I'm making an unusual (for me) journey on Thursday morning, Reading to Stevenage, needing to arrive a bit before 9am.
Can anyone advise whether it's best to stick to the M25 and get straight on the A1(M), or come off at J21A and take the A405/414 to the Hatfield tunnel, cutting the corner a bit? Will there be anything in it at that time of day in terms of weight of traffic/speed?
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