Arlington County has converted two intersections near Nottingham Elementary to four-way stops, in the wake of last year’s fatal crash on Little Falls Road.
In October, a driver struck and killed a woman at the intersection of Little Falls and John Marshall Drive. She was the third pedestrian killed along a two-block stretch of Little Falls Road near the school over the past eight years.
In the aftermath, the county began investigating the appropriateness of an all-way stop at the intersection.
Two such traffic patterns were installed along Little Falls Road in mid-March, Dept. of Environmental Services spokeswoman Katie O’Brien says: one at the intersection with John Marshall Drive and the other with N. Ohio Street.
“The two new all-way stop locations are located on both sides of the Nottingham Elementary School and help facilitate crossing opportunities for pedestrians and traffic control on this section of roadway,” O’Brien said. “Additional pavement markings and tactical improvements were made at the intersection of Little Falls Road and N. Nottingham Street.”
Last winter, as part of a traffic safety campaign, the county temporarily ramped up traffic enforcement on Little Falls Road, which saw two previous fatal crashes in 2014 and 2019.
Then, with the urging of the County Board to make safety improvements faster, it made some other short-term updates to the two intersections, says O’Brien.
The all-way stops were deemed necessary after multiple observations and on-site reviews to “assess the operations and effectiveness of the recent short-term improvements,” the spokeswoman said.
In another step to increase safety, last week the county reduced speeds near Nottingham. It made the area around the school a “School Slow Zone,” where there is a permanent 20 mile-per-hour speed limit on a neighborhood street within 600 feet of a key access point to a school.
Earlier this week, meanwhile, at the intersection of N. Quincy Street and 9th Street N. in Ballston, an all-way stop was added in response to an extensive study and data collection effort. Pavement markings will follow soon, says O’Brien.
Safety concerns at this intersection date back more than a decade. The county has added upgrades incrementally to the originally sign-free intersection, Google Maps shows.
By 2010, ARLnow previously reported, a crosswalk and “yield to pedestrians” flags were added. Then, the county added neon yellow pedestrian signs and a repainted crosswalk.
O’Brien says the county studied whether to add stop signs given the limited impact of previous upgrades and repeated safety concerns from residents who cited the high volume of traffic at the intersection.
“This most recent study’s conclusion at this location reflects further consideration of the travel volumes and crash history at this location,” O’Brien said. “It also is part of our Vision Zero approach to safety intervention that calls for a progressive method on implementing safety measures when past efforts do not result in the desired outcomes.”
A plan for a pedestrian bridge between Crystal City and Reagan National Airport is headed to the Arlington County Board for endorsement this weekend.
Specifically, the Board is set to bless a girder-style bridge that will connect a future southern entrance to the Virginia Railway Express station at 2011 Crystal Drive to the airport’s Terminal 2. It is also slated to approve more funding for an engineering firm to further develop designs for the bridge, dubbed the CC2DCA multimodal connection.
“The goal of the project is to create an intermodal connection designed to meet the needs of a broad range of pedestrians, bicyclists, and micro-mobility users of all ages and abilities between the core of Crystal City, the Mount Vernon Trail, and DCA,” per a county report.
Currently, getting from Crystal City to DCA on foot or bike involves navigating a series of trails and crossings the county has previously described as “circuitous.”
“Once completed, the journey from the foot of the bridge to the newly constructed security checkpoint at DCA would be about 1,300 feet,” the National Landing Business Improvement District said in a pamphlet published last winter. “Once completed, the new CC2DCA Multimodal Connector would make National Landing the only downtown in the country with its main street within a comfortable 5-minute walk from a major airport.”
After endorsing the project on Saturday, the Board is set to approve a new $4.2 million contract with Boston-based civil engineering firm Vanasse Hangen Brustlin, Inc. (VHB) so it can begin drafting preliminary designs. This includes nearly $386,000 in contingency.
Although it may seem incremental, the county says these signs of progress are important milestones in the years-long project, which the county projects could be completed in 2028.
First, this step forward means that a conceptual design phase and environmental review process led by the civil engineering firm VHB are wrapping up.
The County Board approved its first contract with the engineering firm in the spring of 2021 for design work.
Since then, the county, VHB and state and federal agencies winnowed down 16 initial bridge and tunnel connections to a “preferred alternative” and a runner-up bridge proposal, both unveiled last October.
