In reply to John Stainforth:
For England/Wales, Highway Code 64 links to an offence under Section 72 of Highway Act 1835 (with amendment); this is quite amusing. Not just cycling on a footpath by the side of road, ass owners also be warned.
72 Penalty on persons committing nuisances by riding on footpaths, &c.
If any person shall wilfully ride upon any footpath or causeway by the side of any road made or set apart for the use or accommodation of foot passengers; or shall wilfully lead or drive any horse, ass, sheep, mule, swine, or cattle or carriage of any description, or any truck or sledge, upon any such footpath or causeway; or shall tether any horse, ass, mule, swine, or cattle, on any highway, so as to suffer or permit the tethered animal to be thereon; every person so offending in any of the cases aforesaid shall for each and every such offence forfeit and pay any sum not exceeding [F3level 2 on the standard scale], over and above the damages occasioned thereby.
[Scotland has its own Roads Act].