ASPEN Authorities set up a point of entry Wednesday morning, stopping all commercial vehicles entering Aspen.The checkpoint resulted in one arrest and many vehicles taken out of service with safety problems. Aspen police worked with the Pitkin County Sheriff’s Office and the state Department of Revenue to set up the entry point, including a weigh station, with an apparent goal of regulating the large volume of construction traffic entering town.The arrest was on an active traffic warrant out of Jefferson County. Colo. Aspen patrol officer Jim Crowley said violations meant fines for about a dozen motorists. There was one weight violation. The checkpoint ran from 8 to 11:30 a.m. at the bus turnaround by the roundabout. Crowley said authorities did not search any vehicles and found no drugs, guns or any other contraband. He said the point of entry did not have anything to do with immigration concerns. Crowley said commercial vehicle inspection will take place a number of times throughout the summer, depending on timing between the Revenue Department and the sheriff’s office.