density suburbs and cities there is of course enough of a tax base to sustain the roads. There is also in many cases sufficient population density to make rail viable. What it comes down to then is you'll have places to drive the auto within cities or higher density suburbs, but many of the roads in between high density areas will eventually cease to exist ( at least in any form suitable for high-speed, convenient travel ). End result is the auto will evolve into a machine largely designed for local errand duty, likely short range, with fewer amenities, and electrically powered. As such, you'll need alternate forms of medium and medium-long distance transportation. You'll also need more local transit as owning an auto will seem like less and less of an attractive proposition given its now much more limited utility compared to in the past. Rail in all its forms seems ideally suited for this niche. In this post-auto dominated world, the money which would have been spent in a futile effort to maintain a network of sparsely-traveled roads could instead be put towards funding rail.

I'll also point out that if we overbuild rail in our euphoria to replace the auto, we could end up in the same situation in 50 years as currently exists with the roads. In order to prevent this white elephant of a rail network from being built, it's important to choose our rail expansion projects carefully. If the population density just isn't there, then it doesn't make sense. And where the population density does exist, it should be built even if the costs initially seem excessive. Had NYC felt the subway system was too costly to build in the early 1900s, the city might never have expanded to the point it did. We must think in those terms with rail. Sure, $100 billion for CHSR when the state is teetering on bankruptcy seems crazy. However, from my research, if this isn't built as part of a larger network of expanded public transit, the state ( and its economy ) will literally grind to a halt as population growth brings the roads to a standstill in ten or twenty years. This is a clear case where the costs of building it are less than the costs of doing nothing. And nothing is really the only alternative. You can't add more roads in many cases. The room just isn't there. Even if it were, time and again history has shown that new roads quickly fill to capacity by encouraging more people to drive, and you're right back to where you started.
This is the sort of radicalized, anti-automotive stance that undermines public support for passenger rail. If you give people the choice between a massively expensive HSR system, with equally expensive LRT feeder lines, all of which require massive taxpayer subsidies both in terms of capital costs and operating costs - perhaps $1-2 trillion to build such a network and then $100-200 billion per year to subsidize its operation, and a status quo that allows you to get in your personal automobile and drive anywhere you please, without any additional taxburden, which system will the voters choose? Of course, the least informed but most vehement HSR advocates don't want voters to make the choice on the basis of the fact, but on carefully selected lies and misrepresentations.

Given a choice, most voters would just prefer to have the potholes filled.
 #796508  by jtr1962
 
goodnightjohnwayne wrote: Actually, the construction of the original interstate highway system, in terms of route miles, was largely completed. Arguable, there should have been a continued investment of increasing the number of lane miles, even in rural segments.
First off, why? The rural segments are mostly free flowing, and often underutilized, even with the existing number of lanes. Why add lanes when the traffic just isn't there, likely never will be there? Second, this to me would be no more justified than laying rail in places where the population density just couldn't generate sufficient ridership. Either one represents a subsidy of those who choose to live in these remote areas. Now I don't care where people choose to live, but there is no basis for subsidizing/continuing to subsidize what represents an inefficient use of limited resources. If a developer makes the decision to build a new housing tract in the middle of nowhere, then let them pay to build the roads and power lines there, then pass those costs onto the buyers. There's no benefit to me, the taxpayer, to subsidize such ventures.
First of all, you're confusing the early post-war phase of automobile based suburban transportation with the real estate speculation based outer suburbs, or "exurbs," of the recent economic bubble. Only in places like Detroit and Cleveland are you seeing the original inner ring of suburbs falling into poverty. The tax base issues you're referring have more to do with economic decline in anti-business states like Michigan, rather than the original, intended population density of post-war suburbs.
Yes, I'm mostly referring to the outer suburbs here. As a general rule they have much lower population density than the ones established decades ago, along with requiring more subsidies per capita to maintain. Many of the older, inner suburbs have long been served by rail, and have sufficient tax base to support their network of roads. It's mostly what was built in the last 25 years which is on the decline.
This is the sort of radicalized, anti-automotive stance that undermines public support for passenger rail. If you give people the choice between a massively expensive HSR system, with equally expensive LRT feeder lines, all of which require massive taxpayer subsidies both in terms of capital costs and operating costs - perhaps $1-2 trillion to build such a network and then $100-200 billion per year to subsidize its operation, and a status quo that allows you to get in your personal automobile and drive anywhere you please, without any additional taxburden, which system will the voters choose? Of course, the least informed but most vehement HSR advocates don't want voters to make the choice on the basis of the fact, but on carefully selected lies and misrepresentations.

