Patrols have been stepped up by police around part of Tyne and Wear after it was posted as a meeting place on "dogging" websites.
Follingsby Lane, near Wardley, Washington appears on a number of "dogging" and "cruising" websites as a venue for men to meet men for sex.
Officers are now conducting regular patrols along the stretch of road.
Anyone caught having sex in the area is being warned that action will be taken against them, police said.
Insp Dave Willett said: "We have seen an increase in the number of men attending this area of Washington for the purposes of meeting for sex.
"Our patrols will be taking the registration of any vehicles suspiciously parked in the area and the owners of these vehicles may be subject to a home visit by one of our officers.
"We will also be contacting the administrators of those websites, on which the area is being posted as a meeting point, to warn those using the sites of the consequences they will face if visiting the area for this purpose."