Unmarked MWay roadworks - pdc {P}
Twice in the past week I have joined the motorway to find that lane 3 is coned off, but there have been no warnings on the slip road.

First time was last wednesday, at 2230 ish, joining the M60 anticlockwise from the M61. Second time was about 1400 on Sunday, joining the M61 West bound at j5.

It struck me, especially during the dusk on Wednesday, that the lack of warning on the slip was dangerous. Is there no requirement for any warning notices on the slip roads?