Welcome to FTR - a series of seven mystery caches. This cache is not placed at the junction of Portobello Street, Rockingham Street and Trippet Lane. If you've solved the other puzzles in the series, and understood what this nonsense is all about, you should be able to work out where you need to go to finish off.
Please note there is no information contained in the other caches, so there is no need to (re)visit them.
The other caches in the series are:
FTR - Yellow
FTR - Pink
FTR - Blue
FTR - Orange
FTR - Green
FTR - Brown
If you don't get a smiley face on the checker straight away don't worry - widen your search area and if something looks an appropriate shape you're probably in the right area.