New speed limit signs, pavement markings and parking boxes are being proposed for sections of Naperville’s Gartner Road to slow motorists between Washington Street and Charles Avenue.
The changes, which will be rolled out over the coming year if approved, are in response to concerns from residents, who say drivers on Gartner east of Washington Street are traveling too fast.
After talking with city staff in August, residents made their case in September to the city’s Transportation Advisory Board, which asked the city’s Transportation, Engineering and Development department to investigate and make recommendations.
City project manager Michael Prousa, in a memo to the transportation board, said a speed and volume study was conducted at four sections of Gartner Road: Edgewater Drive to Driftwood Court, Driftwood Court to Julian Street, Julian Street to Watercress Drive and Whirlaway Avenue to Charles Avenue.
They found that speeds exceeded the city’s threshold range of 29-34 mph in two areas: Edgewater Drive to Driftwood Court and Whirlaway Avenue to Charles Avenue.
To address speeds from Edgewater Drive to Driftwood Court, the recommendation is to add a midblock curb extension, or choker, to reduce the width of the street and slow traffic.
From Julian Street to Charles Avenue, which includes Whirlaway Avenue, parking boxes would be painted, an action that also visually narrows the street, officials said.
The city will install 25 mph speed limit signs with a bright yellow border on Gartner Road near Washington Street, Charles Avenue, Olesen Drive and Naper Boulevard. Large 25 mph numbers and letters will be painted on the pavement near Washington Street for eastbound traffic and near Naper Boulevard for westbound traffic.
Prousa said along with the changes, signs displaying a vehicle’s speed will be set up on a rotating basis throughout the year and the Naperville Police Department will continue to ticket those who commit speeding violations.
Residents’ request for an all-way stop at Gartner Road and Julian Street did not meet city guidelines, Prousa said.
Staff looks at crash history, vehicle volumes, bicycle and pedestrian volumes, and travel speeds to determine if an all-way stop sign is warranted, he said. Based on data and analysis, Gartner Road and Julian Street did not meet the thresholds.
“Stop signs are used to assign right-of-way control and not to prevent speeding. Drivers typically go faster in between stop signs to make up for lost time,” he said in the memo.
Although the board requested staff to look at the Edgewater Drive at the intersection where the DuPage River Trail crosses Gartner Road, that will be postponed until spring to collect bicycle and pedestrian trail counts when the trail use is higher, he said.
The Transportation Advisory Board is expected to review the staff’s evaluation at its 7 pm Thursday meeting at the Naperville Municipal Center, 400 S. Eagle St.