Credit: Darrow Montgomery

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Beginning this Friday, drivers and pedestrians in Northwest may notice slight variations in the amount of time it takes for traffic lights to switch from red to green.

The District Department of Transportation says it will start tweaking “signal timing plans for 386 intersections” in the quadrant on June 3 as part of an effort to optimize the flow of vehicles and their bipedal peers. “The boundaries of the latest implementation area include Canal Road to the west, North Capitol to the east, Eastern and Western Avenues to the north, and Florida Avenue to the south,” DDOT notes in a release. Previously, switching signal times has “reduced traffic delays by up to 30 percent” in some areas included in the the District’s optimization initiative, launched in 2012.

“DDOT’s engineers are reprogramming the traffic signals using updated pedestrian and vehicular traffic data along with new traffic models reflecting current traffic conditions,” the department explains. “The new timing plans are designed to accommodate the District’s varying travel demands by time-of-day, including the morning, midday, and evening rush hours, as well as the diverse traffic patterns experienced on weekdays, weekends, and evenings.”

DDOT says it will make changes to traffic-signal timing as necessary through mid-June, and residents can report concerns to 311. The department aims to improve congestion around D.C.’s more than 1,650 signals by “early 2017.” 

Also this week: Parking-meter rates Districtwide increase tomorrow and Metro’s SafeTrack plan starts on Saturday.