The county says the U.S. Army Corps of Engineers, the Environmental Protection Agency and the National Parks Service signed off on the “preferred alternative” this February.
Arlington County is looking to make a three-block stretch in Courthouse safer for pedestrians, cyclists and motorists.
Specifically, it is looking for ways to improve conditions along a three-block stretch of Wilson Blvd and Clarendon Blvd between N. Uhle Street and N. Adams Street.
The county says the overall project goal is to “create a safe and consistent travel experience for people walking, taking transit, biking, and driving through the Courthouse section of the Rosslyn-Ballston corridor,” which has a lot of pedestrian, transit and micro-mobility activity.
Through this Sunday, the county is asking people to share their current experiences as road users and what upgrades matter to them.
When it comes to government priorities, safety is a top concern. The county says Clarendon and Wilson Blvd have seen a higher concentration of critical crashes in recent years.
They are included in a “High Injury Network,” a designation the county uses to prioritize adding transportation safety features to its least-safe roads. This is part of Arlington’s Vision Zero initiative to eliminate fatal and severe-injury crashes by 2030.
Within the project’s boundaries, there was a pedestrian crash with severe injuries on Clarendon Blvd in 2015, per a dashboard of crashes with severe and fatal injuries. One block east of the intersection with N. Uhle Street, there was a fatal pedestrian crash in 2014.
Another aim is to fill a “missing link” in bicycling facilities. Clarendon and Wilson Blvd are identified as “primary bicycling corridors” in the county’s Master Transportation Plan, as is N. Veitch Street, which connects cyclists to Langston Blvd, the Custis Trail and the Arlington Blvd Trail.
The county says it aims to realize community visions for better walking, cycling and transit experiences in Courthouse with new curbs and ramps for people with disabilities and improved bus stops and facilities near the Courthouse Metro station.
To encourage (proper) use of shared e-bikes and scooters, the county will review and provide “adequate end of trip facilities.” That could look like the corrals it has installed elsewhere in the Rosslyn-Ballston corridor and in Crystal City and Pentagon City.
Whatever improvements are selected would link to upcoming road resurfacing work. The county previously incorporated small upgrades when it resurfaced Clarendon Blvd from Courthouse Road and N. Scott Street and from N. Garfield Street to N. Adams Street.
The improvements would also link to street upgrades developer Greystar is delivering via its under-construction Landmark development (2050 Wilson Blvd), set to wrap up this fall, and its redevelopment on the former Wendy’s site (2025 Clarendon Blvd).
Those projects will bring about:
- A “bike island” at the intersection of 15th Street N. and Clarendon Blvd, as well as more and wider protected and dedicated bike lanes
- Wider sidewalks
- Improving pedestrian crossings of Wilson Blvd and Clarendon Blvd
- Two new “floating” bus stops
- A pedestrian promenade along N. Uhle Street from Clarendon Blvd and 15th Street N.
- Relocated and newly installed traffic signals
The County Board is set to vote this weekend on a contract to build a long-awaited pedestrian bridge.
On Saturday, it is expected that the Arlington County Board will approve a $1.6 million contract to construct the Shirlington Road Pedestrian Bridge. The 15-foot-wide prefabricated steel bridge will run the length of Four Mile Run and parallel to the road with the purpose of providing safer bicycle and pedestrian access.
It will connect Shirlington and S. Arlington Mill Drive to Jennie Dean Park and the Green Valley neighborhood. It will also serve local users of the heavily-used Four Mile Run and W&OD trails nearby.
Work on the bridge could begin in the second half of this year if the contract is approved over the weekend, Arlington Dept. of Environmental Services spokesperson Claudia Pors told ARLnow. That would mean a completion date in mid to late 2024.
“The existing Shirlington Road vehicular bridge primarily funnels vehicles to/from I-395 and lacks safe, comprehensive accommodations for pedestrians and bicyclists traveling through this area,” the report to the Board says.
“This project will provide a key missing link in the County’s bicycle network by providing a north-south protected bicycle facility that will link up with the existing Four Mile Run Trail along South Arlington Mill Drive to the west and along Four Mile Run in the City of Alexandria to the east of the bridge,” the report adds.
The bridge has been under discussion for two decades and has been the topic of conversation among county staff and the public for years.
