Greater Greater Washington

Posts about Rosslyn

Transit


Did Rush Plus depress Blue Line ridership?

To make room for new Silver Line trains at the Rosslyn bottleneck, WMATA has reduced the number of Blue Line (and Orange Line) trains and added Yellow Line trains. A group calling itself Save the Blue Line claims that a similar change in 2012 caused riders to stop using Metro. Is that accurate?


Graph from Save The Blue Line.

In June of 2012, Metro started a new service pattern in Virginia. To make way for more Orange Line trains and more service in north Arlington and Fairfax, the agency started sending some "Blue" Line trains from Franconia over the Yellow Line bridge to Greenbelt, labeled "Rush Plus" Yellow Line trains.

In the two years since, has that lowered ridership?

It's hard to say with any certainty. Ridership at the stations south of Pentagon is lower than it was before Rush Plus. On the other hand, ridership was already dropping before Rush Plus started.

There's actually an error in the Save The Blue Line graph: while the arrow suggests Rush Plus started between the 2011 and 2012 data points, the 2012 data is actually from a count in May, before Rush Plus started. The arrow should actually point one more space to the right, and therefore the drop you can see on the graph began before Rush Plus.

Did Rush Plus contribute to the ridership drop?

We cannot prove causation from correlation, but perhaps we can glean some insight from the numbers.

If we look just at boardings from Van Dorn Street and Franconia/Springfield, we can see a noticeable dip starting in about 2010. It continues into 2013 before leveling off a bit.


This and all subsequent graphics by the author.

From 2011 to 2012 (one year before Rush Plus), ridership at Van Dorn and Franconia declined 3.94%. That drop contrasted with a systemwide increase in ridership of 0.13%. So before Rush Plus the Blue Line (the end at least) was already losing riders compared to the rest of the system.

The May 2013 number is the first data point after Rush Plus started. In the period from May 2012 to May 2013, ridership at Van Dorn and Franconia shrank 7.81%, significantly more than the systemwide decline of 2.57%.

The ridership decrease was somewhat attenuated between 2013 and 2014, where at Franconia and Van Dorn it dropped only 1.17% compared to 0.55% systemwide.

If we look at all the stations most affected by Rush Plus, from Pentagon south, we see similar trends, though they're less strong.

Prior to Rush Plus, average daily boardings at Pentagon and the stations to the south (to Huntington and Franconia/Springfield) declined 3.68% over the 12 months from May 2011 to May 2012. Following 11 months of Rush Plus, ridership on this section had dropped 4.49% (compared to 2.57% systemwide).

So the data do show that ridership on the Blue and Yellow lines south of Pentagon has been lower since Rush Plus was implemented. But the ridership was already shrinking before Rush Plus.

It's certainly possible that Rush Plus exacerbated the ridership loss, but there's no way to tell for sure with the data available.

Even if Rush Plus did cause a significant drop, there's little WMATA can do. The tracks between Rosslyn and Stadium/Armory are operating at their capacity of 26 trains per hour. With Silver Line service starting this weekend, something has to give. With higher ridership in the Rosslyn-Ballston corridor, WMATA has decided to shift some Blue Line trains onto the 7th Street subway.

The number of trains at Franconia and Van Dorn hasn't decreased. Passengers still have the same number of trains going downtown. But fewer of them go to Rosslyn. For getting to the western end of downtown, some riders will now be better off transferring at L'Enfant Plaza.

WMATA planners are hoping to relieve pressure in the future by upgrading the system to handle more 8-car trains and building new Blue Line platforms at Rosslyn. Future phases could take the line across downtown.

Without more railcars, power stations, and core capacity, WMATA has little alternative but to reduce Blue Line service. That's why riders frustrated at losing Blue Line trains can have the best impact by lobbying their elected officials to fund Metro's plans for 8-car trains, a second Rosslyn station, and eventually a new crossing into DC.

Transit


A "wye" is out, but a second Rosslyn station may make more Blue Line trains possible

Metro's planners have been studying ways to deal with the capacity crunch at Rosslyn station. A track connection from Court House to Arlington Cemetery isn't possible, but a second station for the Blue Line is, and could be built by 2025.

Each Metro track segment is limited to 26 trains per hour (TPH). At Rosslyn, where the Blue, Orange, and (soon!) Silver Lines come together, this limits the number of trains on each line. In 2012, Metro reduced the number of Blue Line trains to allow more Orange Line capacity. Later this month, the number of Blue Line trains will decline even more to make room for the Silver Line.


Two possible fixes for Rosslyn. Image from WMATA.

There's really no way to alleviate this crunch without additional track capacity. Eventually, it's likely that a second subway across downtown will be necessary to handle the ridership. Metro is currently exploring the idea of building a new loop line through the central city. A new subway would allow Orange and Silver lines to each have 13 slots, and the Blue Line could also to have increased service up to 13 TPH.

