I guess a large part of it is folks choosing to give public transport a swerve on account of a global pandemic and the huge numbers of mask-dodgers on aforementioned public transport
Practically everybody on the 25 bus I was on bailed out by the signs to The Keep. This was about 6.45pm. Traffic just wasn't moving. At that rate of progress, if we'd stayed on til Sports Hall, we'd have been hard pushed to make it into the ground for kick-off time