It will be constructed in two parts, per Pors. First, the span will be built offsite, a process that will take about nine months, while abutments will be added at S. Arlington Mill Drive and Jennie Dean Park where each end of the bridge will go. Around this time, the bridge’s walls will be built and the sidewalk and crosswalk at S. Arlington Mill Drive will be shuttered. Bike and pedestrian traffic will be detoured.
The bridge, then, will be lifted by a crane and installed.
“It’s possible that lanes on the existing bridge will close to accommodate this installation, and the public would be given notice of any detours,” Pors noted.
New street lighting on each end of the bridge will be installed as well, plus median, sidewalk and crosswalk retrofits. A new Rectangular Rapid Flashing Beacon will be installed in the median as well.
The work is set to be done by D.C.-based Milani Construction, whose $1.38 million bid (plus $277,000 in contingency costs) actually came in under the county engineer’s estimated construction cost.
Last year, work was completed on the parallel vehicle bridge on Shirlington Road. That included resurfacing, routine maintenance, widening the sidewalk by several feet on the west side of the bridge, widening curb ramps, and adding a median at the mid-block crosswalk near 27th Street S.
A number of these improvements came as a result of public feedback.
Additionally, the county is set to study the feasibility of adding another crossing at the intersection of S. Arlington Mill Drive and Shirlington Road.
“County staff have begun study efforts and anticipate reaching out to the public for input this fall,” Pors said.
(Updated at 3:25 p.m.) A public green space with a play area for kids is now open at Clarendon’s outdoor shopping center.
The Loop, a central green space in the middle of the Crossing Clarendon, officially opened on Friday, a spokesperson confirmed to ARLnow. Several readers sent tips and photos of locals enjoying themselves in the new public park at 2800 Clarendon Blvd late last week.
The new park includes walkways, Adirondack chairs, new landscaping and artificial turf, a pipe-like tunnel, small bronze-colored statues of hopping rabbits, and an enclosed play area for kids. It was become known as the Loop due to the quarter-mile piece of roadway that loops around the plaza and through the shopping center.
The almost cage-like play area extends vertically with red metal wavy structures for kids to climb as well as several exit and entrance points.
Dogs are allowed in the park, but “they are required to relieve themselves only in the designated areas, highlighted by the on-site signage,” the spokesperson said.
The little park in the middle of the Loop allegedly opens today at The Crossing. For kids only, no dogs allowed. pic.twitter.com/SGtCyqKxVQ
— clarendon scene (@ClarendonScene) April 7, 2023
The park has been in the making for a while now.
It was first announced in early 2021 that property owner Regency Centers was looking into building a pedestrian-friendly plaza in the middle of the shopping center, which has an Apple Store, Pottery Barn, and Crate & Barrel. That spring, the entire mixed-use development was rebranded as The Crossing Clarendon.
Then, a year ago, plans were unveiled that showed some of what is now there. While the mock-ups and initial plans show that the end of the U-shaped road would be cut off from vehicular traffic to create a pedestrian-only area, that isn’t yet the case. Construction does appear to be continuing on the roadway, though.
“This area within The Crossing, known as The Loop, is a fresh look at how the community interacts with the center,” Regency Centers’ Vice President Andrew Kabat wrote in a statement. “The amenities, design, and layout were intentionally and considerately implemented to highlight what a unique location this is within the corridor, and a place for neighbors, shoppers, and friends to gather for a long time. This property was deserving of an updated face-lift, and we’re excited to provide more updates for The Crossing in the future.”
Hat tip to George Brazier
More signs preventing right turns at red lights are going up around Arlington County to reduce crashes.
They were added to long stretches of major arterial streets, including Columbia Pike and Wilson Blvd. The county has concurrently reprogrammed walk signals to give pedestrians a head start crossing the street.
These changes are being made to eliminate crashes that are fatal or result in serious injuries, the aim of its two-year-old traffic safety initiative known as Vision Zero.
“This is a win for pedestrian safety benefit,” said Chris Slatt, a member of Sustainable Mobility for Arlington, which has advocated for more of no-turn-on-red signs in areas with many pedestrians. “You would want to be safe to walk and not have to worry about driving through crosswalk.”
Some drivers have anecdotally reported congestion and longer idling times to ARLnow.
“Seems like these signs cause a lot of cars to sit and idle at intersections longer than they used to,” notes one tipster. “They also generally gum up traffic.”
