PennDOT has placed a radar-controlled speed display board on Route 75 in Tuscarora Township, Juniata County, to remind drivers to obey the posted speed limit and hopefully to curb speeding in that area. The board faces southbound traffic between David and Mill streets, and it uses radar to determine the speeds of oncoming traffic, and then post the speed to the lighted sign. The speed limit there is 35 miles per hour. The board will remain for approximately four weeks.