Ranking faster, cheaper fixes to Northern Virginia’s congestion woes


A gaggle that helps develop Northern Virginia’s long-term transportation plan has ranked tasks that supply cheaper fixes by way of site visitors congestion aid.


Alexandria’s Smart & Connected Vehicle Infrastructure plan would goal to cut back congestion on Route 1. (WTOP/Neal Augenstein)

Construction tasks to enhance commutes for drivers in Northern Virginia sometimes take a number of money and time. But a bunch that helps develop the world’s long-term transportation plan has ranked tasks that supply the largest bang for the buck by way of site visitors congestion aid.

The Northern Virginia Transportation Authority will current its ranked suggestions Thursday, for funding almost $700 million in tasks to advance the area’s multimodal transportation community.

With 9 counties and cities, in addition to Virginia Railway Express in search of items of the funding pie, the most costly slice is $210 million for Fairfax County to enhance Route 7 between the Beltway and Interstate 66.

However, the transportation authority additionally ranks the tasks that may carry essentially the most congestion aid for the least cash.

At the highest of the column labeled Congestion Reduction Relative to Cost — or CRRC — the City of Falls Church Signal Prioritization Project ranks No. 1.

The focus of town’s plan is on Route 7, additionally known as Broad Street, in Falls Church.

Five intersections on Route 7, and two on close by Washington Street, could be outfitted with know-how known as Transit Signal Priority. With the know-how, sensors on transit buses talk with site visitors indicators, to make inexperienced lights longer and purple lights shorter, because the bus approaches an intersection.

In its proposal, town stated the Transit Signal Priority know-how “improves transit choices and operations, with out taking on extra area on the roadway or proper of approach.” With a challenge value of $1.4 million, it could begin in 2028.

The second-highest-ranked challenge is the City of Alexandria’s Smart & Connected Vehicle Infrastructure plan.

The Alexandria plan focuses on the Potomac Yard space. On Route 1 and close to the brand new Metrorail station, a community of sensors, edge servers and a knowledge administration system would facilitate communication “with human-driven motor automobiles and autonomous shuttles.”

The know-how would assist ‘good’ pushed and autonomous automobiles “optimize their strategy velocity at intersections, lowering stopping time and congestion on heavy site visitors corridors.”

In addition, digicam and LIDAR detection might assist warn suitable automobiles when a pedestrian or different automobile is dangerously getting into an intersection.

With a request of $5 million, the challenge ranks second within the Northern Virginia Transportation Authority’s checklist of most cost-effective security and congestion aid tasks.

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