Speed limit

The Frisco City Council on Tuesday adopted an ordinance to increase the speed limit on sections of FM 423.

The section from Panther Creek Parkway to US 380 will increase from 45 mph to 55 mph. The section from Panther Creek to Eldorado Parkway will go from 45 mph to 50 mph.

The portion of FM 423 from Eldorado to Little Elm Parkway will remain at 45 mph, and the section south of Little Elm Parkway will remain at 50 mph.

TxDOT requested the city increase the speed limit on those sections as the project to expand FM 423 to six lanes from Eldorado to US 380 was recently completed.

The council unanimously approved the ordinance, though Councilman Tim Nelson questioned having different speed limits on four sections.

“It can be a real challenge for people who get on auto pilot,” Nelson said.

Brian Moen, assistant director of engineering, said the speed limits are based on data taken from traffic studies. He said as the area becomes more built out, speed limits may become more in line with other sections.

“You look at Preston (Road) and how it's changed over time, going from 55 mph to 45 mph,” Moen said. “I imagine as time goes by we're going to see a decrease on the north end, trending more toward the 45 range. I think the same thing will happen along the corridors.”

Nelson said he has heard concerns that the different speed limits are speed traps and wants to ensure residents they are not.

“Those (traffic study) results are indicative of as you travel north and get past Panther Creek how things kind of clear out, and where we don't have that development, those speeds are higher on that end,” Moen said.

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