As the line goes past BROADWAY shops, you can get gangs of youths hanging around (dependent on weather and time of day) but there can often be a lot of broken glass.
And lastly, the stretch between the old railway station and Alder Rd (at the back of Sandfield Park) can be pretty treacherous in the wet, doesn't seem to drain too well and the moss that thrives there can be slippy. Other than these issues, it is a brilliant traffic free route from north to south. Happy riding.