County documents note there have been safety benefits seen in areas with high pedestrian volumes. Additionally, a focus group of elderly adults appreciated the red light restrictions.
The county’s view is that any reasonable trade-off is worth it.
“Although traffic may slightly increase at times due these safety interventions, the trade-off is a safer environment for our most vulnerable users — pedestrians and bicyclists,” Dept. of Environmental Services spokeswoman Katie O’Brien said.
During Vision Zero’s second year, per a report, the county has been adding no turn on red signs on:
- Columbia Pike from the county line to Washington Blvd
- Fairfax Drive from N. Glebe Road to N. Kirkwood Dr
- Clarendon Blvd from N. Highland Street to Ft. Myer Drive and Wilson Blvd
- Wilson Blvd from N. Glebe Road to Fort Myer Drive
Year 2 of Arlington’s Vision Zero plan wraps up this spring.
The county says it has also grown the number of signalized intersections with a 3-7 second head start for pedestrians from 31 to 77 during Year 2. Studies show this change can reduce pedestrian-vehicle collisions by up to 60%.
As of March 2022, the county had no-turn-on-red signs at 147 approaches — each point of an intersection — after adding signs at 35 approaches in Year 1 of Vision Zero, per a May report.
Priority intersections for these changes include those with many pedestrians and bicyclists, restricted sight distance and a history of turn-related crashes, according to a “Vision Zero toolkit” of traffic safety treatments.
Arlington joins other states and municipalities, including D.C., phasing out the right-on-red at busy intersections. A number of studies have shown right on red decreases safety and restrictions improve safety for pedestrians and cyclists.
"Washington, D.C., will end most right-on-red turns by 2025. Already, the state of Hawaii has prohibited them on a tourist-dense stretch of road in Honolulu. The city of Berkeley in California is considering banning right on red at all intersections." https://t.co/zF0etmTtTr
— The War on Cars (@TheWarOnCars) March 10, 2023
Right on red was legalized 50 years ago to prevent idling and save gas during an oil embargo proclaimed by oil-exporting Arab countries, according to the county. The Energy Policy and Conservation Act of 1975 required states to allow right turns on red to receive certain federal funds.
“Unfortunately, the country has been experiencing the trade-offs of right on red turns ever since,” the county said in the Vision Zero toolkit.
A high-traffic intersection one block north of Columbia Pike could get some safety upgrades, including a traffic signal.
Arlington County is embarking on a project to develop plans to upgrade the intersection of S. Glebe Road and 9th Street S., located between the Alcova Heights and Arlington Heights neighborhoods.
In addition to replacing a rapid-flash beacon with a traffic signal, the county says changes, in collaboration with the Virginia Dept. of Transportation, could include extending the curbs, updating the crosswalks and refuge medians, and fixing deteriorating ramps that do not comply with the Americans with Disabilities Act.
The forthcoming project responds to community feedback, a 2022 safety audit of Glebe Road — a VDOT-maintained artery — and a 2020 analysis of “crash hot spots,” according to a county webpage. The latter two reports include data, photos and community comments describing unsafe conditions for pedestrians, cyclists, transit users and drivers.
“Glebe Road from 14th Street N. to Columbia Pike is part of Arlington County’s High Injury Network,” the county says. “These corridors experience high concentrations of critical crashes compared to other corridors in Arlington.”
Per the safety audit, the intersection saw two pedestrian crashes and five left-turn vehicle crashes between January 2018 and February 2021. It also found that many people drive over the speed limit by at least 5 mph between 8th Street S. and 9th Street S., going an average of 38 mph.
“Community feedback received as part of the Vision Zero Action Plan development identified Glebe Road and 9th Street S. as an unsafe crossing,” the county said.
Arlington is working toward eliminating traffic-related serious injuries and deaths by 2030 as part of its initiative known as Vision Zero. Transportation advocates and the Arlington County Board called for swift action to realize plan goals and make roads safer after a rash of crashes involving pedestrians last year.
Some residents heralded the project on Twitter as sorely needed and a long time in coming.
Back in 2018, cyclists who participated in a “protest ride” to advocate for better cycling conditions, called specifically for improvements to 9th Street S., which is part of the Columbia Pike Bike Boulevards, a bicycle route parallel to the Pike.
