Alan McDonald, 33, from Glasgow, died after being hit by a white Peugeot Boxer van on the eastbound carriageway near Bathgate at around 6.20pm on Tuesday.
The road was closed for around seven hours.
Officers continue to appeal for information to anyone who may have witnessed the crash.
Sergeant Andrew Trotter, of Road Policing East, said: “This was a tragic incident and we will continue to support Alan's family at this difficult time.
“The investigation into the circumstances surrounding the crash continues and I would ask anyone who has any information that they get in contact with officers.
“I would appeal to those who have possible dashcam footage of the area to come forward and speak to Police.
“Police can be contacted by calling 101 and quoting incident number 2613 of Tuesday, 20 October, 2020.”