But the "consensus building group" is believed to have stopped short - given the wide range of organisations represented on it - of expressing total support for road charges.
The group will remind Mr Brown, however, that without those, ratepayers face even higher rises in property charges from 2016 to bridge a funding gap revealed in the Auckland Plan, which prescribes transport projects the group expects to cost $68 billion.
Separate transport sources also indicated yesterday that a "surprisingly" large proportion of 2300 public submissions on an earlier options paper preferred road charges, to spread the load.
That paper ruled out about 20 options such as assets sales, a regional sales tax and a lottery before leaving Aucklanders with a stark choice between hefty rates rises combined with fuel tax rises in one corner, and a combination of enhanced traditional funding sources and road charges in the other.
Although the Government is opposed to charging drivers to use existing motorways, it is understood the report will suggest tolls at the off-ramps to local roads, given that those are half-funded by ratepayers.
Long-distance travellers would be free to drive through the city without being charged, as long as they stayed on the motorways.
The group will emphasise at the release of its final report at the Town Hall this afternoon that politicians need to make tough decisions by 2015, before the annual funding gap becomes too wide.
It will also call for a detailed assessment of the impact of road charges on Auckland households, and their fairest geographical distribution.
Council transport chairman Mike Lee said he believed Aucklanders were "more than paying their way" and he didn't think trying to find more cash from them "is on right now".
