Access is provided to the westbound lanes via median u-turn crossovers on either side of the intersection.
The eastbound tunnel ended to the west of the station in a dead-end reversing siding with a cross-over junction connecting it to the westbound tunnel.
It is proposed to provide a new westbound carriageway to the south of the existing motorway, and a new eastbound carriageway generally on the line of the existing westbound one.
Over 300,000 of these were westbound.
Thirdly, for westbound traffic, between 8 am and 4 pm on weekdays all goods vehicles in excess of 7·5 tonnes will be channelled through one toll booth.
There is a difference in freight rates between east- and westbound traffic.
An accident involving several vehicles occurred in the westbound carriageway at 17.48 and this was not cleared until 21.44.
The westbound carriageway is involved in this essential maintenance work.