Earlier, Metro was looking at two ways to address the capacity constraints. One concept was a "wye" track connection, to allow trains coming from Court House to turn south and go toward Arlington Cemetery and vice versa. The follow-up study this year, though, determined that building foundations make this option impossible.


Potential location for a second Rosslyn station. Image from WMATA.

The other option, though, is feasible. It would require building a second station one block west of the current Rosslyn station. This new platform would connect to the existing Rosslyn station with a pedestrian tunnel. At least initially, only the Blue Line would use it. The Orange and Silver lines would stay in the current station.

If built, this would mean that the Blue Line would only operate between Franconia-Springfield and Rosslyn (though some Yellow Line trains might still start and end in Franconia as they do today). That would mean that, at least until the line is extended across the Potomac, Blue Line riders would need to transfer to an Orange or Silver line train at Rosslyn to get downtown. But all the lines at Rosslyn would be coming more frequently than they do today, which might alleviate the inconvenience of changing trains.

These diagrams I made last year show how the new station (and the infeasible wye) could work.


View peak service levels: Pre-Silver Line   With Silver Line
Possible solutions: Blue Line terminal Wye (rejected)  

Note: Since this graphic was created in 2013, Metro has announced there will be 5 TPH per hour on the Blue Line once the Silver Line opens, rather than 6 as shown here.

The wye would have allowed for more trains on the new Silver Line tracks and given riders from Alexandria and south Arlington a one-seat ride to Court House, Clarendon, etc. (if they caught the train every ten minutes going that way), but it also would have made service more complex, added chances for delays, and not fit in as well with a future Potomac River crossing. A new Rosslyn terminal would hopefully be just the first segment of a crosstown subway through Georgetown.


Possible extension to Georgetown.

Right now, Metro's planning staff is recommending the proposed station be moved forward for project development funding, which essentially means that they want it to get money for more detailed study. But the project is in the Metro 2025 plan, so planners anticipate that this could be opened within 11 yearsif the jurisdictions, particularly Virginia and its cities and counties, are willing to pay for it.

For the next few years, the capacity crush at Rosslyn is likely to get worse. But this project might be the light at the end of the tunnel for Blue, Orange, and Silver line riders.

Bicycling


Every DC & Arlington cycletrack, in one map

With DC's M Street and 1st Street cycletracks on the ground, the central city network of protected bike lanes is starting to actually look like a network.


Image by the author using Google.

This map shows every cycletrack in town. In addition to M Street and 1st Street, there's L Street, Pennsylvania Avenue, good old reliable 15th Street, and the diminutive R Street lane near the Metropolitan Branch Trail.

For the sake of completeness I also included Rosslyn's super tiny cycletrack, which exists mainly to access a popular Capital Bikeshare station.

Between DC's proposed 70 mile cycltrack network and plans coming together in South Arlington, hopefully future iterations of this map will look even better.

Notice anything missing or wrong?

Cross-posted at BeyondDC.

Development


Northern Virginia skyscraper rivalry has a new leader: Fairfax approves 470′ Capital One tower

Last Friday, Fairfax officially approved a new headquarters tower for Capital One in Tysons Corner. At 470 feet tall the new building will be the tallest in the DC region after the Washington Monument.


Proposed Capital One skyscraper. Image from Fairfax.

If that news sounds familiar, it's because in May of 2013 Fairfax approved developers proposed a 435 foot tall building, then the tallest in the region yet. And when Alexandria approved a 396 foot tall tower, that also would've been the tallest. Meanwhile, Arlington's 384 foot tall 1812 North Moore tower recently finished construction, officially taking over the title of region's tallest skyscraper (for now).

There may not be an explicit competition, but the fact is undeniable: Northern Virginia's in a full-on skyscraper rivalry. And Tysons is pulling insurmountably ahead.

At 470 feet tall, this new Tysons building will be the first in the DC region to officially eclipse Richmond's tallest, the 449 foot tall Monroe Building. Baltimore and Virginia Beach each have towers above 500 feet, often considered to be the breaking point for a true skyscraper.

Cross-posted at BeyondDC.

Architecture


Tetris on the side of a skyscraper? Why not, it's the future

What does it look like when one of Philadelphia's most prominent skyscrapers becomes a giant Tetris game board?

It looks awesome, that's what.


Photo by Bradley Maule for PhillySkyline.com.

Last Saturday, organizers for Philly Tech Week temporarily turned the 29-story Cira Centre into a huge game of Tetris. And it wasn't just for looks. Actual people played actual games, with the whole city looking on.

Meanwhile, construction is wrapping up on the DC region's new tallest skyscraper. Just sayin'.

Cross-posted at BeyondDC.

Pedestrians


Arlington's new vision for Rosslyn doesn't address the "intersection of doom"

Arlington County wants to create more transportation options in Rosslyn and make it safer and more pleasant to walk or bike there. But the plan the county's working on may undermine that vision by ignoring existing bicycle and pedestrian safety issues.


