1.   Forty-six vehicles were involved in the accident on the eastbound carriageway near Swindon last March.

2.   The eastbound carriageway of the M-Fifty motorway was closed for five hours following the accident.

3.   Westbound traffic shares the eastbound carriageway.

4.   While the police only blocked one lane of the East Changan Avenue during the meeting last week, yesterday they extended the restriction to the whole eastbound carriageway.