— Chris Slatt (@alongthepike) March 8, 2023
This spring, there will be a public engagement opportunity in which the county will solicit feedback on existing conditions, including site constraints such as utility poles that block parts of the sidewalk.
County staff are preparing engagement materials, and “when that’s ready, the engagement will open,” Dept. of Environmental Services spokeswoman Claudia Pors said.
The engagement will first ask people to share how they currently use these streets as well as any ideas or concerns they have.
“This input will be used to refine to goals and develop concept options,” the webpage says.
This spring and summer, county staff will again request feedback on a concept plan, which will be incorporated into a final design plan that the county anticipates can be prepared this fall.
Arlington County has completed, started or has planned other transportation upgrades along Glebe Road, per the 2022 audit, including new or re-programmed traffic signals and new ramps.
A pedestrian bridge in the Rosslyn area is closed after inspectors founds something worrisome.
The bridge over Route 50, connecting N. Fairfax Drive and Fort Myer Drive in the Radnor-Fort Myer Heights neighborhood, was found to have deteriorating concrete in sections, according to Arlington County. The span is closed while crews work on repairs.
More from a county press release:
Engineers are closing the pedestrian bridge connecting North Fairfax Drive to Fort Myer Drive over Arlington Boulevard, effective immediately, as a result of a bridge inspection today, Thursday, December 8, out of an abundance of caution.
Pedestrian access over Arlington Boulevard will be maintained on the Rhodes Street bridge to the west and North Meade Street to the east.
The restrictions will stay in place until further notice. The Arlington Boulevard multi-use trail will remain open on the north side of the bridge.
Crews had been conducting maintenance work on the bridge’s surface. An inspection revealed deterioration of the concrete in some sections of the bridge. The bridge will be temporarily closed while crews work on these repairs.
(Updated at 4:10 p.m.) Police issued a traffic ticket every six minutes, on average, during an enforcement effort in front of Nottingham Elementary on Thursday afternoon.
The several block stretch of Little Falls Road near the school, in the Williamsburg neighborhood, has seen three fatal pedestrian crashes since 2014, including an elderly woman who was struck and killed by the driver of an SUV in October. That driver is not facing criminal charges.
Arlington County police conducted yesterday’s high-visibility enforcement as part of its Street Smart road safety campaign.
“During yesterday’s hour-long StreetSmart activation in the 5900 block of Little Falls Road, which coincided with school dismissal, officers issued 8 speeding citations and 2 citations for stop sign violations,” ACPD spokeswoman Ashley Savage tells ARLnow. “Drivers are reminded to slow down, be mindful of pedestrians and obey posted speed limits which change during school zone times and are indicated by flashing yellow lights.”
As part of the @COGStreetSmart campaign, officers conducted high-visibility traffic enforcement in the 5900 block of Little Falls Rd. The campaign aims to identify & change unsafe behavior patterns with the goal of reducing traffic related collisions and injuries on our roadways. pic.twitter.com/MEgOYDDST8
— ArlingtonCountyPD (@ArlingtonVaPD) December 1, 2022
“Officers will continue to conduct periodic random, rotating enforcement in the area with the goal of compliance even when police are not present,” Savage noted. “Additionally, as part of our education efforts, police have deployed a variable message board on Little Falls Road with transportation safety messaging.”
Arlington’s Dept. of Environmental Services added that safety improvements are in the works for the intersection where October’s crash happened.
“In response to the recent tragic crash fatality at the intersection of Little Falls Rd and John Marshall Dr, the Vision Zero Critical Crash team has developed short-term safety improvements and enhancements for this intersection,” the department said in a brief statement. “We plan to install these improvements by the end of the year, weather permitting.”
More on the fall Street Smart campaign in Arlington, below, via an ACPD video.
Unmarked or temporarily marked crosswalks along Langston Blvd are slated to be painted today (Friday), weather permitting.
The repainting activity comes nearly two months after the Virginia Department of Transportation paved Langston Blvd from Washington Blvd to N. Glebe Road, in East Falls Church, and from Military Road to N. Kenmore Street, in Cherrydale, according to a paving map.
VDOT, which manages the road, finished the repaving projects at the start of September, as part of its annual road repaving and repainting schedule.
According to the state transportation department, the lag between paving and painting is not uncommon.
“As the line painting contractors are different than the milling/paving contractors, sometimes schedules don’t line up as smoothly,” VDOT spokeswoman Ellen Kamilakis tells ARLnow.
