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Planners Plot Out Changes Aimed at Reducing Crashes at Memorial Circle

by Alex Koma December 6, 2018 at 10:45 am 0

Transportation officials are proposing a host of safety improvements for Memorial Circle, a confusing confluence of roads connecting Arlington National Cemetery to the Arlington Memorial Bridge.

The circle has long been the site of all manner of dangerous crashes, particularly those involving cyclists and pedestrians looking to access the nearby Mt. Vernon Trail or cross into D.C. But the National Park Service has drawn up a series of changes for the roads in the area designed to address the issue, including traffic pattern changes to transform the circle into something more like a traditional roundabout.

“The project area is at a major convergence of regional roadways and modes that interact through a complex series of roadway merges (on-ramps), weaves, diverges (off-ramps), and intersections, resulting in traffic congestion and crashes,” NPS planners wrote in a November environmental assessment. “The proposed action would change the way area users access and circulate through the area by car, bicycle, or foot.”

Officials estimate that the area saw approximately 600 crashes between 2006 and 2012. Lawmakers previously secured some safety improvements for the G.W. Parkway and the circle to try to address the issue. The new NPS proposal would address not only the circle itself, but also the roads approaching the area from both the north and south: S. Arlington Blvd and Washington Blvd.

Perhaps the most substantial change park officials are proposing would be cutting back on one lane of traffic in the circle, in order to “allow the circle to function more like a modern roundabout,” the NPS wrote. That means that drivers in the circle would have the right of way, and anyone entering the circle would need to yield to them.

The NPS also plans to split up an island on the east side of the circle, near where it meets the Memorial Bridge, allowing two westbound lanes coming from the bridge to “bypass the circle and head north onto S. Arlington Boulevard” and one lane of traffic to proceed and enter the circle.

For roads north of the circle, officials are proposing some improved signage at the various intersections, including “fluorescent yellow advance pedestrian crossing warning signs” at some and “rapid flashing beacon” signs at others.

But they’re also envisioning more dramatic improvements, like reducing Washington Blvd down to one lane, and removing both the “existing southern exit ramp connecting S. Arlington Blvd and S. Washington Blvd” and “the existing far left exit lane of S. Arlington Blvd.”

As S. Arlington Blvd exits the circle, the NPS also envisions reducing the road from three lanes down to two leading up to the crosswalk. The existing far left lane leading onto a ramp to S. Washington Blvd is slated to be removed, as is the exit ramp itself.

The NPS is planning similar pedestrian sign improvements for intersections south of the circle, as well as other lane reductions.

One major change would be the construction of a new concrete island where Washington Blvd enters the circle to its south, allowing two lanes of the road to bypass the circle and reach the Memorial Bridge, and one lane to enter the circle. That would require a slightly widening of the road in the area, the NPS wrote.

The plans also call for Washington Blvd to be reduced from four lanes to three south of the circle “in order to simplify merging patterns,” while the G.W. Parkway would be widened “to add an acceleration lane allowing traffic from Arlington Blvd to enter the parkway in its own dedicated lane before merging onto the two-lane parkway.”

Additionally, the NPS envisions relocating two bike and pedestrians crossings south of the circle. One, located as a trail crossing Washington Blvd, “would be relocated closer to the Circle, to allow pedestrians and bicyclists to cross where vehicle speeds are slower and where drivers are anticipating conflicts.” The other, designed to help people cross the parkway to the southeast of the circle, would be moved slightly further north of the parkway.

The NPS traffic analysis of these proposed changes suggest they’d generate “an overall improvement” in congestion on the roads, in addition to substantial safety upgrades.

People in the bicycling community are pretty skeptical of the latter assertion, however.

The NPS is accepting comments on the plans through Dec. 29.

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