The Summit Police Department is announcing a roadside safety checkpoint for Friday, September 21st 2018. The checkpoint will be set up on Harlem Ave in the 5600 block and will operate from 11 p.m. to 4 a.m. The police detail is being paid for by a grant from the Illinois Department of Transportation Division of Traffic Safety. As partners with I. D. O. T. the Summit Police are focused on improving the safety of our roadways through education and enforcement.