Arlington County and some residents tell ARLnow they have raised concerns about the lag with state transportation department.
“VDOT is aware of our concerns and are working to complete the markings on Langston Blvd,” Arlington Dept. of Environmental Services spokeswoman Katie O’Brien said.
The repainting comes while pedestrian safety occupies the minds of Arlington County Board members, local advocates and residents. In recent months, drivers struck and killed two pedestrians: one woman near Thomas Jefferson Middle School was killed by an alleged drunk driver and a woman near Nottingham Elementary School was killed in a crash, which police are still investigating.
While VDOT repaves state routes, Arlington County does take advantage of the state’s schedule to consider changes to the streets under its purview through its Resurfacing for Complete Streets program, O’Brien said.
“For roadways maintained by VDOT, Arlington does coordinate with VDOT on improvements,” she said. “For example, this year VDOT will be adding crossing enhancements on Langston Blvd at our request.”
These include high visibility crosswalk markings, advance yield signs and markings, she says.
She added that the county coordinated with the state to “upgrade the two uncontrolled crosswalks at the intersections of Langston Blvd and N. Oakland Street and Langston Blvd and N. Nelson Street, as well as marking all side streets with high-visibility crosswalks instead of standard crosswalks.”
On Langston Blvd between Military Road and N. Kenmore Street, VDOT will be installing bike lane skip marks through intersections, high-visibility crosswalks along side streets and additional directional markings, according to the county’s first annual Vision Zero report, released this spring.
Arlington County is a year and a half into its Vision Zero initiative that aims to eliminate traffic fatalities and serious injuries. Between January 2021 and March 2022, the county updated 238 crosswalks to high-visibility crosswalks, according to the report.
It also “added new warning signage, pavement yield and high visibility crosswalk markings, and other minor improvements at 12 multilane crossing locations,” after a review of multi-lane crossings, per an August newsletter.
Work to rebuild Army Navy Drive through Pentagon City and improve safety and transit along the corridor is officially underway.
This morning, Arlington County and the Northern Virginia Transportation Authority ceremonially broke ground on the long-planned Army Navy Drive “Complete Street” Project, which is intended to make the current multi-lane expanse of Army Navy Drive between S. Joyce Street and 12th Street S. more friendly to pedestrians, cyclists and transit users.
The project includes shortened pedestrian crossings, dedicated transit lanes between S. Joyce Street and S. Hayes Street, planted medians, new traffic signals at five intersections, and in some places, narrowed or reduced vehicle travel lanes. There will be a protected, two-way bicycle lane along the south side of Army Navy Drive.
Work kicks off as the number of workers and residents in the area is projected to significantly increase in the coming years. Amazon is preparing to build the second phase of its HQ2 — known as PenPlace, and which includes the iconic “Helix” building — at the corner of Army Navy Drive and S. Eads Street, while continuing to hire toward its goal of 25,000 employees. Meanwhile, JBG Smith has filed plans to add 1,668 residential units to surface parking lots at the nearby RiverHouse complex.
For the next three weeks, road users will see signs of crews setting up for the Army Navy Drive project, like cones and a construction management trailer, says Mark Dennis, project manager for Arlington’s Dept. of Environmental Services. In mid-November, people will start to see demolition work.
“Both sides of the corridors will have markings and indicators that the entire area is a working construction zone,” Dennis told ARLnow. “There will be slight changes in traffic patterns to accommodate lane shifts that are needed.”
He said drivers will need to pay extra attention to navigate these changes.
Before scooping ceremonial dirt with gold-colored shovels, local and regional dignitaries celebrated the expected benefits of the project.
Arlington County Board Chair Katie Cristol said the project will make Army Navy Drive safer for pedestrians and cyclists and more convenient for bus riders. It will also slow down drivers, improve air quality and reduce stormwater runoff, she said.
“It’s better for all of us because providing safe, accessible and multimodal transportation is a key part of the economic competitiveness of Pentagon City and Arlington overall,” said Cristol.
NVTA CEO Monica Backmon celebrated the project for “getting people out of their single-occupancy vehicles and giving people options.”
The transportation authority said in a press release that it has invested more than $227 million into transportation projects located in Pentagon City, Crystal City and Potomac Yard, known collectively as National Landing.