A coroner says there has been no new evidence following the death of the former One Direction star.
Buckinghamshire Council says it is a "long-standing" issue along two A-roads in the county.
The operation to remove 21,000 tonnes of fly-tipped rubbish is expected to take about six months.
Norbert Maiksner has been jailed for life for murdering his girlfriend Frances Obiefuleh in Havant, Hampshire.
Frances Obiefuleh was suffocated by her boyfriend Norbert Maiksner in Havant, Hampshire.
The family of Lexi Catlin say she was "kind and outgoing", on what would have been her 16th birthday.
The 15-year-old girl was a pillion passenger on the motorbike.
The National Film and Television School is nominated in the British Short Film category.
There will be no services between London Marylebone and Aylesbury Vale Parkway for four days.