Given a choice, most voters would just prefer to have the potholes filled.
Here you go again with the same type of non-response to any suggestion that the auto's day in the sun is over. This isn't my opinion. I've read lots of things suggesting this trend is real and happening. You have fewer miles driven per car, starting even before gas prices rose in 2008. The number of vehicles per capita has dropped slightly. The public is increasingly amenable to getting out of their cars, and into trains, when such trains are convenient. This was almost unthinkable even ten years ago. Moreover, there is a shift in attitudes, especially among the under 20 crowd who will help decide policy in the coming decades. Yet all you can think to do is shoot the messenger. Changing the existing system from an auto-dominated one to a more-balanced one is hardly radical. Like I've said many times, use each mode where it's the best fit. You don't use high-speed trains to do grocery shopping, and by the same token it makes little sense to use the auto for every transportation role. The auto's best fit is local, low-speed errand duty with indeterminant paths and lots of stops. That's the role we should continue to support it in via paying for local roads. From an energy, comfort, safety, and time standpoint if you're going any distance it makes more sense to use high-speed rail.

While I won't question your figures, did you bother to figure out what we've spent annually on direct and indirect subsidies of automobiles? The figure is way higher than $200 billion just for pollution-related damage alone ( some rough estimates put the pollution cost at over $1 per gallon of gas ). Driving is heavily subsidized whether you care to admit it or not. Of course, it seems subsidies are only a bad thing if they go for things you don't personally see the need for, like rail. I'll guess that the existing system of roads will require somewhere on the order of $1 - 2 trillion to bring back into a state of good repair. Most importantly, the status quo you preach, which will in fact require huge additional tax burdens to maintain, exacts an additional burden on users which the alternative doesn't. Namely, you have to purchase, maintain, and operate the automobile yourself, as opposed to just paying the fare. This fact already shuts out a significant portion of the population from using the roads they subsidize. Either they can't physically drive, can't afford a car, or both. Right now this demographic is left with a piecemeal way of getting around. Indeed, in many places they really have no way of getting around. In short, the auto's day in the sun is coming to an end largely because it is expensive, and far from a universal solution. This isn't my opinion, it's FACT based on demographics. As the demographic who can't or won't own automobiles increases, you'll see a cooling of the idea that we should subsidize auto travel at present levels, along with greater political support for making drivers pay the true social costs of their driving. Recent transportation policy even acknowledged this fact by placing the needs of bicycles and pedestrians as equal to those of the auto. The auto will never disappear of course, but I see a future where it is largely relegated to local errand duty in what are currently the inner suburbs. In some cities, notably places like Manhattan, it may indeed be banned from use for the simple reason of being superfluous ( and incidentally the idea of banning autos from Manhattan has been proposed on and off since the early 1960s, and one of these days 10 or 20 years hence I've little doubt such proposals will garner sufficient political support to pass ).

In short, right now we have a massive transportation problem in this country which will make us increasingly uncompetitive on the world stage if we continue to stick our heads in the sand. The auto-centric system, even ignoring the costs I mentioned earlier, exacts a huge economic toll in terms of time on the populace. Moreover, this can't be fixed by just building more roads. Most places with traffic congestion not only lack room for more roads, but have a populace prepared to fight tool and nail against the idea of road expansion. Witness what happened in Queens last decade when it was proposed to widen the Long Island Expressway ( and incidentally for all the inconvenience this would have caused, the end result would have been a big 30 seconds saved for LI commuters ). Bottom line is the problem we have can't be fixed without putting alternatives in place, notably rail in all forms. Nothing else gives as such large capacity, in relatively small space. And rail is much more amenable to putting underground in places where putting it above ground would disrupt existing communites. The same communites which might vehemently fight an expanded highway, or even an elevated railway, couldn't care less if a TBM dug a railway tunnel right under their noses. Expensive? Sure, but so is continuing the status quo. As 2nd trick op mentioned, there is indeed an economic necessity to replace the auto-centric system with something a lot more balanced, especially around major metropolitan areas. In places like Iowa or Dakota of course there is really no alternative to the personal auto for most transportation needs. If such areas see rail at all, it will be simply because it's passing through while connecting points of higher population density.

EDIT: Thinking about your figures of $1 - $2 trillion to build it, plus up to $200 billion annual subsidies, I'll gladly take those in a heartbeat. Spread among 300 million people, my share comes to an initial outlay of around $7000 tops, plus an annual payment of about $700. There's no car I could purchase and operate for that kind of money. Just the insurance alone would exceed $700 annually. So bill me. I'll glad pay knowing in return I'll get a system which will save me money over a private auto ( which I don't nor can I afford to own, nor would I want to even if I could ).
 #809203  by jstolberg
 
"San Francisco will get $400 million of California's $2.25 billion high-speed rail stimulus package for the Transbay terminal, according to a letter from the Federal Railroad Administration."

