Prosper residents can expect no changes to the speed limit on SH 289 — known for most of its length as Preston Road — following a recent study by the Texas Department of Transportation (TxDOT).
While drivers in Prosper will need to adjust to a lower speed limit, Celina residents can continue driving as usual following a city council vote this week.
The Study’s Findings
TxDOT’s study conducted along the stretch of road from US 380 (University Drive) to Business 289 (North Legacy Drive), measured vehicle speeds through Prosper and Celina to determine the 85th percentile speed — the speed at or below which most drivers travel.
The study revealed that drivers on Preston, between US 380 and FM 1461, typically travel between 50 and 55 mph, aligning with the current posted speed limit of 55 mph…