I see the vote is going in favour of "yes". But I'm sure that "know" is a typo, so, hopefully, the person in support of it meant "don't know".

Here's the law for those that may need to cite it.

London Local Authorities and Transport for London Act 2003.

14 Parking at dropped footways (1) This section shall apply to any part of the carriageway of?
(a) any GLA road or GLA side road in a special parking area; and
(b) any other road in a special parking area in the area of a borough council,
which is adjacent to a dropped footway.
(2) But this section shall not apply in respect of any part of the carriageway during any period in which?
(a) an order under section 6 or section 9 of the Act of 1984 (which make provision about road traffic regulation orders) prohibits or permits the waiting of vehicles on it; or
(b) an order under section 45 of the Act of 1984 (Designation of parking places on highways) provides for its use as a designated parking place.
(3) A driver of a vehicle shall not at any time cause it to wait on a part of a road to which this section applies and the prohibition under this subsection shall be enforceable as if it had been imposed by an order under the said section 6.
(4) In the case where?
(a) residential premises have a driveway which is not shared by other premises; and
(b) the purpose of the dropped footway is to assist vehicles to enter or leave the road from or to the driveway,
the relevant borough council or Transport for London, as the case may be, may not issue a penalty charge notice in respect of any breach of the prohibition under subsection (3) above unless requested to do so by the occupier of the premises.
(5) Nothing in subsection (3) above shall require the placing of any traffic signs in connection with the prohibition thereby imposed.
(6) Nothing in this section shall prohibit the driver of a vehicle from causing it to wait in the circumstances mentioned in subsection (3) above?
(a) if the vehicle is being used for fire brigade, ambulance or police purposes;
(b) if the driver is prevented from proceeding by circumstances beyond his control or it is necessary for him to wait in order to avoid an accident;
© for so long as may be necessary for the purpose of enabling persons to board or alight from the vehicle;
(d) for so long as may be necessary (up to a maximum of 20 minutes) for the delivery or collection of goods or merchandise or the loading or unloading of the vehicle at any premises if that cannot reasonably be carried out as respects those premises without waiting as mentioned in subsection (3) above; or
(e) if the vehicle is being used for a purpose to which subsection (7) below applies and cannot be used for that purpose without so waiting.