Okay since i assume alot of us travel on the 401 lets post up some here.

401 - Exit 286 near Cambridge
Concrete overpass Townline rd overpass.

Officer will sit under the overpass on concrete usually facing the oncoming traffic, radar/lidar marked / unmarked cars have been spotted here.

401 - London area Elgin rd overpass
Radar/lidar stepped up enforcement!!!

401 - Chatam Area
Bloomfield rd overpass.

Radar / lidar.

Do not speed speed between London and Windsor especially near the Chatam or carnage alley they're. These officers are not like the GTA region ones and you can get a ticket for going 120.

Careful around many over passes and bridges.

401 -

Close to exit 338

Between Erin Mills pkwy and Winston Churchill

Unmarked cruiser, late at night, facing eastbound traffic coming under Winston Churchill blvd overpass will use lidar. The officer sits behind some shrubs where the road looks like its a mess in the dark on the shoulder of the road. very very hard to spot at night!

Also be careful when you go down the hill around Mavis/Hurontario, nothing confirmed but many reports of tickets being issued here.