"Anaheim, according to a rail insider, was "outfoxed" by San Francisco, the only major city in California that has funding in place for its terminal. San Francisco applied for and received specific federal stimulus funding for its high-speed rail terminal, something other cities around the state, including Anaheim, failed to do."
http://voiceofoc.org/oc_north/article_3 ... 002e0.html

"Demolition of the 71-year-old Transbay Terminal is scheduled to begin late this year. It is expected to take eight months to tear it down and then seven years to build the glittering new Transbay Terminal.

"In the meantime, a temporary terminal a block and half away will handle AC Transit's 14,000 passengers a day.

The temporary terminal is expected to be operational by August. That's when the seven-year contract for demolition of the old terminal and construction of the new one is expected to be signed.
http://abclocal.go.com/kgo/story?sectio ... id=7438608

Meanwhile, "the California High-Speed Rail Authority has submitted three planning grant applications that could provide as much as $16.6 million in additional federal funding for the state's high-speed train project."

"The applications submitted this week would cover service development plans to be completed within the next two years on later-stage portions of the project, which would complete the 800-mile network across the state and also incorporate the Altamont Rail Corridor Project. The PRIIA funds are expected to be awarded later this summer."
http://www.prnewswire.com/news-releases ... 77504.html
 #819007  by jstolberg
 
Bidding on the LA-SF segment may begin late next year.
The state expects bids from about 10 trainmakers and construction may start as early as the first half of 2012, Quentin Kopp, a California High Speed Rail Authority board member, said in an interview in Los Angeles yesterday. The train will whisk passengers between the two cities, 432 miles apart, in less than 2 hours 40 minutes, according to the state-backed group’s website.
http://www.bloomberg.com/apps/news?pid= ... ah0&pos=14
 #882094  by mikeydc03
 
So now that more issues are still rising with CA High Speed rail, this issue should still be addressed.

1. Should BART's new cars be ordered with adjustable gauge wheels so that the system can be phased into a Standard Gauge format?
A. Benefits
1. Future BART expansions can be built with off the shelf products.
2. Reduced construction costs due to standardized materials.
3. Other trains can utilize the BART network, reducing the duplicity waste generated.
4. CA HSR rail costs can be decreased by better utilizing existing infrastructure and stations.
5. Californians benefit from increased connectivity & Ridership revenues.
6. Jobs created in the Bay Area.
7. Rail service expanded.
B. Costs
1. The Intermediate BART trains will have to be dual gauge.
2. The costs associated with converting the broad gauge to standard gauge.
3. Costs associated with intermixing traffic on a heavy rail system.

When BART was in its development phases broad gauge rails were used to provide stability at higher speeds, and for the winds to be met while crossing the Golden Gate Bridge, since BART operates neither on High Speed tracks, or across the Golden Gate Bridge, the system needs to be adapted to meet the current needs of California. The system should house the roots of our High Speed network, so people can travel from Northern California to Southern California as the High Speed Route is constructed. This will serve as an intermittent solution while the route through the bay is built. It will also serve as expansion for commuter, intercity, and High Speed Rail.

The Central Valley is where the High Speed Rail will start, so this route will extend from Dublin/Pleasanton to Tracey, and Connecting down to Fresno. From here the route will link with the High Speed route getting passengers to Southern California faster than possible today. Most of the day, BART does not utilize the tunnels at Capacity, so there is room to operate trains in here. During the peak rush it is estimated that 16-20 trains per hour operate through the Trans-Bay tunnels, the capacity is 30 trains per hour, meaning that even at rush hour there is room for 10 more peak our trains, creating a diverting track to the transbay terminal would solve to the station capacity problems BART is currently plagued with.

So before saying there is no place on earth "commuter rail" and heavy rail operate together, there are examples in Europe today. Germany operates the ICE and S-Bahn on the same tracks, and those trains operate at higher frequency most of the time than BART. The Netherlands are another example where regional rail and Intercity rail operate on the same tracks. The NEC is an example in the United States, MBTA and Amtrak, NJT and Amtrak, MARC and Amtrak, SEPTA and Amtrak, VRE & Amtrak all run on the same tracks every single day, this is an opportunity to bring synergy to the west coast!
 #882165  by electricron
 
I fail to see any advantages of changing BART's gauge. I think too many people forget that BART operates under FTA regulations, and that commuter rail, freight, CHSR, and Amtrak operate under FRA regulations. There's isn't the slightest possible chance you'll see BART trains operating on CHSR tracks, nor CHSR trains operating on BART tracks. Therefore, there is no valid reason to use the same gauges.