Obstruction – Anything which interferes with the passage of the public on a public street, or with free access over any part of it. It is a ‘public nuisance’ in law, and committing such a nuisance is a crime; it is the duty of the local Traffic Police and the local Road Agency to seek, prevent and remove obstructions. Citizens coming across an obstruction may legally ‘abate’ it, removing enough to carry on their trip. Otherwise, the Traffic Police should be informed. In some jurisdictions there is also a common law right to divert around the obstruction in certain dangerous situations.