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The sign of progress this winter will be “lots of bucket trucks” as the city moves to modernize intersections within nine priority arterial corridors.

The first phase of Green Light Lincoln, an estimated $18 million, six-year project, will include rearranging the signals, and installing cameras and radar detection boxes on many of the 131 intersections controlled by traffic signals along these nine routes, according to Lonnie Burklund, manager of engineering services for the city.

The street corridors are Nebraska 2, North 84th Street; South 84th Street, South 70th Street, O Street, Vine Street, Capitol Parkway/Normal Boulevard, Antelope Valley Parkway and Cornhusker Highway.

Signals will be switched to vertical, with the red light on top, which is a national standard. The city will often provide for flashing yellow signals that remind drivers to make a left turn, with caution.

Many drivers are still not sure what the flashing lights mean, several council members said during a discussion of the Green Light Lincoln program.

Public works staff plan to do more educating on the lights. Studies show that the flashing yellow arrow, which allows people to turn while yielding to oncoming traffic or pedestrians, is safer and more efficient.