I have seen the officer(s) set up shop there for speed traps almost every other day around the 12-4 or 12-5 time frame for the most part. The Trap is set up where it can be ran by one officer or multiple officers at once. There is a officer concealed well by thick tall brush which makes him invisible to people traveling East on Gravois Rd. at the top of Gravois Ridge Ct. which is on high ground on top of a small grade hill. He is looking North East onto Gravois Rd. using radar and sometimes tagging people traveling East on Gravois Rd. The road he is on Leads to Gravois Rd. because it is a residential street. Sometimes he will just be on Gravois Rd. just past the right turn when you get off of I-270. It is ran with multiple officers when one officer sits up on Gravois Ridge Ct. and radar scans cars going east and cars going west on Gravois Rd. other officers will then be waiting at either the entrance of Hadley Hill Rd., the entrance to Hill Top Rd., and the entrance to Landmark Pkwy Dr.