Image from Arlington County.

Realize Rosslyn is a major planning effort; for over a year, Arlington County has been holding meetings, studying travel patterns, examining viewsheds and gathering feedback from all sorts of people who live, work or play in and around Rosslyn.

County planners are currently gathering feedback on a draft policy framework, a sort of vision statement for the plan. Overall it is great policy, calling for things like wider sidewalks, cycle tracks, a better-connected street grid, and connecting Rosslyn to the Potomac. What is missing, however, is any policy for addressing what Arlington cyclists call the "intersection of doom," Lee Highway and North Lynn Street.

This intersection is the most frequent site of bicycle and pedestrian collisions, according to Arlington County Police statistics. In August of 2011, a series of three cyclist injuries occurred within a single week.


The "intersection of doom" forces drivers turning right to cross paths with cyclists going straight. Image from Arlington County and edited by the author.

Pedestrians and cyclists going from the Mount Vernon Trail to the Custis Trail, or waiting to cross Key Bridge have to go through this intersection. Passing through the same space are two lanes of traffic trying to turn right to from I-66 to the Key Bridge.

Both groups have a green light at largely the same time. Cyclists and pedestrians get a "leading interval" where the walk sign has turned, but the light is not yet green for cars. Without a "no turn on red" sign for the cars, however, drivers can still turn right into the crosswalk while people are still in it.

This intersection presents many challenges. Arlington County, the Virginia Department of Transportation, the National Park Service and private individuals all own land right around this intersection. Any construction work in the area has the potential to significantly snarl bicycle, pedestrian and auto traffic.

Meanwhile, simple fixes like a "no turn on red" prohibition for the I-66 cars only address part of the problem and would likely back traffic up onto the highway. And there are viewsheds that people would like to protect, sensitive habitats, mature trees, and significant hills to contend with. That said, the status quo is clearly unsafe and a solution needs to be found.

Arlington is working on several projects that could address this problem. The North Lynn Street Esplanade and Lee Highway/Custis Trail Safety Improvements Project would improve sight lines, shorten crossing distances, and provide some additional space for bicycles and pedestrians at this spot.

But it will not fix the root issue, which is that a large crowd of bikes, pedestrians and cars all have a green light at the same time. In addition, it is LONG delayed. The last time there was a public meeting, construction was slated to begin in 2013. The current schedule has it beginning in 2015.

The county's Rosslyn Circle Study examined ways to relocate the trail so as to avoid these intersections. The Rosslyn Esplanade Study examined the potential for tunneling under Lynn Street.

In 2011, GGW contributor Steve Offutt proposed relocating the I-66 off ramp as one solution. Many folks think the proposal for an air rights development rights over I-66 provides a great opportunity to do that.

Whatever fix is decided on, the Realize Rosslyn framework needs to acknowledge that there is a problem. It is great that the plan calls for new trails and cycle tracks, and it is great that the plan calls for new parks and wider sidewalks, but the plan must also recognize that our current trail is unsafe and include a policy to implement a real, long-term solution.

This Tuesday, March 18, the Arlington County Board will vote on a "request to advertise" the policy framework at their 6:45 pm board meeting at the County Board Room, 2100 Clarendon Blvd #300 in Courthouse. Please consider coming out and letting the Board know that this is an unacceptable oversight in the plans for Rosslyn.

If you can't make it to a meeting, you can also send your thoughts to the County Board, the County Manager and the Principal Planner for Realize Rosslyn.

Public Spaces


Captain America obliterates Rosslyn and Roosevelt Island

If you're like me, then you're probably pretty excited for the next Captain America movie, The Winter Soldier, coming out in April. Set in a reimagined DC, the film has a very different vision of Arlington's waterfront:


Helicarriers in the Potomac. Screencap by Rob Bricken on i09.

One of the things that piqued my interest was that S.H.I.E.L.D.'s Helicarriers, or flying aircraft carriers, are supposedly manufactured and stored underneath the Potomac right where the Orange and Blue Line tunnels are. That would certainly explain some of the delays on my daily commute!

Science fiction blog io9 screencapped an entire trailer of the film, giving us a better look at what that facility looks like. Above is an overhead shot of the Helicarrier facility.

In the film, the Georgetown side of the Potomac looks much the same, but the Arlington side looks very different. It looks like the Helicarrier facility has replaced part or all of Roosevelt Island, whose worth as a park and nature preserve is apparently less valuable than our need to have flying ships that can be blown up by demi-gods, possessed archers, and Hulks.

The Rosslyn skyline is missing, as well as I-66 and the George Washington Parkway which have been replaced with shorter office buildings. But maybe those were just moved underground. It's clear that at least one high-rise remains in Arlington, as we see Robert Redford's character looking out of his office window towards the National Mall.


Looking out across the Potomac. Screencap by Rob Bricken.

At least fans of DC's height limit can look forward to this film, unlike the disappointment they probably felt at the end of Terminator 2.

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